Buffer overflow in Team Foundation Server and Azure DevOps Server - CVE-2020-0758
Published: March 10, 2020
Vulnerability identifier: #VU25867
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-0758
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Team Foundation Server
Azure DevOps Server
Team Foundation Server
Azure DevOps Server
Detailed vulnerability description
The vulnerability allows a remote user to escalate privileges on the system.
The vulnerability exists due to a boundary error when Azure DevOps Server and Team Foundation Services improperly handle pipeline job tokens. A remote user can swap the short-term token for a long-term one, use a specially crafted application to trigger memory corruption and gain elevated privileges on the target system.
How to mitigate CVE-2020-0758
Install update from vendor's website.