FreeBSD : bash -- remote code execution vulnerability (71ad81da-4414-11e4-a33e-3c970e169bc2) (Shellshock) - Nessus

Critical   Plugin ID: 77836

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This page contains detailed information about the FreeBSD : bash -- remote code execution vulnerability (71ad81da-4414-11e4-a33e-3c970e169bc2) (Shellshock) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Plugin Overview

---

ID: 77836
Name: FreeBSD : bash -- remote code execution vulnerability (71ad81da-4414-11e4-a33e-3c970e169bc2) (Shellshock)
Filename: freebsd_pkg_71ad81da441411e4a33e3c970e169bc2.nasl
Vulnerability Published: 2014-09-24
This Plugin Published: 2014-09-25
Last Modification Time: 2022-01-31
Plugin Version: 1.20
Plugin Type: local
Plugin Family: FreeBSD Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/FreeBSD/pkg_info, Host/FreeBSD/release, Host/local_checks_enabled

Vulnerability Information

---

Severity: Critical
Vulnerability Published: 2014-09-24
Patch Published: 2014-09-24
CVE [?]: CVE-2014-6271, CVE-2014-7169
CPE [?]: cpe:/o:freebsd:freebsd, p-cpe:/a:freebsd:freebsd:bash, p-cpe:/a:freebsd:freebsd:bash-static, p-cpe:/a:freebsd:freebsd:linux_base-c6
Exploited by Malware: True
In the News: True

Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

Chet Ramey reports :

Under certain circumstances, bash will execute user code while processing the environment for exported function definitions.

The original fix released for CVE-2014-6271 was not adequate. A similar vulnerability was discovered and tagged as CVE-2014-7169.

Solution

Update the affected packages.

Public Exploits

---

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, Exploit-DB, GitHub, Core Impact)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the FreeBSD : bash -- remote code execution vulnerability (71ad81da-4414-11e4-a33e-3c970e169bc2) (Shellshock) vulnerability:

