CVE-2015-8023

Medium

Description

The server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin in strongSwan 4.2.12 through 5.x before 5.3.4 does not properly validate local state, which allows remote attackers to bypass authentication via an empty Success message in response to an initial Challenge message.

SeverityMedium
CVSS5.0
Exploit probability—
ProductStrongswan
PublishedNov 18, 2015
First seenNov 18, 2015

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
strongswan strongswan4.2.12, 4.2.13, 4.2.14, 4.2.15, 4.2.16, 4.3.0, 4.3.1, 4.3.2, 4.3.3, 4.3.4, 4.3.5, 4.3.6, 4.3.7, 4.4.0, 4.4.1, 4.5.0, 4.5.1, 4.5.2, 4.5.3, 4.6.0, 4.6.1, 4.6.2, 4.6.3, 4.6.4, 5.0.0, 5.0.1, 5.0.2, 5.0.3, 5.0.4, 5.1.0, 5.1.1, 5.1.2, 5.1.3, 5.2.0, 5.2.1, 5.2.2, 5.2.3, 5.3.0, 5.3.1, 5.3.2, 5.3.3—
canonical ubuntu_linux14.04, 15.04, 15.10—

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