CVE-2021-45102 : Vulnerability Insights and Analysis

An issue was discovered in HTCondor 9.0.x before 9.0.4 and 9.1.x before 9.1.2 where authentication using a SciToken could grant unauthorized authorizations.

Understanding CVE-2021-45102

An overview of the vulnerability and its impact.

What is CVE-2021-45102?

CVE-2021-45102 relates to a vulnerability in HTCondor versions 9.0.x and 9.1.x allowing users to receive excessive authorizations during authentication with a SciToken.

The Impact of CVE-2021-45102

The vulnerability can lead to users being granted authorizations beyond the intended scope of the token, potentially compromising system security.

Technical Details of CVE-2021-45102

Exploring the technical aspects of the CVE.

Vulnerability Description

The issue in HTCondor versions 9.0.x and 9.1.x allows unauthorized access due to improper validation of user authorizations when using a SciToken for authentication.

Affected Systems and Versions

Versions affected: 9.0.x before 9.0.4 and 9.1.x before 9.1.2

Exploitation Mechanism

Potential exploitation involves leveraging the vulnerability to gain unauthorized access to HTCondor daemons through manipulation of SciTokens.

Mitigation and Prevention

Measures to address and prevent the CVE.

Immediate Steps to Take

Upgrade HTCondor to version 9.0.4 or 9.1.2 to mitigate the vulnerability.

Long-Term Security Practices

Regularly review and update authorization mechanisms in HTCondor.
Employ multi-factor authentication for enhanced security.

Patching and Updates

Stay informed about security updates from HTCondor and apply patches promptly to address known vulnerabilities.