CVE-2025-24806 affects Authelia, an open-source authentication and authorization server that provides two-factor authentication and single sign-on (SSO) for applications through a web portal. This vulnerability allows users to sign in via both username and email, leading to the regulation system treating these as separate login events. This effectively doubles the limitations of the regulation, especially if an attacker employs brute-force tactics to guess user passwords.
The impact of this vulnerability is particularly concerning as it creates an environment where there is no visible indication to the user of their regulation ban, whether through response times or API feedback. Consequently, it becomes challenging to discern whether a login failure is due to an incorrect username or password combination, or if a ban is blocking the attempt. This situation significantly complicates the detection of brute-force attempts.
While this vulnerability has a minimal impact on account security, the risk amplifies in scenarios devoid of two-factor authentication and when weak passwords are employed. A patch addressing this vulnerability has been issued for versions 4.38.19 and 4.39.0. Organizations should upgrade to these versions promptly.
For users unable to upgrade, it is advised to refrain from making significant modifications to the default settings that could result in shorter or less frequent regulation bans. Maintaining the default settings will help mitigate the potential for exploitation. Additionally, organizations should consider disabling the capability for users to log in via email addresses.
Given the CVSS score of 2.3, this vulnerability is classified as low severity. However, organizations should still approach this issue with due diligence to prevent possible account compromises.
Organizations should prioritize patching immediately.
Vulnerability Details
The vulnerability is classified as CVE-2025-24806, with a CVSS score of 2.3, placing it in the low severity category. This vulnerability exists in Authelia, which allows for dual login methods, resulting in doubled regulation limitations for login attempts.
Identified as CWE-307, this issue emphasizes the importance of proper authentication methods. The vulnerability was published on February 19, 2025, and has been assigned a deferred status, indicating it is not actively exploited at this time.
Technical Analysis
The root cause of this vulnerability lies in the system's dual login mechanism, which treats username and email logins as separate events. This design flaw leads to a doubling of the login regulation limitations, allowing for increased brute-force attack potential.
The attack vector is network-based, requiring low privileges to exploit, and does not necessitate user interaction. The attack complexity is rated as high, meaning that the exploitation is not trivial and requires specific conditions to be met.
Risk & Impact Analysis
Risk to organizations includes the potential for unauthorized access due to ineffective regulation of login attempts. Although the vulnerability has a low CVSS score, the implications of successful brute-force attacks can lead to account compromises, especially in environments lacking proper authentication mechanisms.
Organizations should consider their deployment context when assessing the risk associated with this vulnerability. The effectiveness of existing security measures, such as two-factor authentication, will play a critical role in mitigating potential risks.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The specific versions affected by this vulnerability are all versions prior to vendor patch, notably 4.38.19 and 4.39.0. Organizations should ensure they are running the latest versions to mitigate risks associated with this vulnerability.
Mitigation & Remediation
To address this vulnerability, organizations should apply the available patches to upgrade to versions 4.38.19 or 4.39.0. For those unable to upgrade, it is critical to maintain the default settings to ensure the integrity of the regulation system.
Additionally, organizations are encouraged to disable the ability for users to log in via email addresses, which can help minimize potential exploitation. For continuous security, organizations should consider engaging in continuous security testing to validate their security posture.
Detection Guidance
Organizations should monitor for any unusual login attempts that may indicate brute-force attacks. Additionally, logging mechanisms should be in place to capture failed login attempts, which can help detect potential exploitation of this vulnerability.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-24806 lies in its reflection of prevalent weaknesses in authentication mechanisms. As organizations increasingly rely on authentication servers, understanding the implications of dual login methods is vital. The ease with which attackers may exploit such vulnerabilities underscores the importance of robust authentication practices.
Security teams can learn from this incident by implementing stricter authentication measures and continuously evaluating their security frameworks. For more information about enhancing security practices, consider reviewing the penetration testing methodology and the various strategies to enhance security.
Furthermore, organizations should keep abreast of emerging trends in security vulnerabilities by consulting resources such as the vulnerability management program design, which provides insights into effective security measures.
Finally, the patterns represented by CVE-2025-24806 highlight the necessity for organizations to adopt a proactive stance in their security frameworks, ensuring that authentication mechanisms are resilient against such vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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