CVE-2021-25939 : Exploit Details and Defense Strategies

ArangoDB, versions v3.7.0 through v3.9.0-alpha.1, allows downloading a Foxx service from a URL without enforcing proper request filtering, leading to a blind SSRF vulnerability.

Understanding CVE-2021-25939

This CVE affects ArangoDB versions v3.7.0 through v3.9.0-alpha.1 and can be exploited by a highly-privileged attacker to perform blind SSRF attacks.

What is CVE-2021-25939?

ArangoDB's feature of downloading Foxx service from a public URL lacks proper request filtering, enabling an attacker to abuse it for blind SSRF attacks.

The Impact of CVE-2021-25939

This vulnerability can be exploited by a highly-privileged attacker to perform blind SSRF attacks and send internal requests to localhost.

Technical Details of CVE-2021-25939

The vulnerability is scored with a CVSS base score of 2.7, with low attack complexity and vector as well as high privileges required for exploitation.

Vulnerability Description

ArangoDB versions v3.7.0 through v3.9.0-alpha.1 allow a feature to download a Foxx service from a URL without proper request filtering.

Affected Systems and Versions

ArangoDB versions v3.7.0 through v3.9.0-alpha.1 are affected by this vulnerability.

Exploitation Mechanism

A highly-privileged attacker can exploit this vulnerability to perform blind SSRF attacks and send internal requests to localhost.

Mitigation and Prevention

Users are advised to take immediate steps to secure their systems and follow long-term security practices.

Immediate Steps to Take

Upgrade to ArangoDB v3.9.0-beta.1 or later to mitigate the vulnerability.

Long-Term Security Practices

Enhance security measures by following best practices for secure software development and regular security audits.

Patching and Updates

Regularly apply patches and updates to ensure the security of your ArangoDB system.