1. Metasploit: exploit/unix/smtp/qmail_bash_env_exec
   [Qmail SMTP Bash Environment Variable Injection (Shellshock)]
2. Metasploit: exploit/linux/http/advantech_switch_bash_env_exec
   [Advantech Switch Bash Environment Variable Code Injection (Shellshock)]
3. Metasploit: auxiliary/scanner/http/apache_mod_cgi_bash_env
   [Apache mod_cgi Bash Environment Variable Injection (Shellshock) Scanner]
4. Metasploit: exploit/multi/http/apache_mod_cgi_bash_env_exec
   [Apache mod_cgi Bash Environment Variable Code Injection (Shellshock)]
5. Metasploit: exploit/unix/dhcp/bash_environment
   [Dhclient Bash Environment Variable Injection (Shellshock)]
6. Metasploit: exploit/multi/http/cups_bash_env_exec
   [CUPS Filter Bash Environment Variable Code Injection (Shellshock)]
7. Metasploit: auxiliary/server/dhclient_bash_env
   [DHCP Client Bash Environment Variable Code Injection (Shellshock)]
8. Metasploit: exploit/linux/http/ipfire_bashbug_exec
   [IPFire Bash Environment Variable Injection (Shellshock)]
9. Metasploit: exploit/multi/ftp/pureftpd_bash_env_exec
   [Pure-FTPd External Authentication Bash Environment Variable Code Injection (Shellshock)]
10. Metasploit: exploit/osx/local/vmware_bash_function_root
    [OS X VMWare Fusion Privilege Escalation via Bash Environment Code Injection (Shellshock)]
11. Exploit-DB: exploits/linux/local/40938.py
    [EDB-40938: RedStar 3.0 Server - 'Shellshock' 'BEAM' / 'RSSMON' Command Injection]
12. Exploit-DB: exploits/cgi/remote/34777.rb
    [EDB-34777: GNU Bash - Environment Variable Command Injection (Metasploit)]
13. Exploit-DB: exploits/linux/remote/34860.py
    [EDB-34860: GNU bash 4.3.11 - Environment Variable dhclient]
14. Exploit-DB: exploits/linux/remote/34862.rb
    [EDB-34862: Pure-FTPd - External Authentication Bash Environment Variable Code Injection (Metasploit)]
15. Exploit-DB: exploits/linux/remote/34879.txt
    [EDB-34879: OpenVPN 2.2.29 - 'Shellshock' Remote Command Injection]
16. Exploit-DB: exploits/linux/remote/35115.rb
    [EDB-35115: CUPS Filter - Bash Environment Variable Code Injection (Metasploit)]
17. Exploit-DB: exploits/hardware/remote/36503.rb
    [EDB-36503: QNAP - Admin Shell via Bash Environment Variable Code Injection (Metasploit)]
18. Exploit-DB: exploits/hardware/remote/36504.rb
    [EDB-36504: QNAP - Web Server Remote Code Execution via Bash Environment Variable Code Injection (Metasploit)]
19. Exploit-DB: exploits/linux/remote/36933.py
    [EDB-36933: dhclient 4.1 - Bash Environment Variable Command Injection (Shellshock)]
20. Exploit-DB: exploits/cgi/remote/38849.rb
    [EDB-38849: Advantech Switch - 'Shellshock' Bash Environment Variable Command Injection (Metasploit)]
21. Exploit-DB: exploits/cgi/remote/39918.rb
    [EDB-39918: IPFire - 'Shellshock' Bash Environment Variable Command Injection (Metasploit)]
22. Exploit-DB: exploits/hardware/remote/40619.py
    [EDB-40619: TrendMicro InterScan Web Security Virtual Appliance - 'Shellshock' Remote Command Injection]
23. Exploit-DB: exploits/linux/remote/42938.rb
    [EDB-42938: Qmail SMTP - Bash Environment Variable Injection (Metasploit)]
24. Exploit-DB: exploits/multiple/remote/48651.txt
    [EDB-48651: Qmail SMTP 1.03 - Bash Environment Variable Injection]
25. Exploit-DB: exploits/cgi/webapps/34839.py
    [EDB-34839: IPFire - CGI Web Interface (Authenticated) Bash Environment Variable Code Injection]
26. Exploit-DB: exploits/cgi/webapps/34895.rb
    [EDB-34895: Bash CGI - 'Shellshock' Remote Command Injection (Metasploit)]
27. Exploit-DB: exploits/php/webapps/35146.txt
    [EDB-35146: PHP < 5.6.2 - 'Shellshock' Safe Mode / disable_functions Bypass / Command Injection]
28. Exploit-DB: exploits/multiple/webapps/37816.txt
    [EDB-37816: Cisco Unified Communications Manager - Multiple Vulnerabilities]
29. GitHub: https://github.com/0bfxgh0st-secondary/ShellShock
    [CVE-2014-6271: Local and Remote scan for shellshock vulnerability for Bash versions lower than ...]
30. GitHub: https://github.com/0bfxgh0st/ShellShock
    [CVE-2014-6271: Local and Remote scan for shellshock vulnerability for Bash versions lower than ...]
31. GitHub: https://github.com/0bfxgh0st/shellshock-scan
    [CVE-2014-6271: Light scan for ShellShock Vulnerability for Bash versions lower than 4.3.* ...]
32. GitHub: https://github.com/0x00-0x00/CVE-2014-6271
    [CVE-2014-6271: Shellshock exploitation script that is able to upload and RCE using any vector due ...]
33. GitHub: https://github.com/0xh4di/awesome-security
    [CVE-2014-6271]
34. GitHub: https://github.com/0xkasra/CVE-2014-6271
    [CVE-2014-6271]
35. GitHub: https://github.com/3vikram/Application-Vulnerabilities-Payloads
    [CVE-2014-6271]
36. GitHub: https://github.com/84KaliPleXon3/Payloads_All_The_Things
    [CVE-2014-6271]
37. GitHub: https://github.com/APSL/salt-shellshock
    [CVE-2014-6271: Salt recipe for shellshock (CVE-2014-6271)]
38. GitHub: https://github.com/Addho/test
    [CVE-2014-6271]
39. GitHub: https://github.com/AfvanMoopen/tryhackme-
    [CVE-2014-6271]
40. GitHub: https://github.com/Anklebiter87/Cgi-bin_bash_Reverse
