Skip to content

SimpleSAMLphp SAML2 spoof SAML responses

Critical severity GitHub Reviewed Published May 14, 2022 to the GitHub Advisory Database • Updated Apr 25, 2024

Package

composer simplesamlphp/saml2 (Composer)

Affected versions

>= 1.10, < 1.10.3
< 1.8.1
>= 1.9.0, < 1.9.1
>= 2.0, < 2.3.3

Patched versions

1.10.3
1.8.1
1.9.1
2.3.3

Description

The validateSignature method in the SAML2\Utils class in SimpleSAMLphp before 1.14.10 and simplesamlphp/saml2 library before 1.9.1, 1.10.x before 1.10.3, and 2.x before 2.3.3 allows remote attackers to spoof SAML responses or possibly cause a denial of service (memory consumption) by leveraging improper conversion of return values to boolean.

References

Published by the National Vulnerability Database Feb 17, 2017
Published to the GitHub Advisory Database May 14, 2022
Reviewed Apr 25, 2024
Last updated Apr 25, 2024

Severity

Critical
9.1
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Weaknesses

No CWEs

CVE ID

CVE-2016-9814

GHSA ID

GHSA-r8v4-7vwj-983x
Checking history
See something to contribute? Suggest improvements for this vulnerability.