PT-2021-22467 · Unknown · Jitsi Meet

Aaronkvanmeerten · Published 2021-09-15 · Updated 2021-09-28 · CVE-2021-39215

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Jitsi Meet versions prior to 2.0.5963

Description Jitsi Meet is an open source video conferencing application. In versions prior to 2.0.5963, a Prosody module allows the use of symmetrical algorithms to validate JSON web tokens. This means that tokens generated by arbitrary sources can be used to gain authorization to protected rooms.

Recommendations For versions prior to 2.0.5963, update to Jitsi Meet 2.0.5963 to resolve the issue. As a temporary workaround, consider restricting access to protected rooms until the update is applied.

Fix

Improper Authentication

Weakness Enumeration

CWE-287

Related Identifiers

CVE-2021-39215

GHSA-45FF-37JM-XJFX

Affected Products

Jitsi Meet

References · 7

• https://github.com/jitsi/jitsi-meet/pull/9319 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2021-39215 · Security Note
• https://osv.dev/vulnerability/CVE-2021-39215 · Vendor Advisory
• https://github.com/jitsi/jitsi-meet/security/advisories/GHSA-45ff-37jm-xjfx · Note
• https://t.me/cvenotify/20938 · Telegram Post
• https://t.me/cvenotify/21579 · Telegram Post
• https://t.me/cibsecurity/28947 · Telegram Post