Vulnerability Monitor

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CVE-2023-49087

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.

Published

2023-11-30T06:15:47.173

Last Modified

2024-11-21T08:32:47.700

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.8 (MEDIUM)

Weaknesses

Type: Primary
CWE-345

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	simplesamlphp	saml2	5.0.0	Yes
Application	simplesamlphp	xml-security	1.6.11	Yes

References

https://github.com/simplesamlphp/xml-security/commit/f509e3083dd7870cce5880c804b5122317287581 Patch ([email protected])
https://github.com/simplesamlphp/xml-security/security/advisories/GHSA-ww7x-3gxh-qm6r Exploit, Vendor Advisory ([email protected])
https://github.com/simplesamlphp/xml-security/commit/f509e3083dd7870cce5880c804b5122317287581 Patch (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/simplesamlphp/xml-security/security/advisories/GHSA-ww7x-3gxh-qm6r Exploit, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)