    [CVE-2014-6271: Written fro CVE-2014-6271]
41. GitHub: https://github.com/Any3ite/CVE-2014-6271
    [CVE-2014-6271]
42. GitHub: https://github.com/Aruthw/CVE-2014-6271
    [CVE-2014-6271]
43. GitHub: https://github.com/BetaZeon/CyberSecurity_Resources
    [CVE-2014-6271]
44. GitHub: https://github.com/BionicSwash/Awsome-Pentest
    [CVE-2014-6271]
45. GitHub: https://github.com/BitTheByte/Eagle
    [CVE-2014-6271]
46. GitHub: https://github.com/ByteHackr/HackingTools-2
    [CVE-2014-6271]
47. GitHub: https://github.com/Cyberleet1337/Payloadswebhack
    [CVE-2014-6271]
48. GitHub: https://github.com/D3Ext/PentestDictionary
    [CVE-2014-6271]
49. GitHub: https://github.com/Delishsploits/PayloadsAndMethodology
    [CVE-2014-6271]
50. GitHub: https://github.com/Dilith006/CVE-2014-6271
    [CVE-2014-6271]
51. GitHub: https://github.com/EvilAnne/Python_Learn
    [CVE-2014-6271]
52. GitHub: https://github.com/EvilHat/awesome-hacking
    [CVE-2014-6271]
53. GitHub: https://github.com/EvilHat/awesome-security
    [CVE-2014-6271]
54. GitHub: https://github.com/EvilHat/pentest-resource
    [CVE-2014-6271]
55. GitHub: https://github.com/Fa1c0n35/Penetration-Testing02
    [CVE-2014-6271]
56. GitHub: https://github.com/Fedex100/awesome-security
    [CVE-2014-6271]
57. GitHub: https://github.com/GuynnR/Payloads
    [CVE-2014-6271]
58. GitHub: https://github.com/H0j3n/EzpzCheatSheet
    [CVE-2014-6271]
59. GitHub: https://github.com/Hemanthraju02/web-hacking
    [CVE-2014-6271]
60. GitHub: https://github.com/Horovtom/BSY-bonus
    [CVE-2014-6271]
61. GitHub: https://github.com/Jahismighty/pentest-apps
    [CVE-2014-6271]
62. GitHub: https://github.com/Jean-Francois-C/Boot2root-CTFs-Writeups
    [CVE-2014-6271]
63. GitHub: https://github.com/JowardBince/ShellShock
    [CVE-2014-6271: A python script intended to automate cgi-bin based exploitation of the ShellSchock ...]
64. GitHub: https://github.com/Kaizhe/attacker
    [CVE-2014-6271]
65. GitHub: https://github.com/LearnGolang/LearnGolang
    [CVE-2014-6271]
66. GitHub: https://github.com/LubinLew/WEB-CVE
    [CVE-2014-6271]
67. GitHub: https://github.com/Ly0nt4r/ShellShock
    [CVE-2014-6271]
68. GitHub: https://github.com/Moe-93/penttest
    [CVE-2014-6271]
69. GitHub: https://github.com/MrCl0wnLab/ShellShockHunter
    [CVE-2014-6271]
70. GitHub: https://github.com/Muhammd/Awesome-Payloads
    [CVE-2014-6271]
71. GitHub: https://github.com/MuirlandOracle/CVE-2014-6271-IPFire
    [CVE-2014-6271]
72. GitHub: https://github.com/NCSU-DANCE-Research-Group/CDL
    [CVE-2014-6271]
73. GitHub: https://github.com/Nieuport/Awesome-Security
    [CVE-2014-6271]
74. GitHub: https://github.com/OshekharO/Penetration-Testing
    [CVE-2014-6271]
75. GitHub: https://github.com/P0cL4bs/ShellShock-CGI-Scan
    [CVE-2014-6271: A script, in C, to check if CGI scripts are vulnerable to CVE-2014-6271 (The Bash ...]
76. GitHub: https://github.com/Pilou-Pilou/docker_CVE-2014-6271.
    [CVE-2014-6271]
77. GitHub: https://github.com/Prodject/Kn0ck
    [CVE-2014-6271]
78. GitHub: https://github.com/QWERTSKIHACK/awesome-web-hacking
    [CVE-2014-6271]
79. GitHub: https://github.com/R0B1NL1N/E-x-p-l-o-i-t-s
    [CVE-2014-6271]
80. GitHub: https://github.com/RDKPatil/Penetration-test
    [CVE-2014-6271]
81. GitHub: https://github.com/RainMak3r/Rainstorm
    [CVE-2014-6271: CVE-2014-6271 RCE tool]
82. GitHub: https://github.com/SARATOGAMarine/Lastest-Web-Hacking-Tools-vol-I
    [CVE-2014-6271]
83. GitHub: https://github.com/SaltwaterC/sploit-tools
    [CVE-2014-6271]
84. GitHub: https://github.com/Secop/awesome-security
    [CVE-2014-6271]
85. GitHub: https://github.com/Sindadziy/cve-2014-6271
    [CVE-2014-6271]
86. GitHub: https://github.com/Sindayifu/CVE-2019-14287-CVE-2014-6271
    [CVE-2014-6271]
87. GitHub: https://github.com/Soldie/Colection-pentest
    [CVE-2014-6271]
88. GitHub: https://github.com/Soldie/Penetration-Testing
    [CVE-2014-6271]
89. GitHub: https://github.com/Swordfish-Security/Pentest-In-Docker
    [CVE-2014-6271]
90. GitHub: https://github.com/Trietptm-on-Awesome-Lists/become-a-penetration-tester
    [CVE-2014-6271]
91. GitHub: https://github.com/UroBs17/hacking-tools
    [CVE-2014-6271]
92. GitHub: https://github.com/Voxer/nagios-plugins
    [CVE-2014-6271]
93. GitHub: https://github.com/XPR1M3/Payloads_All_The_Things
    [CVE-2014-6271]
94. GitHub: https://github.com/XiphosResearch/exploits
    [CVE-2014-6271]
95. GitHub: https://github.com/aalderman19/CyberSec-Assignement9
    [CVE-2014-6271]
96. GitHub: https://github.com/abhinavkakku/Ethical-Hacking-Tutorials
    [CVE-2014-6271]
97. GitHub: https://github.com/adm0i/Web-Hacking
    [CVE-2014-6271]
98. GitHub: https://github.com/ajino2k/awesome-security
    [CVE-2014-6271]
99. GitHub: https://github.com/akiraaisha/shellshocker-python
    [CVE-2014-6271: This is a Python Application that helps you detect if your machine that run bash is ...]
100. GitHub: https://github.com/akr3ch/CVE-2014-6271
     [CVE-2014-6271: ShellShock interactive-shell exploit]
101. GitHub: https://github.com/albinowax/ActiveScanPlusPlus
     [CVE-2014-6271]
