Azure DevOps Server and Team Foundation Server Remote Code Execution Vulnerability

2019-07-0907:00:00

Microsoft

msrc.microsoft.com

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

0.032 Low

EPSS

Percentile

91.2%

JSON

A remote code execution vulnerability exists when Azure DevOps Server and Team Foundation Server (TFS) improperly handle user input. An attacker who successfully exploited the vulnerability could execute code on the target server in the context of the DevOps or TFS service account.

To exploit the vulnerability, an attacker could submit a specially crafted file to an affected server. If anonymous access is allowed to projects on an affected server, the attacker would not require authentication.

The update corrects the way that DevOps Server and TFS process certain file types.