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.

CVSS v3 7.5 HIGH
CVSS v2.0 5.0 MEDIUM

7.5^/10

CVSS v3 : HIGH

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:N/I:P/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://simplesamlphp.org/security/201802-01	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2018-03-05 14:29

Updated : 2023-12-10 12:30

NVD link : CVE-2018-7644

Mitre link : CVE-2018-7644

CVE.ORG link : CVE-2018-7644

JSON object : View

Products Affected

simplesamlphp

simplesamlphp

CWE

CWE-347

Improper Verification of Cryptographic Signature

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