CVE Vulnerability

CVE-2018-7644

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.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

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://simplesamlphp.org/security/201802-01 Vendor Advisory
Configurations

Configuration 1

cpe:2.3:a:simplesamlphp:simplesamlphp:*:*:*:*:*:*:*:*
Information

Published : 2018-03-05 02:29

Updated : 2019-10-03 12:03

NVD link : CVE-2018-7644

Mitre link : CVE-2018-7644

Products Affected
No products.
CWE
CWE-347

Improper Verification of Cryptographic Signature