Executive Summary

Summary
Title ISC DHCP dhclient stack buffer overflow
Informations
Name VU#410676 First vendor Publication 2009-07-14
Vendor VU-CERT Last vendor Modification 2009-07-16
Severity (Vendor) N/A Revision M

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 10 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Vulnerability Note VU#410676

ISC DHCP dhclient stack buffer overflow

Overview

The ISC DHCP dhclient application contains a stack buffer overflow, which may allow a remote, unauthenticated attacker to execute arbitrary code with root privileges.

I. Description

As described in RFC 2131, "The Dynamic Host Configuration Protocol (DHCP) provides a framework for passing configuration information to hosts on a TCP/IP network." ISC DHCP is a reference implementation of the DHCP protocol, including a DHCP server, client, and relay agent.

The ISC DHCP client code (dhclient) contains a stack buffer overflow in the script_write_params() method. dhclient fails to check the length of the server-supplied subnet-mask option before copying it into a buffer. According to ISC, the following versions are affected:

    DHCP 4.1 (all versions)
    DHCP 4.0 (all versions)
    DHCP 3.1 (all versions)
    DHCP 3.0 (all versions)
    DHCP 2.0 (all versions)

II. Impact

A rogue DHCP server may be able to execute arbitrary code with root privileges on a vulnerable client system.

III. Solution

Apply a patch or update from your vendor

For vendor-specific information regarding vulnerable status and patch availability, please see the Systems Affected section of this document.

Upgrade your version of DHCP

Upgrade your system as specified by your vendor. If you need to upgrade DHCP manually, according to ISC:

    Upgrade to 4.1.0p1, 4.0.1p1, or 3.1.2p1

    There are no fixes planned for DHCP 3.0 or DHCP 2.0, as those release trains have reached End-Of-Life.

Systems Affected

VendorStatusDate NotifiedDate Updated
3com, Inc.Unknown2009-06-232009-06-23
ACCESSUnknown2009-06-232009-06-23
Alcatel-LucentUnknown2009-06-232009-06-23
Apple Inc.Not Vulnerable2009-06-232009-06-24
AT&TUnknown2009-06-232009-06-23
Avaya, Inc.Unknown2009-06-232009-06-23
Barracuda NetworksUnknown2009-06-232009-06-23
Belkin, Inc.Unknown2009-06-232009-06-23
Borderware TechnologiesUnknown2009-06-232009-06-23
BroUnknown2009-06-232009-06-23
Charlotte's Web NetworksUnknown2009-06-232009-06-23
Check Point Software TechnologiesUnknown2009-06-232009-06-23
Cisco Systems, Inc.Unknown2009-06-232009-06-23
ClavisterUnknown2009-06-232009-06-23
Computer AssociatesUnknown2009-06-232009-06-23
Computer Associates eTrust Security ManagementNot Vulnerable2009-06-232009-06-25
Conectiva Inc.Unknown2009-06-232009-06-23
Cray Inc.Unknown2009-06-232009-06-23
D-Link Systems, Inc.Unknown2009-06-262009-06-26
Debian GNU/LinuxUnknown2009-06-232009-06-23
DragonFly BSD ProjectUnknown2009-06-232009-06-23
EMC CorporationUnknown2009-06-232009-06-23
Engarde Secure LinuxUnknown2009-06-232009-06-23
Enterasys NetworksUnknown2009-06-232009-06-23
EricssonUnknown2009-06-232009-06-23
eSoft, Inc.Unknown2009-06-232009-06-23
Extreme NetworksUnknown2009-06-232009-06-23
F5 Networks, Inc.Unknown2009-06-232009-06-23
Fedora ProjectUnknown2009-06-232009-06-23
Force10 Networks, Inc.Not Vulnerable2009-06-232009-07-14
Fortinet, Inc.Unknown2009-06-232009-06-23
Foundry Networks, Inc.Unknown2009-06-232009-06-23
FreeBSD, Inc.Unknown2009-06-232009-06-23
FujitsuUnknown2009-06-232009-06-23
Gentoo LinuxVulnerable2009-06-232009-07-14
Global Technology AssociatesUnknown2009-06-232009-06-23
Hewlett-Packard CompanyUnknown2009-06-232009-06-23
HitachiUnknown2009-06-232009-06-23
IBM CorporationUnknown2009-06-242009-06-24
IBM eServerUnknown2009-06-232009-06-23
InfobloxUnknown2009-06-232009-06-23
Intel CorporationUnknown2009-06-232009-06-23
Internet Security Systems, Inc.Vulnerable2009-06-232009-07-15
Internet Systems ConsortiumUnknown2009-06-242009-06-24
Internet Systems Consortium - DHCPUnknown2009-06-242009-06-24
IntotoUnknown2009-06-232009-06-23
IP FilterUnknown2009-06-232009-06-23
Juniper Networks, Inc.Unknown2009-06-232009-06-23
Luminous NetworksUnknown2009-06-232009-06-23
m0n0wallUnknown2009-06-232009-06-23
Mandriva S. A.Unknown2009-06-232009-06-23
McAfeeUnknown2009-06-232009-06-23
Microsoft CorporationNot Vulnerable2009-06-232009-06-24
MontaVista Software, Inc.Unknown2009-06-232009-06-23
Multitech, Inc.Unknown2009-06-232009-06-23
NEC CorporationUnknown2009-06-232009-06-23
NetAppUnknown2009-06-232009-06-23
NetBSDVulnerable2009-06-232009-07-15
netfilterUnknown2009-06-232009-06-23
NokiaUnknown2009-06-252009-06-25
Nortel Networks, Inc.Unknown2009-06-232009-06-23
Novell, Inc.Unknown2009-06-232009-06-23
Openwall GNU/*/LinuxUnknown2009-06-232009-06-23
PePLinkVulnerable2009-06-232009-06-24
Process SoftwareUnknown2009-06-232009-06-23
Q1 LabsUnknown2009-06-232009-06-23
QNX, Software Systems, Inc.Not Vulnerable2009-06-232009-07-07
QuaggaUnknown2009-06-232009-06-23
RadWare, Inc.Unknown2009-06-232009-06-23
Red Hat, Inc.Vulnerable2009-06-232009-07-16
Redback Networks, Inc.Unknown2009-06-232009-06-23
SafeNetNot Vulnerable2009-06-232009-07-03
Secureworx, Inc.Unknown2009-06-232009-06-23
Silicon Graphics, Inc.Unknown2009-06-232009-06-23
Slackware Linux Inc.Unknown2009-06-232009-06-23
SmoothWallNot Vulnerable2009-06-232009-06-25
SnortUnknown2009-06-232009-06-23
Soapstone NetworksUnknown2009-06-232009-06-23
Sony CorporationUnknown2009-06-232009-06-23
SourcefireUnknown2009-06-232009-06-23
StonesoftUnknown2009-06-232009-06-23
Sun Microsystems, Inc.Not Vulnerable2009-06-232009-06-26
SUSE LinuxUnknown2009-06-232009-06-23
SymantecUnknown2009-06-232009-06-23
The SCO GroupNot Vulnerable2009-06-232009-06-30
TippingPoint, Technologies, Inc.Unknown2009-06-232009-06-23
TurbolinuxUnknown2009-06-232009-06-23
U4EA Technologies, Inc.Unknown2009-06-232009-06-23
UbuntuVulnerable2009-06-232009-07-14
UnisysUnknown2009-06-232009-06-23
VMwareUnknown2009-06-292009-06-29
VyattaUnknown2009-06-232009-06-23
Watchguard Technologies, Inc.Unknown2009-06-232009-06-23
Wind River Systems, Inc.Not Vulnerable2009-06-232009-06-29
ZyXELUnknown2009-06-232009-06-23

