PT-2021-23784 · Jetbrains · Teamcity

Published 2021-11-08 · Updated 2021-12-01 · CVE-2021-43202

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions JetBrains TeamCity versions prior to 2021.1.3

Description The issue concerns the absence of the X-Frame-Options header in certain cases. This header is crucial for preventing clickjacking attacks by specifying whether a page can be iframed or not. Without this header, an attacker could potentially frame a page, leading to various security issues.

Recommendations For versions prior to 2021.1.3, update to version 2021.1.3 or later to resolve the issue. As a temporary workaround, consider configuring the server to include the X-Frame-Options header in responses to minimize the risk of exploitation.

Fix

Related Identifiers

CVE-2021-43202

Affected Products

Teamcity

References · 4

• https://osv.dev/vulnerability/CVE-2021-43202 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-43202 · Security Note
• https://blog.jetbrains.com/blog/2021/11/08/jetbrains-security-bulletin-q3-2021 · Vendor Advisory
• https://t.me/cibsecurity/33094 · Telegram Post