CVE-2023-49087 – Validation of SignedInfo

https://notcve.org/view.php?id=CVE-2023-49087

30 Nov 2023 — xml-security is a library that implements XML signatures and encryption. Validation of an XML signature requires verification that the hash value of the related XML-document matches a specific DigestValue-value, but also that the cryptographic signature on the SignedInfo-tree (the one that contains the DigestValue) verifies and matches a trusted public key. If an attacker somehow (i.e. by exploiting a bug in PHP's canonicalization function) manages to manipulate the canonicalized version's DigestValue, it w... • https://github.com/simplesamlphp/xml-security/commit/f509e3083dd7870cce5880c804b5122317287581 • CWE-345: Insufficient Verification of Data Authenticity •