CVE Vulnerability

CVE-2020-27604

BigBlueButton before 2.3 does not implement LibreOffice sandboxing. This might make it easier for remote authenticated users to read the API shared secret in the bigbluebutton.properties file. With the API shared secret, an attacker can (for example) use api/join to join an arbitrary meeting regardless of its guestPolicy setting.

4 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

6.5 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://www.golem.de/news/big-blue-button-das-grosse-blaue-sicherheitsrisiko-2010-151610.html Exploit Third Party Advisory
https://docs.bigbluebutton.org/dev/api.html Product
Configurations

Configuration 1

cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*
Information

Published : 2020-10-21 03:15

Updated : 2020-10-30 02:31

NVD link : CVE-2020-27604

Mitre link : CVE-2020-27604

Products Affected
No products.
CWE
CWE-116

Improper Encoding or Escaping of Output