CVE-2024-12905 is classified as a high-severity vulnerability with a CVSS score of 7.5. This vulnerability allows improper link resolution before file access and improper limitation of a pathname to a restricted directory, commonly known as path traversal. It occurs when extracting a maliciously crafted tar file, leading to unauthorized file writes or overwrites outside the intended extraction directory. The issue is specifically associated with index.js in the tar-fs package.
The exploitation status of this vulnerability is significant, as it has been confirmed that known exploits are available. Organizations should prioritize patching immediately to prevent potential unauthorized access and data integrity issues.
The urgency for defenders is high, given the potential risks associated with this vulnerability. Organizations utilizing the tar-fs package should assess their exposure and take corrective action to mitigate the risks.
In summary, CVE-2024-12905 poses a high risk to organizations due to its ability to allow unauthorized file access. Immediate remediation efforts are essential to protect sensitive information and maintain system integrity.
Vulnerability Details
This vulnerability allows improper link resolution before file access ("Link Following") and improper limitation of a pathname to a restricted directory ("Path Traversal"). This vulnerability occurs when extracting a maliciously crafted tar file, which can result in unauthorized file writes or overwrites outside the intended extraction directory. The issue is associated with index.js in the tar-fs package. This issue affects tar-fs: from 0.0.0 before 1.16.4, from 2.0.0 before 2.1.2, from 3.0.0 before 3.0.8.
Technical Analysis
The root cause of this vulnerability lies in the improper handling of symbolic links and path traversal during the extraction of tar files. The attack vector is network-based, allowing attackers to exploit this vulnerability remotely. The attack complexity is low, as no special privileges or user interaction is required to exploit the vulnerability. The attack potentially impacts the integrity of the system, as unauthorized modifications to files can occur, while confidentiality and availability impacts are negligible.
Risk & Impact Analysis
Real-world deployment risk includes the potential for unauthorized file access and modification, which can lead to significant data integrity issues. Organizations using the tar-fs package should be particularly concerned about the blast radius, as the vulnerability can affect any system that relies on this package for file extraction. The urgency assessment based on the CVSS score indicates that organizations should address this vulnerability in their priority patch cycle.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Affected versions of the tar-fs package include: from 0.0.0 before 1.16.4, from 2.0.0 before 2.1.2, from 3.0.0 before 3.0.8. Organizations using these versions should take immediate action to upgrade or patch their systems.
Mitigation & Remediation
Organizations should prioritize patching to the latest version of the tar-fs package. If a patch is not available, consider implementing workarounds such as restricting access to tar file extraction processes and monitoring logs for unauthorized file access activities. Additionally, organizations can enhance security by applying configuration hardening techniques and implementing network controls to prevent potential exploitation of this vulnerability.
Detection Guidance
Monitoring for unusual file write operations and reviewing logs for anomalies related to the tar-fs package can help detect potential exploitation attempts. Organizations should also look for changes in file permissions and unexpected alterations in file contents.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2024-12905 lies in its demonstration of the risks associated with file extraction processes. This vulnerability highlights the need for security teams to implement robust input validation and sanitization measures. Organizations should also consider adopting a comprehensive penetration testing approach to identify and remediate similar vulnerabilities in their applications.
Security teams should remain vigilant about detecting patterns associated with path traversal vulnerabilities and ensure that proper security controls are in place to mitigate risks. Regular assessments of the security posture, including code reviews and automated security testing, can provide insights into potential vulnerabilities before they are exploited.
In conclusion, CVE-2024-12905 serves as a critical reminder for organizations to maintain vigilant security practices and take proactive measures to safeguard their systems against emerging vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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