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CVE-2023-49087

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CVE-2023-49087

Published: Nov 30, 2023

Modified: Aug 2, 2024

PUBLISHED

CVSS v3.1

6.8

MEDIUM

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.

VendorProductVersions

simplesamlphp

xml-security

affected
= 1.6.11
affected
= 5.0.0-alpha.12

Weaknesses (CWE)

CWE-345

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

High

Availability

None

References

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