102. GitHub: https://github.com/alex14324/Eagel
     [CVE-2014-6271]
103. GitHub: https://github.com/alexphiliotis/ShellShock
     [CVE-2014-6271: A python script intended to automate the exploitation of the ShellSchock ...]
104. GitHub: https://github.com/amalaqd/InfoSecPractitionerToolsList
     [CVE-2014-6271]
105. GitHub: https://github.com/amcai/myscan
     [CVE-2014-6271]
106. GitHub: https://github.com/andr3w-hilton/Penetration_Testing_Resources
     [CVE-2014-6271]
107. GitHub: https://github.com/andrysec/PayloadsAllVulnerability
     [CVE-2014-6271]
108. GitHub: https://github.com/anhtu97/PayloadAllEverything
     [CVE-2014-6271]
109. GitHub: https://github.com/antoinegoze/learn-web-hacking
     [CVE-2014-6271]
110. GitHub: https://github.com/apkadmin/PayLoadsAll
     [CVE-2014-6271]
111. GitHub: https://github.com/ariarijp/vagrant-shellshock
     [CVE-2014-6271: CVE-2014-6271の検証用Vagrantfileです]
112. GitHub: https://github.com/b4keSn4ke/CVE-2014-6271
     [CVE-2014-6271: Shellshock exploit aka CVE-2014-6271]
113. GitHub: https://github.com/b4keSn4ke/shellshock
     [CVE-2014-6271: Shellshock exploit aka CVE-2014-6271]
114. GitHub: https://github.com/blackpars4x4/pentesting
     [CVE-2014-6271]
115. GitHub: https://github.com/briskinfosec/Tools
     [CVE-2014-6271]
116. GitHub: https://github.com/capture0x/XSHOCK
     [CVE-2014-6271]
117. GitHub: https://github.com/catsecorg/CatSec-TryHackMe-WriteUps
     [CVE-2014-6271]
118. GitHub: https://github.com/chanchalpatra/payload
     [CVE-2014-6271]
119. GitHub: https://github.com/chuang76/writ3up
     [CVE-2014-6271]
120. GitHub: https://github.com/cyberharsh/Shellbash-CVE-2014-6271
     [CVE-2014-6271]
121. GitHub: https://github.com/czq945659538/-study
     [CVE-2014-6271]
122. GitHub: https://github.com/dadglad/aawesome-security
     [CVE-2014-6271]
123. GitHub: https://github.com/devhackrahul/Penetration-Testing-
     [CVE-2014-6271]
124. GitHub: https://github.com/dinamsky/awesome-security
     [CVE-2014-6271]
125. GitHub: https://github.com/dlitz/bash-cve-2014-6271-fixes
     [CVE-2014-6271: Collected fixes for bash CVE-2014-6271]
126. GitHub: https://github.com/dokku-alt/dokku-alt
     [CVE-2014-6271]
127. GitHub: https://github.com/erSubhashThapa/pentesting
     [CVE-2014-6271]
128. GitHub: https://github.com/eric-erki/Penetration-Testing
     [CVE-2014-6271]
129. GitHub: https://github.com/foobarto/redteam-notebook
     [CVE-2014-6271]
130. GitHub: https://github.com/francisck/shellshock-cgi
     [CVE-2014-6271: A python script to enumerate CGI scripts vulnerable to CVE-2014-6271 on one specific ...]
131. GitHub: https://github.com/gabemarshall/shocknaww
     [CVE-2014-6271: Simple script to check for CVE-2014-6271]
132. GitHub: https://github.com/gipi/cve-cemetery
     [CVE-2014-6271]
133. GitHub: https://github.com/googleinurl/Xpl-SHELLSHOCK-Ch3ck
     [CVE-2014-6271]
134. GitHub: https://github.com/gpoojareddy/Security
     [CVE-2014-6271]
135. GitHub: https://github.com/hacden/vultools
     [CVE-2014-6271]
136. GitHub: https://github.com/hailan09/Hacker
     [CVE-2014-6271]
137. GitHub: https://github.com/hilal007/E-Tip
     [CVE-2014-6271]
138. GitHub: https://github.com/hktalent/myhktools
     [CVE-2014-6271]
139. GitHub: https://github.com/hmlio/vaas-cve-2014-6271
     [CVE-2014-6271: Vulnerability as a service: showcasing CVS-2014-6271, a.k.a. Shellshock]
140. GitHub: https://github.com/huangzhe312/pentest
     [CVE-2014-6271]
141. GitHub: https://github.com/ilismal/Nessus_CVE-2014-6271_check
     [CVE-2014-6271: Quick and dirty nessus .audit file to check is bash is vulnerable to CVE-2014-6271 ...]
142. GitHub: https://github.com/indiandragon/Shellshock-Vulnerability-Scan
     [CVE-2014-6271: Android app to scan for bash Vulnerability - CVE-2014-6271 also known as Shellshock ...]
143. GitHub: https://github.com/infosecmahi/AWeSome_Pentest
     [CVE-2014-6271]
144. GitHub: https://github.com/infoslack/awesome-web-hacking
     [CVE-2014-6271]
145. GitHub: https://github.com/internero/debian-lenny-bash_3.2.52-cve-2014-6271
     [CVE-2014-6271: Debian Lenny Bash packages with cve-2014-6271 patches (i386 and amd64)]
146. GitHub: https://github.com/jblaine/cookbook-bash-CVE-2014-6271
     [CVE-2014-6271: Chef cookbook that will fail if bash vulnerability found per CVE-2014-6271]
147. GitHub: https://github.com/jottama/pentesting
     [CVE-2014-6271]
148. GitHub: https://github.com/kk98kk0/Payloads
     [CVE-2014-6271]
149. GitHub: https://github.com/kowshik-sundararajan/CVE-2014-6271
     [CVE-2014-6271: CS4238 Computer Security Practices]
150. GitHub: https://github.com/ksang/shellshock
     [CVE-2014-6271: CVE 2014-6271 PoC Tool by kaitoY]
151. GitHub: https://github.com/lethanhtrung22/Awesome-Hacking
     [CVE-2014-6271]
152. GitHub: https://github.com/linuxjustin/Pentest
     [CVE-2014-6271]
153. GitHub: https://github.com/linuxjustin/Tools
     [CVE-2014-6271]
154. GitHub: https://github.com/lotusirous/vulnwebcollection
     [CVE-2014-6271]
155. GitHub: https://github.com/lp008/Hack-readme
     [CVE-2014-6271]
