CVE-2021-43999: Improper validation of SAML responses
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.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-43999?
CVE-2021-43999 is a vulnerability in Apache Guacamole 1.2.0 and 1.3.0 that allows a malicious user to assume the identity of another Guacamole user if SAML support is enabled and responses from a SAML identity provider are not properly validated.
What is the severity of CVE-2021-43999?
CVE-2021-43999 has a severity score of 8.8 (high).
How does CVE-2021-43999 affect Apache Guacamole?
CVE-2021-43999 affects Apache Guacamole versions 1.2.0 and 1.3.0.
How can the CVE-2021-43999 vulnerability be exploited?
The CVE-2021-43999 vulnerability can be exploited if SAML support is enabled and responses from a SAML identity provider are not properly validated.
Is there a fix available for CVE-2021-43999?
Yes, it is recommended to update to a patched version of Apache Guacamole to fix CVE-2021-43999.