References


https://www.isc.org/node/468

Credit

This vulnerability was reported by ISC, who in turn credit the Mandriva Linux Engineering Team with discovering and reporting the vulnerability.

This document was written by Will Dormann.

Other Information

Date Public:2009-07-14
Date First Published:2009-07-14
Date Last Updated:2009-07-16
CERT Advisory: 
CVE-ID(s):CVE-2009-0692
NVD-ID(s):CVE-2009-0692
US-CERT Technical Alerts: 
Metric:19.95
Document Revision:27

Original Source

Url : http://www.kb.cert.org/vuls/id/410676

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:10758
 
Oval ID: oval:org.mitre.oval:def:10758
Title: Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted subnet-mask option.
Description: Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted subnet-mask option.
Family: unix Class: vulnerability
Reference(s): CVE-2009-0692
 Version: 5
Platform(s): Red Hat Enterprise Linux 3
CentOS Linux 3
Red Hat Enterprise Linux 4
CentOS Linux 4
Oracle Linux 4
 Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:12418
 
Oval ID: oval:org.mitre.oval:def:12418
Title: USN-803-2 -- dhcp3 vulnerability
Description: USN-803-1 fixed a vulnerability in Dhcp. Due to an error, the patch to fix the vulnerability was not properly applied on Ubuntu 8.10 and higher. Even with the patch improperly applied, the default compiler options reduced the vulnerability to a denial of service. Additionally, in Ubuntu 9.04 and higher, users were also protected by the AppArmor dhclient3 profile. This update fixes the problem. Original advisory details: It was discovered that the DHCP client as included in dhcp3 did not verify the length of certain option fields when processing a response from an IPv4 dhcp server. If a user running Ubuntu 6.06 LTS or 8.04 LTS connected to a malicious dhcp server, a remote attacker could cause a denial of service or execute arbitrary code as the user invoking the program, typically the "dhcp" user. For users running Ubuntu 8.10 or 9.04, a remote attacker should only be able to cause a denial of service in the DHCP client. In Ubuntu 9.04, attackers would also be isolated by the AppArmor dhclient3 profile.
Family: unix Class: patch
Reference(s): USN-803-2
CVE-2009-0692
 Version: 5
Platform(s): Ubuntu 8.10
Ubuntu 9.10
Ubuntu 9.04
 Product(s): dhcp3
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:13332
 