156. GitHub: https://github.com/mahyarx/pentest-tools
     [CVE-2014-6271]
157. GitHub: https://github.com/majidkalantarii/WebHacking
     [CVE-2014-6271]
158. GitHub: https://github.com/marrocamp/Impressionante-pentest
     [CVE-2014-6271]
159. GitHub: https://github.com/marrocamp/Impressionante-teste-de-penetra-o
     [CVE-2014-6271]
160. GitHub: https://github.com/marroocamp/Recursos-pentest
     [CVE-2014-6271]
161. GitHub: https://github.com/mattclegg/CVE-2014-6271
     [CVE-2014-6271]
162. GitHub: https://github.com/meherarfaoui09/meher
     [CVE-2014-6271]
163. GitHub: https://github.com/minkhant-dotcom/awesome_security
     [CVE-2014-6271]
164. GitHub: https://github.com/mochizuki875/CVE-2014-6271-Apache-Debian
     [CVE-2014-6271: This Repo is PoC environment of ...]
165. GitHub: https://github.com/mostakimur/SecurityTesting_web-hacking
     [CVE-2014-6271]
166. GitHub: https://github.com/mrhacker51/ReverseShellCommands
     [CVE-2014-6271]
167. GitHub: https://github.com/nabaratanpatra/CODE-FOR-FUN
     [CVE-2014-6271]
168. GitHub: https://github.com/nikamajinkya/PentestEx
     [CVE-2014-6271]
169. GitHub: https://github.com/noname1007/awesome-web-hacking
     [CVE-2014-6271]
170. GitHub: https://github.com/notsag-dev/htb-shocker
     [CVE-2014-6271]
171. GitHub: https://github.com/npm/ansible-bashpocalypse
     [CVE-2014-6271: Patch for CVE-2014-6271]
172. GitHub: https://github.com/nvnpsplt/hack
     [CVE-2014-6271]
173. GitHub: https://github.com/oncybersec/oscp-enumeration-cheat-sheet
     [CVE-2014-6271]
174. GitHub: https://github.com/oneplush/hacking_tutorials
     [CVE-2014-6271]
175. GitHub: https://github.com/oneplus-x/Sn1per
     [CVE-2014-6271]
176. GitHub: https://github.com/opsxcq/exploit-CVE-2014-6271
     [CVE-2014-6271: Shellshock exploit + vulnerable environment]
177. GitHub: https://github.com/ozkanbilge/Payloads
     [CVE-2014-6271]
178. GitHub: https://github.com/parveshkatoch/Penetration-Testing
     [CVE-2014-6271]
179. GitHub: https://github.com/paulveillard/cybersecurity
     [CVE-2014-6271]
180. GitHub: https://github.com/paulveillard/cybersecurity-penetration-testing
     [CVE-2014-6271]
181. GitHub: https://github.com/paulveillard/cybersecurity-web-hacking
     [CVE-2014-6271]
182. GitHub: https://github.com/persian64/CVE-2014-6271
     [CVE-2014-6271]
183. GitHub: https://github.com/pr0code/web-hacking
     [CVE-2014-6271]
184. GitHub: https://github.com/prasadnadkarni/Pentest-resources
     [CVE-2014-6271]
185. GitHub: https://github.com/proclnas/ShellShock-CGI-Scan
     [CVE-2014-6271: A script, in C, to check if CGI scripts are vulnerable to CVE-2014-6271 (The Bash ...]
186. GitHub: https://github.com/pwnGuy/shellshock-shell
     [CVE-2014-6271: A simple python shell-like exploit for the Shellschok CVE-2014-6271 bug.]
187. GitHub: https://github.com/qinguangjun/awesome-security
     [CVE-2014-6271]
188. GitHub: https://github.com/r3p3r/nixawk-awesome-pentest
     [CVE-2014-6271]
189. GitHub: https://github.com/r3p3r/paralax-awesome-pentest
     [CVE-2014-6271]
190. GitHub: https://github.com/r3p3r/paralax-awesome-web-hacking
     [CVE-2014-6271]
191. GitHub: https://github.com/r4z0r5/SwissArmyShellshocker
     [CVE-2014-6271: A multifunctional tool for checking and exploiting the Shellshock(a. k. a. Bashd00r) ...]
192. GitHub: https://github.com/rajangiri01/test
     [CVE-2014-6271]
193. GitHub: https://github.com/ramnes/pyshellshock
     [CVE-2014-6271: :scream: Python library and utility for CVE-2014-6271 (aka. "shellshock")]
194. GitHub: https://github.com/rashmikadileeshara/CVE-2014-6271-Shellshock-
     [CVE-2014-6271: This is an individual assignment for secure network programming]
195. GitHub: https://github.com/renanvicente/puppet-shellshock
     [CVE-2014-6271: This module determine the vulnerability of a bash binary to the shellshock exploits ...]
196. GitHub: https://github.com/roninAPT/pentest-kit
     [CVE-2014-6271]
197. GitHub: https://github.com/rrreeeyyy/cve-2014-6271-spec
     [CVE-2014-6271]
198. GitHub: https://github.com/rsc-dev/cve_db
     [CVE-2014-6271]
199. GitHub: https://github.com/ryeyao/CVE-2014-6271_Test
     [CVE-2014-6271]
200. GitHub: https://github.com/sachinis/pentest-resources
     [CVE-2014-6271]
201. GitHub: https://github.com/samba234/Sniper
     [CVE-2014-6271]
202. GitHub: https://github.com/sbilly/awesome-security
     [CVE-2014-6271]
203. GitHub: https://github.com/sch3m4/RIS
     [CVE-2014-6271: CVE-2014-6271 Remote Interactive Shell - PoC Exploit]
204. GitHub: https://github.com/scottjpack/shellshock_scanner
     [CVE-2014-6271: Python Scanner for "ShellShock" (CVE-2014-6271)]
205. GitHub: https://github.com/securusglobal/BadBash
     [CVE-2014-6271: CVE-2014-6271 (ShellShock) RCE PoC tool]
206. GitHub: https://github.com/shawntns/exploit-CVE-2014-6271
     [CVE-2014-6271]
207. GitHub: https://github.com/shayezkarim/pentest
     [CVE-2014-6271]
208. GitHub: https://github.com/shildenbrand/Exploits
     [CVE-2014-6271]
209. GitHub: https://github.com/sobinge/PayloadsAllThesobinge
     [CVE-2014-6271]
210. GitHub: https://github.com/sobinge/--1
