CVE-2022-24414
📋 TL;DR
Dell EMC CloudLink versions 7.1.3 and earlier expose authentication tokens in GET request URLs, which can be logged by reverse proxies and servers. Attackers who obtain these tokens can potentially access the CloudLink server. This affects all deployments using vulnerable CloudLink versions.
💻 Affected Systems
- Dell EMC CloudLink
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain full administrative access to CloudLink server, allowing data theft, configuration changes, and potential lateral movement to connected systems.
Likely Case
Unauthorized access to CloudLink management interface leading to data exposure and potential privilege escalation.
If Mitigated
Limited impact with proper logging monitoring and network segmentation, though token exposure still presents credential leakage risk.
🎯 Exploit Status
Exploitation requires obtaining exposed tokens from logs or proxy caches, but token usage is straightforward once obtained.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 7.1.4 and later
Vendor Advisory: https://www.dell.com/support/kbdoc/en-us/000197425/dsa-2022-064-dell-emc-cloudlink-security-update-for-security-vulnerabilities
Restart Required: Yes
Instructions:
1. Download CloudLink 7.1.4 or later from Dell support portal. 2. Backup current configuration. 3. Install the update following Dell's upgrade documentation. 4. Restart CloudLink services.
🔧 Temporary Workarounds
Configure reverse proxies to filter sensitive parameters
allConfigure reverse proxies to strip or mask authentication tokens from GET request logs
# Configuration depends on proxy software (nginx, Apache, etc.)
Implement POST-only authentication
allModify applications to use POST requests instead of GET for authentication endpoints
# Application-specific implementation required
🧯 If You Can't Patch
- Implement strict access controls and network segmentation to limit CloudLink server exposure
- Enable comprehensive logging and monitoring for unauthorized access attempts using stolen tokens
🔍 How to Verify
Check if Vulnerable:
Check CloudLink version via web interface or command line. Versions 7.1.3 and earlier are vulnerable.Check Version:
cloudlink --version or check web interface administration panelVerify Fix Applied:
Verify installation of CloudLink 7.1.4 or later and confirm authentication tokens are no longer transmitted via GET parameters.📡 Detection & Monitoring
Log Indicators:
- GET requests containing 'auth_token', 'token', or similar parameters in URL
- Unauthorized access attempts from unexpected IP addresses
Network Indicators:
- Authentication tokens visible in URL parameters of HTTP traffic
- Unexpected authentication requests to CloudLink endpoints
SIEM Query:
source="cloudlink" AND (url="*token=*" OR url="*auth*=*")