CVE-2021-45330 is a critical vulnerability affecting Gitea versions up to 1.15.7. This vulnerability allows attackers to exploit improperly managed client-side cookies, which can lead to unauthorized privilege escalation. The session remains valid on the server side, enabling potential misuse of user privileges.
With a CVSS score of 9.8, this vulnerability is classified as critical, indicating its severe impact on confidentiality, integrity, and availability. Organizations using Gitea should recognize the urgency of this vulnerability, as it poses a significant risk for unauthorized access and control.
Currently, there are no public exploits confirmed for this vulnerability, reducing immediate risk; however, the possibility of exploitation remains a concern. Organizations should take proactive measures to patch this vulnerability promptly to prevent potential exploitation.
Organizations should prioritize patching immediately. The failure to address this vulnerability may expose sensitive data and critical systems to malicious actors.
Vulnerability Details
The vulnerability described in CVE-2021-45330 allows a malicious user to gain privileges due to client-side cookies not being deleted. The session remains valid on the server side for reuse, which can lead to unauthorized access. The CVSS 3.1 score is 9.8, representing critical severity.
The affected product is Gitea, with the vendor being Gitea. This vulnerability was published on February 9, 2022. It is classified under CWE-459, which refers to a failure to delete or invalidate session identifiers.
Technical Analysis
The root cause of this vulnerability stems from the improper management of cookies. Client-side cookies are not deleted effectively upon user logout, which allows an attacker to reuse a valid session on the server side. The attack vector is network-based, requiring no special privileges or user interaction to exploit.
The attack complexity is low, making it easier for attackers to exploit this vulnerability. The impacts include high confidentiality, integrity, and availability risks, as unauthorized users may gain access to sensitive operations and data.
Risk & Impact Analysis
The risk to organizations includes potential unauthorized access to sensitive information through the exploitation of this vulnerability. Attackers may leverage this issue to gain elevated privileges, leading to a broader compromise of systems and data.
Given the critical CVSS score, organizations should assess their deployment of Gitea and prioritize remediation efforts. The urgency of addressing this vulnerability is underscored by the potential blast radius, which could affect multiple systems if exploitation occurs.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of Gitea prior to 1.15.8 are affected by this vulnerability. Organizations should ensure they are running the latest version to mitigate the risk associated with this vulnerability.
Mitigation & Remediation
To remediate this vulnerability, organizations should upgrade to Gitea version 1.15.8 or later. If immediate patching is not possible, organizations should implement configuration changes to invalidate sessions upon logout and monitor for unusual activity.
For comprehensive guidance on security testing, organizations can consider engaging in penetration testing to validate security implementations.
Detection Guidance
Organizations should monitor log files for any unauthorized access attempts or unusual session activity. Behavioral anomalies around user sessions can indicate exploitation attempts.
AppSecure Threat Intelligence Insight
Long-term significance of CVE-2021-45330 highlights the importance of proper session management in web applications. This incident serves as a reminder for security teams to regularly audit session handling mechanisms.
Organizations should develop strategies for continuous security assessments and consider leveraging vulnerability management programs to detect and mitigate similar vulnerabilities in the future.
Furthermore, security teams should stay informed about emerging threats and best practices through resources like penetration testing methodologies to strengthen their defenses against future vulnerabilities.
In summary, CVE-2021-45330 serves as a critical reminder of the need for robust session management and the importance of ongoing security vigilance.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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