     [CVE-2014-6271]
211. GitHub: https://github.com/somhm-solutions/Shell-Shock
     [CVE-2014-6271: *CVE-2014-6271* Unix Arbitrary Code Execution Exploit commonly know as Shell Shock. ...]
212. GitHub: https://github.com/spy86/Security-Awesome
     [CVE-2014-6271]
213. GitHub: https://github.com/sunnyjiang/shellshocker-android
     [CVE-2014-6271: This is an Android Application that helps you detect if your machine that run bash ...]
214. GitHub: https://github.com/takuzoo3868/laputa
     [CVE-2014-6271]
215. GitHub: https://github.com/teedeedubya/bash-fix-exploit
     [CVE-2014-6271: Ansible role to check the CVE-2014-6271 vulnerability]
216. GitHub: https://github.com/thanshurc/awesome-web-hacking
     [CVE-2014-6271]
217. GitHub: https://github.com/tobor88/Bash
     [CVE-2014-6271]
218. GitHub: https://github.com/trapp3rhat/CVE-shellshock
     [CVE-2014-6271]
219. GitHub: https://github.com/u20024804/bash-3.2-fixed-CVE-2014-6271
     [CVE-2014-6271]
220. GitHub: https://github.com/u20024804/bash-4.2-fixed-CVE-2014-6271
     [CVE-2014-6271]
221. GitHub: https://github.com/u20024804/bash-4.3-fixed-CVE-2014-6271
     [CVE-2014-6271]
222. GitHub: https://github.com/unusualwork/Sn1per
     [CVE-2014-6271]
223. GitHub: https://github.com/uoanlab/vultest
     [CVE-2014-6271]
224. GitHub: https://github.com/val922/cyb3r53cur1ty
     [CVE-2014-6271]
225. GitHub: https://github.com/vishalrudraraju/Pen-test
     [CVE-2014-6271]
226. GitHub: https://github.com/vonnyfly/shellshock_crawler
     [CVE-2014-6271: Using google to scan sites for "ShellShock" (CVE-2014-6271)]
227. GitHub: https://github.com/w4fz5uck5/ShockZaum-CVE-2014-6271
     [CVE-2014-6271: Shellshock vulnerability attacker]
228. GitHub: https://github.com/wanirauf/pentest
     [CVE-2014-6271]
229. GitHub: https://github.com/wattson-coder/pablo_rotem_security
     [CVE-2014-6271]
230. GitHub: https://github.com/winterwolf32/Penetration-Testing
     [CVE-2014-6271]
231. GitHub: https://github.com/winterwolf32/awesome-web-hacking
     [CVE-2014-6271]
232. GitHub: https://github.com/winterwolf32/awesome-web-hacking-1
     [CVE-2014-6271]
233. GitHub: https://github.com/woltage/CVE-2014-6271
     [CVE-2014-6271]
234. GitHub: https://github.com/wtsxDev/List-of-web-application-security
     [CVE-2014-6271]
235. GitHub: https://github.com/wtsxDev/Penetration-Testing
     [CVE-2014-6271]
236. GitHub: https://github.com/x2c3z4/shellshock_crawler
     [CVE-2014-6271: Using google to scan sites for "ShellShock" (CVE-2014-6271)]
237. GitHub: https://github.com/xiaoy-sec/Pentest_Note
     [CVE-2014-6271]
238. GitHub: https://github.com/x-o-r-r-o/PHP-Webshells-Collection
     [CVE-2014-6271]
239. GitHub: https://github.com/zhang040723/web
     [CVE-2014-6271]
240. GitHub: https://github.com/Jean-Francois-C/Boot2root-CTFs-Writeups
     [CVE-2014-7169]
241. GitHub: https://github.com/LubinLew/WEB-CVE
     [CVE-2014-7169]
242. GitHub: https://github.com/MrCl0wnLab/ShellShockHunter
     [CVE-2014-7169]
243. GitHub: https://github.com/Prashant-kumar/totalshares
     [CVE-2014-7169]
244. GitHub: https://github.com/SaltwaterC/sploit-tools
     [CVE-2014-7169]
245. GitHub: https://github.com/chef-boneyard/bash-shellshock
     [CVE-2014-7169: DEPRECATED: Chef cookbook to audit & remediate "Shellshock" (BASH-CVE-2014-7169)]
246. GitHub: https://github.com/dokku-alt/dokku-alt
     [CVE-2014-7169]
247. GitHub: https://github.com/foobarto/redteam-notebook
     [CVE-2014-7169]
248. GitHub: https://github.com/gina-alaska/bash-cve-2014-7169-cookbook
     [CVE-2014-7169]
249. GitHub: https://github.com/googleinurl/Xpl-SHELLSHOCK-Ch3ck
     [CVE-2014-7169]
250. GitHub: https://github.com/meherarfaoui09/meher
     [CVE-2014-7169]
251. GitHub: https://github.com/renanvicente/puppet-shellshock
     [CVE-2014-7169: This module determine the vulnerability of a bash binary to the shellshock exploits ...]
252. GitHub: https://github.com/cj1324/CGIShell
     [CVE-2014-6271: Shellshock CVE-2014-6271 CGI Exploit, Use like Openssh via CGI]
253. GitHub: https://github.com/cved-sources/cve-2014-6271
     [CVE-2014-6271: Cve-2014-6271]
254. GitHub: https://github.com/huanlu/cve-2014-6271-huan-lu
     [CVE-2014-6271: Reading course]
255. GitHub: https://github.com/justzx2011/bash-up
     [CVE-2014-6271: A auto script to fix CVE-2014-6271 bash vulnerability]
256. GitHub: https://github.com/kelleykong/cve-2014-6271-mengjia-kong
     [CVE-2014-6271: System reading course]
257. GitHub: https://github.com/ryancnelson/patched-bash-4.3
     [CVE-2014-6271: Patched-bash-4.3 for CVE-2014-6271]
258. GitHub: https://github.com/themson/shellshock
     [CVE-2014-6271: Scripts associate with bourne shell EVN function parsing vulnerability CVE-2014-6271 ...]
259. GitHub: https://github.com/villadora/CVE-2014-6271
     [CVE-2014-6271: Scaner for cve-2014-6271]
260. GitHub: https://github.com/wenyu1999/bash-shellshock
     [CVE-2014-6271: Cve-2014-6271]
261. GitHub: https://github.com/zalalov/CVE-2014-6271
     [CVE-2014-6271: Shellshock POC | CVE-2014-6271 | cgi-bin reverse shell]

