CVE-2020-12693 : Security Advisory and Response

Slurm 19.05.x before 19.05.7 and 20.02.x before 20.02.3, in the rare case where Message Aggregation is enabled, allows Authentication Bypass via an Alternate Path or Channel. A race condition allows a user to launch a process as an arbitrary user.

Understanding CVE-2020-12693

This CVE involves an authentication bypass vulnerability in Slurm versions 19.05.x and 20.02.x when Message Aggregation is enabled.

What is CVE-2020-12693?

CVE-2020-12693 is a security vulnerability in Slurm that allows an attacker to bypass authentication and launch a process as a different user due to a race condition.

The Impact of CVE-2020-12693

The impact of this vulnerability is significant as it can lead to unauthorized access and privilege escalation within affected systems.

Technical Details of CVE-2020-12693

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in Slurm versions 19.05.x and 20.02.x allows for an Authentication Bypass via an Alternate Path or Channel due to a race condition.

Affected Systems and Versions

Slurm 19.05.x before 19.05.7
Slurm 20.02.x before 20.02.3

Exploitation Mechanism

The exploitation of this vulnerability involves taking advantage of the race condition to launch a process as an arbitrary user.

Mitigation and Prevention

Protecting systems from CVE-2020-12693 is crucial to maintaining security.

Immediate Steps to Take

Update Slurm to version 19.05.7 or 20.02.3, where the vulnerability is patched.
Disable Message Aggregation if not essential for system operations.

Long-Term Security Practices

Regularly monitor for security updates and patches for Slurm.
Implement least privilege access controls to limit the impact of potential vulnerabilities.

Patching and Updates

Apply security patches promptly to ensure that known vulnerabilities are mitigated effectively.