Helix RealServer Remote Integer Handling DoS

High Nessus Network Monitor Plugin ID 2357

Synopsis

The remote host is vulnerable to a Denial of Service (DoS) attack.

Description

RealServer versions 9.0.4.958 and prior as well as 10.3.1.716 and prior are vulnerable to a remote Denial of Service (DoS) attack when they are presented with an invalid (negative) integer for the Content-Length field. An attacker exploiting this flaw would need to be able to connect to the RealServer (default port 554) and issue a malformed request. A successful attack would consume large amounts of memory on the RealServer, eventually ending in the unavailability of the server.

Solution

Upgrade to version 9.0.4.960, 10.3.1.718 or higher.

See Also

http://www.service.real.com/help/faq/security/security100704.html

Plugin Details

Severity: High

ID: 2357

Family: Web Servers

Published: 2004/10/07

Modified: 2016/02/05

Risk Information

Risk Factor: High

CVSSv2

Base Score: 7.8

Temporal Score: 7.8

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

Temporal Vector: CVSS2#E:H/RL:U/RC:C

CVSSv3

Base Score: 7.5

Temporal Score: 7.5

Vector: CVSS3#AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS3#E:H/RL:U/RC:C

Reference Information

CVE: CVE-2004-0774

BID: 11352