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

---

CVSS V2 Vector [?]: AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Base Score:	10.0 (High)
Impact Subscore:	10.0
Exploitability Subscore:	10.0
CVSS Temporal Score:	NA (None)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	10.0 (High)

CVSS V3 Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS Base Score:	9.8 (Critical)
Impact Subscore:	5.9
Exploitability Subscore:	3.9
CVSS Temporal Score:	NA (None)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	9.8 (Critical)

STIG Severity [?]: I
STIG Risk Rating: High

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Plugin Source

---

This is the freebsd_pkg_71ad81da441411e4a33e3c970e169bc2.nasl nessus plugin source code. This script is Copyright (C) 2014-2022 and is owned by Tenable, Inc. or an Affiliate thereof.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2020 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(77836);
  script_version("1.20");
  script_set_attribute(attribute:"plugin_modification_date", value:"2022/01/31");

  script_cve_id("CVE-2014-6271", "CVE-2014-7169");
  script_xref(name:"IAVA", value:"2014-A-0142");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/07/28");

  script_name(english:"FreeBSD : bash -- remote code execution vulnerability (71ad81da-4414-11e4-a33e-3c970e169bc2) (Shellshock)");

  script_set_attribute(attribute:"synopsis", value:
"The remote FreeBSD host is missing one or more security-related
updates.");
  script_set_attribute(attribute:"description", value:
"Chet Ramey reports :

Under certain circumstances, bash will execute user code while
processing the environment for exported function definitions.

