Web Server HTTP User-Agent Header Handling Remote Overflow

high Nessus Plugin ID 11069

Synopsis

The remote host is running a web server with a remote buffer overflow vulnerability.

Description

It was possible to kill the web server by sending an invalid GET request with a long User-Agent field. A remote attacker may exploit this vulnerability to make the web server crash continually or possibly execute arbitrary code.

Solution

Upgrade your software or protect it with a filtering reverse proxy.

Plugin Details

Severity: High

ID: 11069

File Name: www_too_long_useragent.nasl

Version: 1.34

Type: remote

Family: Web Servers

Published: 8/13/2002

Updated: 11/15/2018

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

Vulnerability Information

Required KB Items: Settings/ParanoidReport

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 10/18/2001

Reference Information

CVE: CVE-2001-0836

BID: 3443, 3449

Detections

Analytics