CVE-2020-0758 : Security Advisory and Response
Learn about CVE-2020-0758, an elevation of privilege vulnerability in Azure DevOps Server and Team Foundation Services. Find impacted systems & versions along with mitigation steps.
An elevation of privilege vulnerability exists when Azure DevOps Server and Team Foundation Services improperly handle pipeline job tokens, aka 'Azure DevOps Server and Team Foundation Services Elevation of Privilege Vulnerability'.
Understanding CVE-2020-0758
This CVE affects Microsoft's Team Foundation Server 2018, Team Foundation Server, Azure DevOps Server, Azure DevOps Server 2019, and Azure DevOps Server 2019 Update 1.1.
What is CVE-2020-0758?
CVE-2020-0758 is a vulnerability related to an elevation of privilege, where Azure DevOps Server and Team Foundation Services mishandle pipeline job tokens.
The Impact of CVE-2020-0758
This vulnerability could allow a malicious actor to elevate privileges within affected systems, potentially leading to unauthorized access and control.
Technical Details of CVE-2020-0758
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability arises from improper handling of pipeline job tokens.
Affected Systems and Versions
- Team Foundation Server 2018: Update 1.2, Update 3.2
- Team Foundation Server: 2017 Update 3.1
- Azure DevOps Server: 2019.0.1
- Azure DevOps Server 2019: Update 1
- Azure DevOps Server 2019 Update 1.1 (unspecified)
Exploitation Mechanism
Exploitation of this vulnerability involves manipulating pipeline job tokens in Azure DevOps Server and Team Foundation Services.
Mitigation and Prevention
Protecting systems from CVE-2020-0758 is essential to maintain security.
Immediate Steps to Take
- Apply security patches and updates provided by Microsoft promptly.
- Monitor system logs for any unusual or unauthorized activities.
- Restrict access permissions to critical systems.
Long-Term Security Practices
- Regularly review and update security configurations.
- Conduct security training for employees to recognize and report suspicious activities.
- Implement multi-factor authentication for enhanced account security.
Patching and Updates
Regularly check for security advisories and patches from Microsoft to address CVE-2020-0758.