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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/simplesamlphp/xml-security/commit/f509e3083dd7870cce5880c804b5122317287581	Patch
https://github.com/simplesamlphp/xml-security/security/advisories/GHSA-ww7x-3gxh-qm6r	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:simplesamlphp:saml2:5.0.0:alpha12::::::
	cpe:2.3:a:simplesamlphp:xml-security:1.6.11:::::::*

History

06 Dec 2023, 17:49

Type	Values Removed	Values Added
First Time		Simplesamlphp saml2 Simplesamlphp Simplesamlphp xml-security
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 7.5
CPE		cpe:2.3:a:simplesamlphp:saml2:5.0.0:alpha12:::::: cpe:2.3:a:simplesamlphp:xml-security:1.6.11:::::::*
References	~~() https://github.com/simplesamlphp/xml-security/security/advisories/GHSA-ww7x-3gxh-qm6r -~~	() https://github.com/simplesamlphp/xml-security/security/advisories/GHSA-ww7x-3gxh-qm6r - Exploit, Vendor Advisory
References	~~() https://github.com/simplesamlphp/xml-security/commit/f509e3083dd7870cce5880c804b5122317287581 -~~	() https://github.com/simplesamlphp/xml-security/commit/f509e3083dd7870cce5880c804b5122317287581 - Patch

30 Nov 2023, 06:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2023-11-30 06:15

Updated : 2023-12-10 15:26

NVD link : CVE-2023-49087

Mitre link : CVE-2023-49087

CVE.ORG link : CVE-2023-49087

JSON object : View

Products Affected

simplesamlphp

xml-security
saml2

CWE

CWE-345

Insufficient Verification of Data Authenticity

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