Fiche vulnérabilité
CVE-2023-49087 : faille élevée simplesamlphp saml2 (CVSS 7.5)
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.
En bref
- Sévérité
- Élevée (CVSS 7.5)
- Vecteur CVSS
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- Exploitation active
- Non signalée par la CISA
- Publication
- 30 nov. 2023
- Dernière mise à jour
- 17 juin 2026
Produits concernés
- simplesamlphp saml2
- simplesamlphp xml-security