Vulnerability CVE-2021-43999
Published: 2022-01-11

Description:
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.

Type:

CWE-287

 (Improper Authentication)

CVSS2 => (AV:N/AC:M/Au:S/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6/10
6.4/10
6.8/10
Exploit range
Attack complexity
Authentication
Remote
Medium
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Apache -> Guacamole 

 References:
https://lists.apache.org/thread/4dt9h5mo4o9rxlgxm3rp8wfqdtdjn2z9
http://www.openwall.com/lists/oss-security/2022/01/11/7
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