What is GHSA-923w-2xv2-7pr8?

GHSA-923w-2xv2-7pr8 is a security advisory published by GitHub Security Advisories with High severity. SimpleSAMLphp Improper Verification of Cryptographic Signature

Which CVE IDs does GHSA-923w-2xv2-7pr8 cover?

GHSA-923w-2xv2-7pr8 covers the following CVE IDs: CVE-2018-7644. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-923w-2xv2-7pr8?

GHSA-923w-2xv2-7pr8 has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

Which products are affected by GHSA-923w-2xv2-7pr8?

GHSA-923w-2xv2-7pr8 affects 3 products, including: composer/simplesamlphp/saml2:\u003c 1.10.5; composer/simplesamlphp/saml2:\u003e= 2.0, \u003c 2.3.7; composer/simplesamlphp/saml2:\u003e= 3.0, \u003c 3.1.3.

GHSA-923w-2xv2-7pr8HighCVSS 7.5

SimpleSAMLphp Improper Verification of Cryptographic Signature

Vendor

GitHub Security Advisories

Published

May 13, 2022

Last Modified

April 25, 2024

🔗 CVE IDs covered (1)

CVE-2018-7644 →

📋 Description

The XmlSecLibs library as used in the saml2 library in SimpleSAMLphp before 1.15.3 incorrectly verifies signatures on SAML assertions, allowing a remote attacker to construct a crafted SAML assertion on behalf of an Identity Provider that would pass as cryptographically valid, thereby allowing them to impersonate a user from that Identity Provider, aka a key confusion issue.

🎯 Affected products3

composer/simplesamlphp/saml2:< 1.10.5
composer/simplesamlphp/saml2:>= 2.0, < 2.3.7
composer/simplesamlphp/saml2:>= 3.0, < 3.1.3

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2018-7644
https://simplesamlphp.org/security/201802-01
https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/saml2/CVE-2018-7644.yaml
https://github.com/advisories/GHSA-923w-2xv2-7pr8