CVE-2025-7777
📋 TL;DR
CVE-2025-7777 is an open redirect vulnerability in mirror-registry where improper host header sanitization allows attackers to redirect users to malicious domains. This enables phishing campaigns and credential theft attacks. Organizations using vulnerable mirror-registry versions are affected.
💻 Affected Systems
- mirror-registry
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Users redirected to convincing phishing sites that steal credentials, session tokens, or deliver malware, leading to full account compromise and lateral movement.
Likely Case
Targeted phishing campaigns against users, credential harvesting, and potential session hijacking through malicious redirects.
If Mitigated
Limited impact with proper user awareness training and network monitoring, though redirects may still occur.
🎯 Exploit Status
Requires ability to send crafted HTTP requests to the mirror-registry endpoint.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Red Hat advisory for specific version
Vendor Advisory: https://access.redhat.com/security/cve/CVE-2025-7777
Restart Required: No
Instructions:
1. Review Red Hat advisory. 2. Update mirror-registry to patched version. 3. Verify fix implementation.
🔧 Temporary Workarounds
Host Header Validation
allImplement web application firewall or reverse proxy rules to validate and sanitize host headers
🧯 If You Can't Patch
- Implement network segmentation to restrict access to mirror-registry
- Deploy WAF with host header validation rules
🔍 How to Verify
Check if Vulnerable:
Check mirror-registry version against Red Hat advisory; test with crafted host header redirect attemptsCheck Version:
mirror-registry --versionVerify Fix Applied:
Test with malicious host header values and verify proper sanitization and no redirects to external domains📡 Detection & Monitoring
Log Indicators:
- Unusual host header values in HTTP logs
- Redirects to external domains
Network Indicators:
- HTTP 3xx responses to unexpected domains
- Suspicious host header patterns
SIEM Query:
http.status_code:3* AND NOT destination.domain:internal-domain AND http.request.headers.host:*malicious*