This vulnerability allows command injection through the activation scripts for a virtual environment in versions of virtualenv prior to 20.26.6. The issue arises because magic template strings are not quoted correctly when being replaced. If exploited, this flaw can permit attackers to execute arbitrary commands within the context of the virtual environment.
With a CVSS score of 7.8, this vulnerability is classified as high severity. The potential risk to organizations includes unauthorized command execution, which could lead to significant security breaches. Given the nature of the flaw, organizations that utilize virtualenv should be aware of the implications and take immediate action.
Currently, there are no known exploits in the wild for this vulnerability, but the potential for exploitation remains high. Organizations should prioritize patching immediately to prevent possible misuse of the flaw.
In summary, the urgency for defenders is clear: they must address this vulnerability promptly to mitigate risks associated with potential exploitation.
Vulnerability Details
The official description states: 'virtualenv before 20.26.6 allows command injection through the activation scripts for a virtual environment. Magic template strings are not quoted correctly when replacing.' This vulnerability falls under the categories of command injection (CWE-77) and improper quoting (CWE-78).
The CVSS score of 7.8 indicates high severity, with a local attack vector, low attack complexity, and low privileges required. The impacts on confidentiality, integrity, and availability are all rated as high. This classification underlines the critical importance of addressing this vulnerability.
Affected systems include all versions of virtualenv prior to the release of version 20.26.6, published on November 24, 2024.
Technical Analysis
The root cause of this vulnerability stems from improper handling of command strings in the activation scripts, allowing for command injection. The attack vector is local, meaning an attacker must have local access to the machine running the vulnerable virtual environment.
Given the low complexity of the attack and the minimal privileges required, even an unprivileged user could potentially exploit this vulnerability if they have access to the virtual environment's activation scripts.
User interaction is not required for this vulnerability, which raises the severity level as attackers may leverage it without needing any additional steps from a victim.
If exploited, the attacker could gain high levels of control over the system, impacting confidentiality, integrity, and availability. Organizations using virtualenv should be aware of the significant risks associated with this vulnerability.
Risk & Impact Analysis
The real-world risk posed by this vulnerability is significant, especially for organizations relying on virtualenv for environment isolation and dependency management. Attackers may leverage this vulnerability to execute arbitrary code, potentially leading to unauthorized data access or system compromise.
The blast radius could be considerable, particularly in environments where multiple applications depend on the same virtual environment, increasing the potential impact of an exploit.
Given the CVSS score of 7.8 and the current absence of known exploits, organizations should still treat this as a high priority due to the potential for future exploitation.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerable versions include all versions of virtualenv prior to 20.26.6. Organizations should ensure they update to this version or later to mitigate the risks associated with this vulnerability.
Mitigation & Remediation
Organizations should prioritize patching by upgrading to virtualenv version 20.26.6 or later to remediate this vulnerability. For those unable to upgrade immediately, consider implementing workarounds such as restricting access to the activation scripts and conducting thorough code reviews to identify potential injection points.
Additional measures include applying configuration hardening to limit the execution context of the scripts and setting up network controls to monitor and restrict unauthorized access to the affected environments.
Organizations should also engage in continuous security testing to validate the effectiveness of their remediation efforts and ensure that similar vulnerabilities do not exist in other parts of their environment.
For further guidance, organizations can refer to the penetration testing services offered by AppSecure.
Detection Guidance
Security teams should monitor logs for indicators of command injection attempts, such as unexpected command executions or error messages related to the activation scripts. Behavioral anomalies in the execution of virtual environments should also be scrutinized.
Additionally, organizations should maintain network signatures that can identify unusual patterns or attempts to exploit this vulnerability.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2024-53899 highlights the importance of proper input validation and quoting in scripting environments. This vulnerability exemplifies a common pattern where developers may overlook security implications during code generation.
Security teams should take this as a lesson to implement rigorous testing and code review practices that focus on security, particularly in environments where command execution is involved.
Moreover, organizations should adopt proactive measures to enhance their security posture, such as leveraging tools that can automatically detect and mitigate similar vulnerabilities in the future.
For deeper insights into security practices, organizations can refer to the following resources: penetration testing methodology, vulnerability management program, and security testing best practices that address similar security issues.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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