Improper Authorization in Guacamole - CVE-2021-43999
Published: January 12, 2022
Vulnerability identifier: #VU59553
CSH Severity: Medium
CVSS v4: 5.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-43999
CWE-ID: CWE-285
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to bypass authorization process.
The vulnerability exist due to improper validation responses, received from a SAML identity provider. A remote user can assume identity of another Guacamole user, is SAML support is enabled.
Affected software
Guacamole
How to mitigate CVE-2021-43999
Install updates from vendor's website.
Guacamole - update to 1.4.0