CVE-2023-6153
📋 TL;DR
CVE-2023-6153 is an authentication bypass vulnerability in TeoSOFT's TeoBASE software that allows attackers to gain unauthorized access without valid credentials. This affects all TeoBASE versions through March 27, 2024. Organizations using vulnerable TeoBASE installations are at risk of unauthorized system access.
💻 Affected Systems
- TeoSOFT TeoBASE
⚠️ 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 with administrative access, data theft, ransomware deployment, and lateral movement to connected systems.
Likely Case
Unauthorized access to sensitive business data, configuration manipulation, and potential data exfiltration.
If Mitigated
Limited impact with proper network segmentation, strong monitoring, and compensating controls preventing lateral movement.
🎯 Exploit Status
Authentication bypass vulnerabilities typically have low exploitation complexity. No public exploit code is confirmed, but the nature of the vulnerability suggests straightforward exploitation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Unknown - vendor unresponsive
Vendor Advisory: None available
Restart Required: No
Instructions:
No official patch available. Consider migrating to alternative software or implementing strict compensating controls.
🔧 Temporary Workarounds
Network Isolation
allPlace TeoBASE behind strict firewall rules, allowing access only from specific trusted IP addresses.
Web Application Firewall
allDeploy a WAF with authentication bypass protection rules to block exploitation attempts.
🧯 If You Can't Patch
- Implement strict network segmentation to isolate TeoBASE from critical systems
- Enable detailed authentication logging and implement real-time alerting for failed/successful logins
🔍 How to Verify
Check if Vulnerable:
Check TeoBASE version against affected range (through 20240327). If version is 20240327 or earlier, system is vulnerable.Check Version:
Check TeoBASE administration interface or configuration files for version informationVerify Fix Applied:
No official fix available. Verify workarounds by testing authentication from unauthorized sources.📡 Detection & Monitoring
Log Indicators:
- Successful logins from unexpected IP addresses
- Multiple failed login attempts followed by success from same source
- Authentication events without corresponding credential validation
Network Indicators:
- Direct access to TeoBASE endpoints without prior authentication traffic
- Unusual traffic patterns to authentication endpoints
SIEM Query:
source="teobase" AND (event_type="auth_success" AND NOT preceding_event="auth_attempt")