Apache Struts 2.5.x < 2.5.8 URLValidator Form Field Handling Remote DoS

This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.

Synopsis :

The remote Windows host contains a web application that uses a Java
framework that is affected by a denial of service vulnerability.

Description :

The version of Apache Struts running on the remote Windows host is
2.5.x prior to 2.5.8. It is, therefore, potentially affected by a
denial of service vulnerability in the URLValidator class due to
improper handling of user-supplied input to the form field. An
unauthenticated, remote attacker can exploit this, via a specially
crafted URL, to overload server processes.

Note that Nessus has not tested for this issue but has instead relied
only on the application's self-reported version number.

See also :


Solution :

Upgrade to Apache Struts version 2.5.8 or later. Alternatively,
apply the workaround referenced in the vendor advisory.

Risk factor :

Medium / CVSS Base Score : 5.0
CVSS Temporal Score : 4.1
Public Exploit Available : true

Family: Windows

Nessus Plugin ID: 95887 ()

Bugtraq ID: 94657

CVE ID: CVE-2016-8738

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