Apache CloudStack: SAML Signature Exclusion
Vulnerability Description
The CloudStack SAML authentication (disabled by default) does not enforce signature check. In CloudStack environments where SAML authentication is enabled, an attacker that initiates CloudStack SAML single sign-on authentication can bypass SAML authentication by submitting a spoofed SAML response with no signature and known or guessed username and other user details of a SAML-enabled CloudStack user-account. In such environments, this can result in a complete compromise of the resources owned and/or accessible by a SAML enabled user-account. Affected users are recommended to disable the SAML authentication plugin by setting the "saml2.enabled" global setting to "false", or upgrade to version 4.18.2.2, 4.19.1.0 or later, which addresses this issue.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:
- Christian Gross of Netcloud AG
- Damon Smith of Apple Services Engineering Security
- Adam Pond of Apple Services Engineering Security
- Terry Thibault of Apple Services Engineering Security
References
- https://lists.apache.org/thread/5q06g8zvmhcw6w3tjr6r5prqdw6zckg3
- https://cloudstack.apache.org/blog/security-release-advisory-cve-2024-41107
- https://github.com/apache/cloudstack/issues/4519
- https://www.shapeblue.com/shapeblue-security-advisory-apache-cloudstack-cve-2024-41107
- http://www.openwall.com/lists/oss-security/2024/07/19/1
- http://www.openwall.com/lists/oss-security/2024/07/19/2
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