Apache 2.2 < 2.2.20 Multiple Vulnerabilities

high Nessus Network Monitor Plugin ID 6021

Synopsis

The remote web server is vulnerable to a denial of service attack.

Description

Versions of Apache 2.2 earlier than 2.2.20 are potentially affected by a denial of service vulnerability. Making a series of HTTP requests with overlapping ranges in the Range or Request-Range request headers can result in memory and CPU exhaustion. A remote, unauthenticated attacker could exploit this flaw to make the system unresponsive.

Solution

Upgrade to Apache version 2.2.20 or later or use one of the workarounds in Apache's advisories for CVE-2011-3192.

Plugin Details

Severity: High

ID: 6021

Family: Web Servers

Published: 8/25/2011

Updated: 3/6/2019

Nessus ID: 55976

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.4

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

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7

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:F/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:apache:http_server

Patch Publication Date: 8/25/2011

Vulnerability Publication Date: 8/19/2011

Reference Information

CVE: CVE-2011-3192

BID: 49303

Detections

Analytics