FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

xmltooling -- remote resource access

Affected packages
xmltooling < 3.2.4


VuXML ID f7e9a1cc-0931-11ee-94b4-6cc21735f730
Discovery 2023-06-12
Entry 2023-06-12

Shibboleth consortium reports:

An updated version of the XMLTooling library that is part of the OpenSAML and Shibboleth Service Provider software is now available which corrects a server-side request forgery (SSRF) vulnerability.

Including certain legal but "malicious in intent" content in the KeyInfo element defined by the XML Signature standard will result in attempts by the SP's shibd process to dereference untrusted URLs.

While the content of the URL must be supplied within the message and does not include any SP internal state or dynamic content, there is at minimum a risk of denial of service, and the attack could be combined with others to create more serious vulnerabilities in the future.