PT-2011-2803 · Roy Marples · Dhcpcd

Published 2011-04-13 · Updated 2017-08-17 · CVE-2011-0996

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions dhcpcd versions prior to 5.2.12

Description The issue allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message.

Recommendations For versions prior to 5.2.12, update to version 5.2.12 or later to resolve the issue. As a temporary workaround, consider restricting the handling of hostnames from DHCP messages to minimize the risk of exploitation.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2011-0996

Affected Products

Dhcpcd

References · 9

• http://security.gentoo.org/glsa/glsa-201301-04.xml · Vendor Advisory
• http://roy.marples.name/projects/dhcpcd/changeset/c317b39786ac6c3a939dc711db7c78cf099859fd · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2011-0996 · Security Note
• http://secunia.com/advisories/44070 · Vendor Advisory
• https://exchange.xforce.ibmcloud.com/vulnerabilities/66641 · Note
• http://roy.marples.name/projects/dhcpcd/timeline · Note
• https://bugzilla.novell.com/show_bug.cgi?id=675052 · Note
• http://roy.marples.name/archives/dhcpcd-discuss/2011/0326.html · Note
• http://securityfocus.com/bid/47272 · Note