National Vulnerability Database (NVD) National Vulnerability Database (CVE-2006-1624)

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Last updated: Tue Aug 25 18:15:33 EDT 2009

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Vulnerability Summary for CVE-2006-1624

Original release date:04/05/2006

Last revised:09/05/2008

Source: US-CERT/NIST

Overview

The default configuration of syslogd in the Linux sysklogd package does not enable the -x (disable name lookups) option, which allows remote attackers to cause a denial of service (traffic amplification) via messages with spoofed source IP addresses.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:7.8 (HIGH) (AV:N/AC:L/Au:N/C:N/I:N/A:C) (legend)

Impact Subscore: 6.9

Exploitability Subscore: 10.0

CVSS Version 2 Metrics:

Access Vector: Network exploitable

Access Complexity: Low

Authentication: Not required to exploit

Impact Type:Allows disruption of serviceUnknown

Vendor Statments (disclaimer)

Official Statement from Mandriva (07/20/2006): Mandriva does not enable the -r option in syslogd per default, which prevents syslogd from listening for remote events. The -x option is also described in /etc/sysconfig/syslog for those who wish to enable the -r option.
Official Statement from Red Hat (12/06/2006): Red Hat does not consider this to be a security issue. Enabling the -r option is not suggested without the -x option which is clearly documented in the /etc/sysconfig/syslog configuration file.

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External Source: BUGTRAQ

Name: 20060402 RE: DoS-ing sysklogd?

Type: Advisory; Patch Information

Hyperlink:http://www.securityfocus.com/archive/1/archive/1/429739/100/0/threaded

External Source: BUGTRAQ

Name: 20060331 DoS-ing sysklogd?

Type: Advisory

Hyperlink:http://www.securityfocus.com/archive/1/archive/1/429618/100/0/threaded

External Source: XF

Name: sysklogd-sourceip-dos(25672)

Hyperlink:http://xforce.iss.net/xforce/xfdb/25672