CVE-2023-4125
📋 TL;DR
CVE-2023-4125 is a weak password requirements vulnerability in the answerdev/answer software that allows attackers to brute-force user accounts due to insufficient password complexity enforcement. This affects all users running answer prior to version 1.1.0. Attackers can potentially compromise accounts through password guessing attacks.
💻 Affected Systems
- answerdev/answer
📦 What is this software?
Answer by Answer
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise through administrative account takeover, leading to data theft, privilege escalation, or service disruption.
Likely Case
Unauthorized access to user accounts, potential data exposure, and lateral movement within the application.
If Mitigated
Limited impact with strong network controls and monitoring, though weak passwords remain a risk factor.
🎯 Exploit Status
Exploitation requires authentication attempts but is trivial with password cracking tools. No public exploit code is known.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v1.1.0 and later
Vendor Advisory: https://github.com/answerdev/answer/commit/7d23b17cdbbefcd2e7b5c3150f0b5ec908dc835f
Restart Required: Yes
Instructions:
1. Backup your current installation. 2. Update to answer v1.1.0 or later via package manager or manual installation. 3. Restart the answer service. 4. Verify the update was successful.
🔧 Temporary Workarounds
Enforce Strong Password Policy
allImplement external password policy enforcement through LDAP/IAM or application configuration if available.
Enable Account Lockout
allConfigure account lockout after failed login attempts to prevent brute-force attacks.
🧯 If You Can't Patch
- Implement network-level controls like WAF rules to block brute-force attempts
- Enable multi-factor authentication if supported by the application
🔍 How to Verify
Check if Vulnerable:
Check the answer version in admin panel or configuration files. If version is below 1.1.0, the system is vulnerable.Check Version:
Check answer configuration file or admin interface for version informationVerify Fix Applied:
After updating, verify the version shows 1.1.0 or higher and test that password complexity requirements are enforced.📡 Detection & Monitoring
Log Indicators:
- Multiple failed login attempts from single IP
- Successful login after many failures
- Unusual login patterns
Network Indicators:
- High volume of authentication requests
- Traffic patterns consistent with brute-force tools
SIEM Query:
source="answer.log" AND ("failed login" OR "authentication failure") | stats count by src_ip, user | where count > 10