CVE-2025-31702
📋 TL;DR
This vulnerability in certain Dahua embedded products allows attackers with normal user credentials to access admin-restricted data through specific HTTP requests. Attackers could tamper with admin passwords, leading to privilege escalation. Systems with only admin accounts are not affected.
💻 Affected Systems
- Dahua embedded products (specific models not detailed in advisory)
⚠️ 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
Complete system compromise through admin password tampering, allowing attacker full control over affected Dahua devices.
Likely Case
Unauthorized access to sensitive system files and potential privilege escalation to admin level.
If Mitigated
Limited impact if proper access controls and network segmentation are implemented.
🎯 Exploit Status
Requires attacker to have obtained normal user credentials and knowledge of specific HTTP request patterns.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Not specified in available reference
Vendor Advisory: https://www.dahuasecurity.com/aboutUs/trustedCenter/details/777
Restart Required: No
Instructions:
1. Check vendor advisory for specific affected products. 2. Apply latest firmware updates from Dahua. 3. Verify patch installation through version checking.
🔧 Temporary Workarounds
Restrict network access
allLimit device access to trusted networks only
Implement strong credential policies
allEnforce complex passwords and regular rotation for all user accounts
🧯 If You Can't Patch
- Segment affected devices on isolated network segments
- Implement strict access controls and monitor for unusual HTTP requests to admin-restricted endpoints
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against vendor advisory and test for unauthorized access to admin-restricted endpoints with normal user credentials.Check Version:
Check device web interface or CLI for firmware version informationVerify Fix Applied:
Verify firmware version is updated and test that normal users cannot access admin-restricted data through HTTP requests.📡 Detection & Monitoring
Log Indicators:
- HTTP requests to sensitive endpoints from non-admin user accounts
- Multiple failed authentication attempts followed by successful access to admin-restricted data
Network Indicators:
- Unusual HTTP traffic patterns to system-sensitive file endpoints
- Traffic from unexpected sources to admin-restricted URLs
SIEM Query:
source_ip=* AND (http_uri CONTAINS "/admin/" OR http_uri CONTAINS "sensitive") AND user_role="normal"