#VU18506 Cross-site scripting in Team Foundation Server and Azure DevOps Server - CVE-2019-0872

Vulnerability identifier: #VU18506

Vulnerability risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-0872

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Team Foundation Server
Server applications / Application servers
Azure DevOps Server
Server applications / Application servers

Vendor: Microsoft

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data within the Test Plans functionality. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Team Foundation Server: 2015 Update 4 - 2018

Azure DevOps Server: 2019 Patch 1 - 2019.0.1 RC

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0872

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.