CVE-2022-39997
📋 TL;DR
This vulnerability in Teldats Router RS123 and RS123w allows remote attackers to escalate privileges due to weak password requirements. Attackers can gain administrative access to the router by exploiting insufficient password complexity enforcement. Organizations using these specific router models are affected.
💻 Affected Systems
- Teldats Router RS123
- Teldats Router RS123w
⚠️ 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 compromise of router with administrative access, enabling traffic interception, network reconfiguration, and lateral movement into connected networks.
Likely Case
Unauthorized administrative access leading to network disruption, data interception, and potential credential harvesting from connected devices.
If Mitigated
Limited impact with strong network segmentation and monitoring, though router configuration could still be altered.
🎯 Exploit Status
Exploitation requires network access to router management interface but leverages weak password policies rather than authentication bypass.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown
Vendor Advisory: No vendor advisory found in provided references
Restart Required: No
Instructions:
1. Contact Teldats vendor for security updates
2. Check vendor website for firmware updates
3. Apply any available security patches
🔧 Temporary Workarounds
Enforce Strong Password Policy
allImplement and enforce strong password requirements for all router accounts
Network Segmentation
allRestrict access to router management interface to trusted networks only
🧯 If You Can't Patch
- Implement network access controls to restrict router management interface access
- Enable detailed logging and monitoring for authentication attempts and configuration changes
🔍 How to Verify
Check if Vulnerable:
Check if router model is RS123 or RS123w and test password policy enforcementCheck Version:
Check router web interface or CLI for firmware version informationVerify Fix Applied:
Verify strong password requirements are enforced and check for updated firmware version📡 Detection & Monitoring
Log Indicators:
- Multiple failed authentication attempts followed by successful login
- Configuration changes from unexpected sources
Network Indicators:
- Unusual traffic patterns from router management interface
- Authentication attempts from unexpected IP addresses
SIEM Query:
Authentication logs showing successful login after policy violation or from unusual source