Entr'ouvert Lasso 2.5.1/2.8.2 SAML Response g_assert_not_reached assertion

Summaryinfo

A vulnerability marked as critical has been reported in Entr'ouvert Lasso 2.5.1/2.8.2. This vulnerability affects the function g_assert_not_reached of the component SAML Response Handler. This manipulation causes assertion. The identification of this vulnerability is CVE-2025-46705. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Entr'ouvert Lasso 2.5.1/2.8.2. It has been declared as critical. Affected by this vulnerability is the function g_assert_not_reached of the component SAML Response Handler. The manipulation with an unknown input leads to a assertion vulnerability. The CWE definition for the vulnerability is CWE-617. The product contains an assert() or similar statement that can be triggered by an attacker, which leads to an application exit or other behavior that is more severe than necessary. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A denial of service vulnerability exists in the g_assert_not_reached functionality of Entr'ouvert Lasso 2.5.1 and 2.8.2. A specially crafted SAML assertion response can lead to a denial of service. An attacker can send a malformed SAML response to trigger this vulnerability.

It is possible to read the advisory at talosintelligence.com. This vulnerability is known as CVE-2025-46705 since 05/07/2025. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/08/2025).

The vulnerability scanner Nessus provides a plugin with the ID 274084 (Linux Distros Unpatched Vulnerability : CVE-2025-46705), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (274084). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• Entr'ouvert

Name

• Lasso

Version

• 2.5.1
• 2.8.2

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CPE 2.2info

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Be aware that VulDB is the high quality source for vulnerability data.

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