CVE Vulnerabilities

CVE-2021-43999

Improper Authentication

Published: Jan 11, 2022 | Modified: Nov 21, 2024
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
6 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu
MEDIUM

Apache Guacamole 1.2.0 and 1.3.0 do not properly validate responses received from a SAML identity provider. If SAML support is enabled, this may allow a malicious user to assume the identity of another Guacamole user.

Weakness

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Software

Name Vendor Start Version End Version
Guacamole Apache 1.2.0 (including) 1.2.0 (including)
Guacamole Apache 1.3.0 (including) 1.3.0 (including)
Guacamole-server Ubuntu bionic *
Guacamole-server Ubuntu hirsute *
Guacamole-server Ubuntu impish *
Guacamole-server Ubuntu kinetic *
Guacamole-server Ubuntu lunar *
Guacamole-server Ubuntu mantic *
Guacamole-server Ubuntu trusty *
Guacamole-server Ubuntu xenial *

Potential Mitigations

References