CVE-2024-41784
📋 TL;DR
CVE-2024-41784 is a path traversal vulnerability in IBM Sterling Secure Proxy that allows remote attackers to read arbitrary files on the system by sending specially crafted URL requests containing 'dot dot dot' sequences. This affects organizations using vulnerable versions of IBM Sterling Secure Proxy, potentially exposing sensitive configuration files, credentials, or system data.
💻 Affected Systems
- IBM Sterling Secure Proxy
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through reading sensitive files like configuration files containing credentials, SSH keys, or database passwords, leading to lateral movement and data exfiltration.
Likely Case
Unauthorized access to sensitive configuration files, potentially exposing credentials, API keys, or other confidential data stored in accessible file paths.
If Mitigated
Limited impact if file system permissions restrict access to sensitive files and network access controls prevent exploitation attempts.
🎯 Exploit Status
Exploitation requires sending specially crafted HTTP requests but does not require authentication.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply interim fix or upgrade to version 6.1.0.1 or later
Vendor Advisory: https://www.ibm.com/support/pages/node/7173631
Restart Required: Yes
Instructions:
1. Download the interim fix from IBM Fix Central. 2. Apply the fix according to IBM documentation. 3. Restart the Sterling Secure Proxy service. 4. Verify the fix is applied.
🔧 Temporary Workarounds
Network Access Restriction
allRestrict network access to Sterling Secure Proxy to only trusted IP addresses and networks.
Web Application Firewall Rules
allConfigure WAF rules to block requests containing '...' sequences or unusual path traversal patterns.
🧯 If You Can't Patch
- Implement strict network segmentation and firewall rules to limit access to Sterling Secure Proxy instances.
- Deploy web application firewall with rules specifically blocking path traversal patterns and monitor for exploitation attempts.
🔍 How to Verify
Check if Vulnerable:
Check the Sterling Secure Proxy version via administrative interface or configuration files. If version is 6.0.0.0-6.0.0.3 or 6.1.0.0, the system is vulnerable.Check Version:
Check the version in the Sterling Secure Proxy administrative console or configuration files (specific command varies by deployment).Verify Fix Applied:
After applying patch, verify the version shows as patched (6.1.0.1 or later) and test with controlled path traversal attempts that should be blocked.📡 Detection & Monitoring
Log Indicators:
- HTTP requests containing '...' sequences in URLs
- Unusual file access patterns from web requests
- Failed attempts to access restricted directories
Network Indicators:
- HTTP GET requests with unusual path traversal patterns
- Multiple requests attempting to access system directories
SIEM Query:
web.url:*...* AND (dst.port:443 OR dst.port:80) AND dst.ip:[STERLING_PROXY_IP]