CVE-2021-43999 — HIGH (8.8)

Vulnerability 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.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apache	Guacamole	1.2.0

Related Weaknesses (CWE)

CWE-287

References

http://www.openwall.com/lists/oss-security/2022/01/11/7Mailing ListThird Party Advisory
https://lists.apache.org/thread/4dt9h5mo4o9rxlgxm3rp8wfqdtdjn2z9Mailing ListVendor Advisory
http://www.openwall.com/lists/oss-security/2022/01/11/7Mailing ListThird Party Advisory
https://lists.apache.org/thread/4dt9h5mo4o9rxlgxm3rp8wfqdtdjn2z9Mailing ListVendor Advisory

FAQ

What is CVE-2021-43999?

CVE-2021-43999 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 anothe...

How severe is CVE-2021-43999?

CVE-2021-43999 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-43999?

Check the references section above for vendor advisories and patch information. Affected products include: Apache Guacamole.