Apache Struts 2.5.x < 2.5.13 URLValidator Form Field Handling Remote DoS (S2-044)

high Nessus Plugin ID 95887

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Synopsis

A web application running on the remote host uses a Java framework that is affected by multiple vulnerabilities

Description

The version of Apache Struts running on the remote host is 2.5.x prior to 2.5.13. It is, therefore, 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.

Solution

Upgrade to Apache Struts version 2.5.13 or later. Alternatively, apply the workaround referenced in the vendor advisory.

Plugin Details

Severity: High

ID: 95887

File Name: struts_2_5_8_win_local.nasl

Version: 1.15

Type: combined

Agent: windows, macosx, unix

Family: Misc.

Published: 12/15/2016

Updated: 2/18/2025

Configuration: Enable thorough checks

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2016-8738

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS Score Source: manual

Vulnerability Information

CPE: cpe:/a:apache:struts

Exploit Ease: No known exploits are available

Patch Publication Date: 11/23/2016

Vulnerability Publication Date: 11/23/2016

Reference Information

CVE: CVE-2016-8738

BID: 94657

Detections

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