Authentication Bypass: Forged Tokens Allow Access to Arbitrary Rooms
CVE-2021-39215

7.5HIGH

Key Information:

Vendor

Jitsi

Status
Jitsi-meet
Vendor
CVE Published:
15 September 2021

What is CVE-2021-39215?

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. This issue is fixed in Jitsi Meet 2.0.5963. There are no known workarounds aside from updating.

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Deploy the Patch

Affected Version(s)

jitsi-meet < 2.0.5963

References

https://github.com/jitsi/jitsi-meet/security/advisories/G...
x_refsource_CONFIRM
https://github.com/jitsi/jitsi-meet/pull/9319
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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