SB2019011603 - Multiple vulnerabilities in Team Foundation Server

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Information disclosure (CVE-ID: CVE-2019-0647)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to Team Foundation Server does not properly handle variables marked as secret. A remote authenticated attacker can create a task group with a task containing a secret variable and gain access to variables that belong to other users.

2) Cross-site scripting (CVE-ID: CVE-2019-0646)

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. 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.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0647
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0646