CVE-2023-49087
- Reference to the description:
- Description:
- 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 would be possible to forge the signature. This issue has been patched in version 1.6.12 and 5.0.0-alpha.13.
- Last updated date:
- 12/06/2023
- Type:
- exploit
- Confidence:
- HIGH
- Date of publishing:
- 12/06/2023
- Reference url to background
https://github.com/simplesamlphp/xml-security/security/advisories/GHSA-ww7x-3gxh-qm6r