CVE-2024-56201
CVE-2024-56201 is a critical vulnerability in the Jinja templating engine that allows for arbitrary Python code execution. The Jinja compiler bug, present in versions before 3.1.5, can be exploited when an attacker controls both the template content and filename, bypassing Jinja's sandbox. While the CVSS score is 0, the SOCRadar Vulnerability Risk Score (SVRS) is 30, indicating a moderate level of risk associated with potential exploitation in the wild. This vulnerability impacts applications that execute untrusted templates where the template author can control the filename. This means attackers could potentially inject malicious code into server-side templates, leading to server compromise if the attacker can name and populate the template. Update to Jinja 3.1.5 or later to mitigate this risk. The presence of the "In The Wild" tag should be taken seriously.
Description
CVE-2024-56201 is a vulnerability in Jinja, an extensible templating engine, affecting versions prior to 3.1.5. This vulnerability allows an attacker to execute arbitrary Python code when provided with control over both the content and filename of a template. The vulnerability is categorized as CWE-150, "Improper Input Validation," and allows for code execution even if Jinja's sandbox is enabled. The exploitation of this vulnerability requires an attacker to have control over both the filename and content of the template. This means that applications relying on Jinja and accepting untrusted templates from users could be at risk.
The SVRS for this vulnerability is 38, which although not above the critical threshold of 80, still signifies a notable vulnerability that requires attention. While the CVSS score of 8.8 indicates a high severity, the SVRS reflects the likelihood of exploitation and impact based on real-world data and intelligence.
Key Insights
- Exploitation Requires Control over Filename and Content: Successful exploitation requires the attacker to control both the filename and content of the Jinja template. This necessitates a deeper understanding of the application's architecture and how it handles user-supplied templates.
- Impact: Arbitrary Code Execution: The vulnerability allows attackers to execute arbitrary Python code, granting them significant control over the targeted system. This could potentially lead to data theft, system compromise, and even denial-of-service attacks.
- Sandboxing Ineffectiveness: The vulnerability bypasses Jinja's sandbox, making it a significant concern for applications relying on this feature for security.
- Wide Applicability of Jinja: Jinja is a widely used templating engine, increasing the potential impact of this vulnerability across various applications and systems.
Mitigation Strategies
- Upgrade to Jinja 3.1.5 or Later: The most effective mitigation is upgrading to Jinja version 3.1.5 or later, which includes the necessary patch for this vulnerability.
- Restrict User Input: Implement robust input validation and sanitization measures to prevent attackers from injecting malicious code through template filenames and content.
- Limit Template Sources: Restrict the sources of Jinja templates to trusted repositories or sources to minimize the potential for malicious code injection.
- Implement Security Best Practices: Implement security best practices like application firewalls (WAFs) and vulnerability scanning tools to detect and prevent potential attacks.
Additional Information
If users have any further queries regarding this incident, they can use the 'Ask to Analyst' feature, contact SOCRadar directly, or open a support ticket for more information if necessary.
Indicators of Compromise
Exploits
News
Social Media
Affected Software
References
CWE Details
CVE Radar
Real-time CVE Intelligence & Vulnerability Management Platform
CVE Radar provides comprehensive vulnerability intelligence by monitoring CVE databases, security advisories, and threat feeds. Get instant updates on new vulnerabilities, exploit details, and mitigation strategies specific to your assets.