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How the CVE Works:
The vulnerability in OpenBao’s Userpass and LDAP authentication systems allows attackers to bypass user lockout protections. The flaw stems from inconsistent alias handling between pre-flight and full login requests. During authentication, the system fails to properly track failed attempts due to mismatched user entity alias attributions. This enables brute-force attacks by evading lockout mechanisms that would otherwise block repeated failed logins.
DailyCVE Form:
Platform: OpenBao
Version: < v2.3.2
Vulnerability: Lockout bypass
Severity: Moderate
Date: Aug 8, 2025
Prediction: Patch by Aug 15, 2025
What Undercode Say:
Check OpenBao version openbao version Apply rate-limiting openbao write sys/quotas/rate-limit auth_rate limit=10 interval=1m
How Exploit:
- Repeatedly send auth requests with slight alias variations.
- Bypass lockout via pre-flight vs. full login mismatch.
Protection from this CVE:
- Upgrade to OpenBao v2.3.2.
- Enforce rate-limiting quotas.
Impact:
- Brute-force attacks feasible.
- Unauthorized access possible.
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Sources:
Reported By: github.com
Extra Source Hub:
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