The original fix released for CVE-2014-6271 was not adequate. A
similar vulnerability was discovered and tagged as CVE-2014-7169.");
  # https://securityblog.redhat.com/2014/09/24/bash-specially-crafted-environment-variables-code-injection-attack/
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?dacf7829");
  script_set_attribute(attribute:"see_also", value:"https://lists.gnu.org/archive/html/bug-bash/2014-09/msg00081.html");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/oss-sec/2014/q3/690");
  # https://vuxml.freebsd.org/freebsd/71ad81da-4414-11e4-a33e-3c970e169bc2.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1ec4245a");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Qmail SMTP Bash Environment Variable Injection (Shellshock)');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"in_the_news", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/09/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/09/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/09/25");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:bash");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:bash-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:linux_base-c6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"FreeBSD Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2014-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"bash>3.0<=3.0.17")) flag++;
if (pkg_test(save_report:TRUE, pkg:"bash>3.1<=3.1.18")) flag++;
if (pkg_test(save_report:TRUE, pkg:"bash>3.2<=3.2.52")) flag++;
if (pkg_test(save_report:TRUE, pkg:"bash>4.0<=4.0.39")) flag++;
if (pkg_test(save_report:TRUE, pkg:"bash>4.1<=4.1.12")) flag++;
if (pkg_test(save_report:TRUE, pkg:"bash>4.2<=4.2.48")) flag++;
if (pkg_test(save_report:TRUE, pkg:"bash>4.3<4.3.25_1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"bash-static>3.0<=3.0.17")) flag++;
if (pkg_test(save_report:TRUE, pkg:"bash-static>3.1<=3.1.18")) flag++;
if (pkg_test(save_report:TRUE, pkg:"bash-static>3.2<=3.2.52")) flag++;
if (pkg_test(save_report:TRUE, pkg:"bash-static>4.0<=4.0.39")) flag++;
if (pkg_test(save_report:TRUE, pkg:"bash-static>4.1<=4.1.12")) flag++;
if (pkg_test(save_report:TRUE, pkg:"bash-static>4.2<=4.2.48")) flag++;
if (pkg_test(save_report:TRUE, pkg:"bash-static>4.3<4.3.25_1")) flag++;
if (pkg_test(save_report:TRUE, pkg:"linux_base-c6<6.5_1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

The latest version of this script can be found in these locations depending on your platform:

• Linux / Unix:
  /opt/nessus/lib/nessus/plugins/freebsd_pkg_71ad81da441411e4a33e3c970e169bc2.nasl
• Windows:
  C:\ProgramData\Tenable\Nessus\nessus\plugins\freebsd_pkg_71ad81da441411e4a33e3c970e169bc2.nasl
• Mac OS X:
  /Library/Nessus/run/lib/nessus/plugins/freebsd_pkg_71ad81da441411e4a33e3c970e169bc2.nasl

Go back to menu.

How to Run

---

Here is how to run the FreeBSD : bash -- remote code execution vulnerability (71ad81da-4414-11e4-a33e-3c970e169bc2) (Shellshock) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

1. Click to start a New Scan.
2. Select Advanced Scan.
3. Navigate to the Plugins tab.
4. On the top right corner click to Disable All plugins.
5. On the left side table select FreeBSD Local Security Checks plugin family.
6. On the right side table select FreeBSD : bash -- remote code execution vulnerability (71ad81da-4414-11e4-a33e-3c970e169bc2) (Shellshock) plugin ID 77836.
7. Specify the target on the Settings tab and click to Save the scan.
8. Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl freebsd_pkg_71ad81da441411e4a33e3c970e169bc2.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a freebsd_pkg_71ad81da441411e4a33e3c970e169bc2.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - freebsd_pkg_71ad81da441411e4a33e3c970e169bc2.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state freebsd_pkg_71ad81da441411e4a33e3c970e169bc2.nasl -t <IP/HOST>

Go back to menu.

References

---

IAVA | Information Assurance Vulnerability Alert:

• 2014-A-0142

See also:

• https://www.tenable.com/plugins/nessus/77836
• https://lists.gnu.org/archive/html/bug-bash/2014-09/msg00081.html
• https://seclists.org/oss-sec/2014/q3/690
• http://www.nessus.org/u?1ec4245a
• http://www.nessus.org/u?dacf7829
• https://vulners.com/nessus/FREEBSD_PKG_71AD81DA441411E4A33E3C970E169BC2.NASL

Similar and related Nessus plugins:

• 78002 - FreeBSD : bash -- out-of-bounds memory access in parser (4a4e9f88-491c-11e4-ae2c-c80aa9043978)
• 78016 - FreeBSD : bash -- remote code execution (512d1301-49b9-11e4-ae2c-c80aa9043978) (Shellshock)

Version

---

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file freebsd_pkg_71ad81da441411e4a33e3c970e169bc2.nasl version 1.20. For more plugins, visit the Nessus Plugin Library.

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