CVE-2024-49794
📋 TL;DR
IBM ApplinX 11.1 contains a cross-site request forgery (CSRF) vulnerability that allows attackers to trick authenticated users into performing unauthorized actions on their behalf. This affects all users of IBM ApplinX 11.1 who access the application through a web browser.
💻 Affected Systems
- IBM ApplinX
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
An attacker could perform administrative actions like creating new users, changing configurations, or accessing sensitive data by tricking an administrator into clicking a malicious link.
Likely Case
Attackers could modify user settings, change application configurations, or perform actions within the user's privilege level without their consent.
If Mitigated
With proper CSRF protections and user awareness, the risk is significantly reduced as legitimate requests would be validated and users would be cautious about clicking unknown links.
🎯 Exploit Status
Exploitation requires the victim to be authenticated and visit a malicious page while logged into ApplinX.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Apply the fix from IBM Security Bulletin 7182522
Vendor Advisory: https://www.ibm.com/support/pages/node/7182522
Restart Required: Yes
Instructions:
1. Review IBM Security Bulletin 7182522
2. Download the appropriate fix from IBM Fix Central
3. Apply the fix following IBM's installation instructions
4. Restart the ApplinX service
🔧 Temporary Workarounds
Implement CSRF Tokens
allAdd anti-CSRF tokens to all state-changing requests
SameSite Cookie Attribute
allSet SameSite=Strict or SameSite=Lax attributes on session cookies
🧯 If You Can't Patch
- Implement web application firewall (WAF) rules to detect CSRF patterns
- Educate users about the risks of clicking unknown links while authenticated
🔍 How to Verify
Check if Vulnerable:
Check if your ApplinX version is 11.1 and review the IBM Security Bulletin for specific vulnerable componentsCheck Version:
Check the ApplinX administration console or configuration files for version informationVerify Fix Applied:
Verify that anti-CSRF tokens are present in all forms and state-changing requests after applying the patch📡 Detection & Monitoring
Log Indicators:
- Multiple state-changing requests from same user with different referrers
- Unusual administrative actions from regular users
Network Indicators:
- Requests with missing or invalid CSRF tokens
- Requests with external referrers performing privileged actions
SIEM Query:
source="applinx" AND (action="create" OR action="modify" OR action="delete") AND referrer NOT CONTAINS "yourdomain.com"