CVE-2024-6832: Account Lockout Failure via Secondary User Store Inaccessibility in Multiple WSO2 Products Allows Brute Force Attacks
The account locking mechanism fails to trigger when secondary user stores are inaccessible. The software does not maintain a consistent state for account locking if it cannot reach all configured user stores, allowing an attacker to repeatedly attempt authentication with invalid credentials without triggering the lockout mechanism for users within active stores.
When the account locking mechanism is bypassed due to the inaccessibility of secondary user stores, users in accessible user stores are left vulnerable to brute force attacks. A malicious actor can exploit this by attempting numerous invalid password combinations against a user account without the expected account lockout consequence.
Security readout for executives and security teams
Plain-English summary
A failure in WSO2 account-locking can leave valid user accounts exposed to repeated password guessing when a configured secondary user store becomes unreachable. The attacker may continue trying passwords without the expected lockout. Successful guessing could disclose information accessible through the compromised account, but exploitation requires the specific multi-store failure condition.
Executive priority
Prioritize prompt assessment for internet-facing WSO2 identity or API environments using multiple user stores. This is not evidence of an emergency or active campaign, but compromised credentials could expose sensitive data. Escalate remediation if lockout fails during store outages or if suspicious authentication activity coincides with connectivity problems.
Technical view
When a secondary user store is inaccessible, lockout state is not maintained consistently across configured stores. Remote, unauthenticated attackers may repeatedly submit invalid credentials against users in still-accessible stores. CVSS 3.1 is 5.9: network-accessible, high complexity, no privileges or interaction, with potentially high confidentiality impact but no stated integrity or availability impact.
Likely exposure
Exposure requires WSO2 authentication with multiple configured user stores, account locking enabled, and at least one secondary store becoming inaccessible. The supplied product records are ambiguous: most list default status as unaffected, while the Carbon User Manager Kernel package has unknown default status. Confirm exact versions and dependency mappings with WSO2.
Exploitation context
The source bundle does not identify public exploitation, proof-of-concept availability, or observed attacks, and the CVE is not listed as KEV. Exploitation is condition-dependent because an attacker needs the secondary-store outage while targeting an account in an accessible store. Internet-facing authentication increases practical exposure.
Researcher notes
CWE-693 describes a protection-mechanism failure. The affected-data representation is insufficient for precise release conclusions: product entries default to unaffected, while org.wso2.carbon:org.wso2.carbon.user.core lists several versions with unknown default status. Treat vendor confirmation and dependency inspection as necessary before declaring exposure or remediation complete.
Mitigation direction
Review the WSO2 advisory and obtain vendor-confirmed remediation for each deployed product and component version.
Maintain reliable connectivity and monitoring for every configured secondary user store.
Use supported MFA and authentication rate controls as compensating protections where available.
Alert on sustained authentication failures, especially during user-store connectivity incidents.
Validation and detection
Inventory WSO2 products, versions, and the org.wso2.carbon.user.core dependency version.
Document all primary and secondary user stores and verify their current reachability.
Confirm with WSO2 whether each exact deployment combination is affected.
Safely test lockout behavior during simulated secondary-store failure in a controlled non-production environment.
Review authentication and user-store availability logs for correlated failures and repeated password attempts.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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cwe · low confidence lookup
CWE-693: Exact CWE lookup
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The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
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CWE-693 · source CWE mapping
Protection Mechanism Failure
Protection Mechanism Failure represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.