CVE-2021-39165 is a high-severity SQL injection vulnerability affecting Cachet, an open-source status page tool. This vulnerability allows attackers to exploit the `SearchableTrait#scopeSearch()` function in versions prior to and including 2.3.18. Importantly, attackers do not require authentication to access this flaw, enabling the potential exfiltration of sensitive data from the database, including administrator passwords and sessions.
The implications of this vulnerability are significant, as it exposes sensitive information that could lead to unauthorized access or additional attacks against the affected systems. Organizations utilizing Cachet should be particularly vigilant, given that the original repository is inactive, and the last stable version remains vulnerable.
Currently, there is no known public exploit in the Exploit Database; however, two proof-of-concept repositories exist on GitHub. Furthermore, the CVSS score for this vulnerability is 8.1, classified as high severity, indicating a critical need for immediate remediation.
Organizations should prioritize patching immediately to protect against potential exploitation. The risk to organizations includes unauthorized access to sensitive data, which could lead to further compromises.
Vulnerability Details
Cachet is an open source status page. With Cachet prior to and including 2.3.18, there is a SQL injection which is in the `SearchableTrait#scopeSearch()`. Attackers without authentication can utilize this vulnerability to exfiltrate sensitive data from the database such as administrator's password and session.
The CVSS score of this vulnerability is 8.1, indicating it falls within the high severity category. The vulnerability allows for significant confidentiality and integrity impacts, given its nature of allowing unauthorized access to sensitive information.
The vulnerability affects all versions of Cachet prior to 2.3.18. It was published on August 26, 2021, and is classified under CWE-89 (SQL Injection) and CWE-287 (Improper Authentication).
Technical Analysis
The root cause of CVE-2021-39165 lies in the improper handling of user input in the SQL query process, allowing attackers to manipulate queries and access sensitive data. The attack vector is network-based, with a low complexity of execution, meaning that attackers can exploit the vulnerability with minimal skill.
The vulnerability requires low privileges, as no authentication is necessary to exploit it. User interaction is not required, which significantly increases the risk of exploitation. The attack impacts confidentiality and integrity, as attackers may gain access to sensitive database information without any restrictions.
Risk & Impact Analysis
The risk to organizations includes potential unauthorized access to sensitive data that could lead to credential theft or further attacks. Given that the Cachet project is inactive, there may be limited support for patches, thereby increasing the urgency for organizations to address this vulnerability.
The blast radius of this vulnerability is significant, as any system using affected versions of Cachet could be compromised. Organizations should assess their exposure and prioritize remediation based on the critical nature of this vulnerability.
Given the CVSS score and the potential for exploitation, organizations are urged to upgrade to patched versions or implement mitigations in their security posture.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of Cachet are all versions prior to 2.3.18. Organizations using these versions should take immediate action to mitigate the risks associated with this vulnerability.
Mitigation & Remediation
Organizations should prioritize patching immediately. The recommended version to upgrade to is 2.3.19 or later, where this vulnerability has been addressed. If a patch is unavailable, consider implementing network controls to limit access to the application, and harden configurations to minimize potential attack vectors.
In addition, continuous monitoring for any abnormal behavior or access attempts should be enforced to detect any exploitation attempts proactively. Organizations can improve their security posture by engaging in penetration testing to identify and address similar vulnerabilities.
Detection Guidance
Organizations should monitor logs for unusual SQL query patterns that may indicate an attempt to exploit this vulnerability. Additionally, behavioral anomalies, such as unexpected access to sensitive data, should be flagged for investigation.
Network signatures that detect unauthorized access attempts can also be beneficial. System changes, especially those related to database access permissions, should be closely monitored.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2021-39165 lies in its demonstration of how even open-source tools can harbor serious vulnerabilities that may go unpatched due to inactive repositories. This highlights the importance of proactive security assessments in the software lifecycle.
This vulnerability represents a trend seen across various applications where SQL injection flaws remain prevalent. Security teams should prioritize strengthening input validation and sanitization practices to mitigate risks.
A strategic takeaway is to ensure regular security audits and engage in vulnerability management programs that include both automated and manual testing approaches.
Additionally, organizations should consider engaging in penetration testing methodology to continuously evaluate their security posture.
In conclusion, the CVE-2021-39165 vulnerability should serve as a reminder for organizations to maintain vigilance over their open-source components and ensure they are adequately secured.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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