CVE-2022-38657
📋 TL;DR
This vulnerability allows attackers to redirect users to malicious websites by exploiting the Feedback action on the manager page. It affects HCL software users who have access to the vulnerable manager interface. The open redirect can be used in phishing attacks to steal credentials or deliver malware.
💻 Affected Systems
- HCL software with vulnerable manager interface
📦 What is this software?
Hcl Leap by Hcltech
⚠️ Risk & Real-World Impact
Worst Case
Users are redirected to sophisticated phishing sites that steal credentials, install malware, or conduct further attacks against the organization.
Likely Case
Attackers use the redirect in phishing campaigns to harvest credentials or deliver malware to users who trust the legitimate domain.
If Mitigated
With proper web filtering and user awareness training, the impact is limited to failed phishing attempts.
🎯 Exploit Status
Open redirect vulnerabilities are commonly exploited in phishing campaigns. Requires user interaction to click a crafted link.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in provided references
Vendor Advisory: https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097201
Restart Required: Yes
Instructions:
1. Review vendor advisory KB0097201. 2. Apply the recommended patch from HCL. 3. Restart affected services. 4. Verify the fix by testing the Feedback action.
🔧 Temporary Workarounds
Disable Feedback Action
allTemporarily disable or restrict access to the Feedback action on manager pages
Configuration specific to HCL software - consult documentation
Implement URL Validation
allAdd server-side validation to reject redirects to external domains
Implementation depends on specific HCL software architecture
🧯 If You Can't Patch
- Implement web application firewall rules to block redirects to external domains from Feedback endpoints
- Deploy network filtering to block known malicious domains and monitor for suspicious redirect patterns
🔍 How to Verify
Check if Vulnerable:
Test the Feedback action by attempting to redirect to an external domain parameterCheck Version:
Check HCL software version using product-specific commands or administration interfaceVerify Fix Applied:
After patching, test that redirects to external domains are blocked or properly validated📡 Detection & Monitoring
Log Indicators:
- Unusual redirect patterns from Feedback endpoints
- Multiple failed redirect attempts
- Requests with external domain parameters in Feedback URLs
Network Indicators:
- Outbound connections to suspicious domains following Feedback page access
- Unusual redirect chains in HTTP traffic
SIEM Query:
web.url contains "feedback" AND web.url contains "http://" OR web.url contains "https://" AND NOT web.url contains "yourdomain.com"