Analyzing CVE-2024-39408: Mitigating a CSRF Vulnerability in Adobe Commerce
Overview of CVE-2024-39408
On August 14, 2024, a Cross-Site Request Forgery (CSRF) vulnerability identified as CVE-2024-39408 was published. This vulnerability affects several versions of Adobe Commerce, including 2.4.7-p1, 2.4.6-p6, 2.4.5-p8, 2.4.4-p9, and earlier. The vulnerability allows an attacker to exploit the CSRF flaw by tricking a user into clicking a malicious link or visiting a compromised page, leading to unauthorized actions on behalf of the user.
The CVE was assigned by Adobe and has a medium severity with a CVSS v3.1 base score of 4.3. It is important to note that exploitation of this vulnerability requires user interaction, making it somewhat harder to exploit but still significant in terms of potential data integrity impacts.
Technical Details
The CVSS vector string for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N, translating to the following:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Scope: Unchanged
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: None
This CSRF vulnerability (CWE-352) involves an attacker bypassing security features through a purposely crafted request that takes advantage of authenticated sessions of victims.
Mitigation Strategies
To mitigate CVE-2024-39408, consider the following steps:
- Update Adobe Commerce: The most effective mitigation is to upgrade Adobe Commerce to a version that addresses this vulnerability. Refer to the official Adobe advisory for detailed update instructions: Adobe Security Bulletin APSB24-61.
- Implement Anti-CSRF Tokens: Use anti-CSRF tokens in web applications to ensure that all state-changing operations are accompanied by a secret token that an attacker cannot obtain.
- SameSite Cookie Attribute: Configure cookies with the SameSite attribute set to Strict or Lax to restrict how cookies are sent with cross-site requests.
- User Education: Educate users about the risks of clicking on suspicious links or opening attachments from unknown sources.
- Web Application Firewall (WAF): Use a WAF to detect and block malicious requests that exhibit CSRF patterns.
Conclusion
While CVE-2024-39408 represents a medium risk due to its requirement for user interaction and low complexity of attack mechanisms, it highlights the importance of proactive security measures in e-commerce platforms. Regular updates, secure coding practices, and user awareness can significantly reduce the risk of exploitation.
For further details and technical guidance, stay updated with Adobe’s security advisories and incorporate recommended fixes and patches promptly.
