OpenAM SAMLPOSTProfileServlet Signature Validation Flaw (v < 14.7.3)
CVE-2023-37471 Published on July 20, 2023

User impersonation using SAMLv1.x SSO in Open Access Management
Open Access Management (OpenAM) is an access management solution that includes Authentication, SSO, Authorization, Federation, Entitlements and Web Services Security. OpenAM up to version 14.7.2 does not properly validate the signature of SAML responses received as part of the SAMLv1.x Single Sign-On process. Attackers can use this fact to impersonate any OpenAM user, including the administrator, by sending a specially crafted SAML response to the SAMLPOSTProfileServlet servlet. This problem has been patched in OpenAM 14.7.3-SNAPSHOT and later. User unable to upgrade should comment servlet `SAMLPOSTProfileServlet` from their pom file. See the linked GHSA for details.

Github Repository NVD

Vulnerability Analysis

CVE-2023-37471 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
NONE

Weakness Type

What is an authentification Vulnerability?

When an actor claims to have a given identity, the software does not prove or insufficiently proves that the claim is correct.

CVE-2023-37471 has been classified to as an authentification vulnerability or weakness.


Products Associated with CVE-2023-37471

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Openidentityplatform Openam
 

Affected Versions

OpenIdentityPlatform OpenAM Version < 14.7.3 is affected by CVE-2023-37471

Vulnerable Packages

The following package name and versions may be associated with CVE-2023-37471

Package Manager Vulnerable Package Versions Fixed In
maven org.openidentityplatform.openam:openam-federation-library < 14.7.3 14.7.3

Exploit Probability

EPSS
1.61%
Percentile
82.09%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.