CVE-2018-6331 Explained : Impact and Mitigation

A vulnerability in the Buck parser-cache command could allow an attacker to execute arbitrary code by manipulating serialized state data.

Understanding CVE-2018-6331

This CVE involves a deserialization vulnerability in the Buck parser-cache command, potentially leading to code execution.

What is CVE-2018-6331?

The Buck parser-cache command, responsible for loading and saving state data using Java serialized objects, is susceptible to code execution if manipulated maliciously.

The Impact of CVE-2018-6331

Exploiting this vulnerability could result in an attacker executing arbitrary code on systems running affected Buck versions.

Technical Details of CVE-2018-6331

This section provides technical insights into the vulnerability.

Vulnerability Description

The issue arises from deserializing maliciously crafted state information, allowing attackers to execute arbitrary code.

Affected Systems and Versions

Product: Buck
Vendor: Facebook
Affected Versions:
v2018.06.25.01 and earlier

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating serialized state data to trigger code execution.

Mitigation and Prevention

Protecting systems from CVE-2018-6331 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update Buck to version v2018.06.25.01 or later to mitigate the vulnerability.
Monitor for any suspicious activities related to deserialization.

Long-Term Security Practices

Implement input validation to prevent malicious data injection.
Regularly review and update deserialization processes to enhance security.
Educate developers on secure coding practices to prevent similar vulnerabilities.
Consider implementing runtime application self-protection (RASP) mechanisms.

Patching and Updates

Apply patches provided by Facebook for Buck to address the deserialization vulnerability.