Oval ID: oval:org.mitre.oval:def:13332
Title: USN-803-1 -- dhcp3 vulnerability
Description: It was discovered that the DHCP client as included in dhcp3 did not verify the length of certain option fields when processing a response from an IPv4 dhcp server. If a user running Ubuntu 6.06 LTS or 8.04 LTS connected to a malicious dhcp server, a remote attacker could cause a denial of service or execute arbitrary code as the user invoking the program, typically the "dhcp" user. For users running Ubuntu 8.10 or 9.04, a remote attacker should only be able to cause a denial of service in the DHCP client. In Ubuntu 9.04, attackers would also be isolated by the AppArmor dhclient3 profile.
Family: unix Class: patch
Reference(s): USN-803-1
CVE-2009-0692
 Version: 5
Platform(s): Ubuntu 8.04
Ubuntu 9.04
Ubuntu 6.06
Ubuntu 8.10
 Product(s): dhcp3
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:5941
 
Oval ID: oval:org.mitre.oval:def:5941
Title: DHCP dhclient Stack Overflow in script_write_params() Lets Remote Users Execute Arbitrary Code
Description: Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted subnet-mask option.
Family: unix Class: vulnerability
Reference(s): CVE-2009-0692
 Version: 1
Platform(s): VMWare ESX Server 3
VMWare ESX Server 3.5
 Product(s):
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 5

ExploitDB Exploits

id Description
2009-11-10 ISC DHCP 'dhclient' 'script_write_params()' Stack Buffer Overflow Vulnerability
2009-07-27 ISC DHCP dhclient < 3.1.2p1 Remote Buffer Overflow PoC

OpenVAS Exploits

Date Description
2011-08-09 Name : CentOS Update for dhclient CESA-2009:1154 centos3 i386
File : nvt/gb_CESA-2009_1154_dhclient_centos3_i386.nasl
2010-06-25 Name : Fedora Update for dhcp FEDORA-2010-10083
File : nvt/gb_fedora_2010_10083_dhcp_fc11.nasl
2010-01-29 Name : Ubuntu Update for dhcp3 vulnerability USN-803-2
File : nvt/gb_ubuntu_USN_803_2.nasl
2009-12-10 Name : Mandriva Security Advisory MDVSA-2009:312 (dhcp)
File : nvt/mdksa_2009_312.nasl
2009-11-17 Name : Fedora Core 11 FEDORA-2009-9075 (dhcp)
File : nvt/fcore_2009_9075.nasl
2009-10-13 Name : SLES10: Security update for dhclient
File : nvt/sles10_dhcp.nasl
2009-10-11 Name : SLES11: Security update for dhcp-client
File : nvt/sles11_dhcp-client.nasl
2009-10-10 Name : SLES9: Security update for dhcp-client
File : nvt/sles9p5053652.nasl
2009-09-02 Name : Debian Security Advisory DSA 1833-2 (dhcp3)
File : nvt/deb_1833_2.nasl
2009-09-02 Name : Fedora Core 10 FEDORA-2009-8344 (dhcp)
File : nvt/fcore_2009_8344.nasl
2009-07-29 Name : Ubuntu USN-803-1 (dhcp3)
File : nvt/ubuntu_803_1.nasl
2009-07-29 Name : RedHat Security Advisory RHSA-2009:1136
File : nvt/RHSA_2009_1136.nasl
2009-07-29 Name : SuSE Security Advisory SUSE-SA:2009:037 (dhcp-client)
File : nvt/suse_sa_2009_037.nasl
2009-07-29 Name : CentOS Security Advisory CESA-2009:1154 (dhcp)
File : nvt/ovcesa2009_1154.nasl
2009-07-29 Name : Mandrake Security Advisory MDVSA-2009:151 (dhcp)
File : nvt/mdksa_2009_151.nasl
2009-07-29 Name : Gentoo Security Advisory GLSA 200907-12 (dhcp)
File : nvt/glsa_200907_12.nasl
2009-07-29 Name : FreeBSD Ports: isc-dhcp31-client
File : nvt/freebsd_isc-dhcp31-client.nasl
2009-07-29 Name : Debian Security Advisory DSA 1833-1 (dhcp3)
File : nvt/deb_1833_1.nasl
2009-07-29 Name : RedHat Security Advisory RHSA-2009:1154
File : nvt/RHSA_2009_1154.nasl
2009-07-23 Name : ISC DHCP Client Buffer Overflow Vulnerability
File : nvt/secpod_isc_dhcp_client_bof_vuln.nasl
0000-00-00 Name : Slackware Advisory SSA:2009-195-01 dhcp
File : nvt/esoft_slk_ssa_2009_195_01.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
55819 ISC DHCP client/dhclient.c script_write_params() Function Remote Overflow

Information Assurance Vulnerability Management (IAVM)

Date Description
2009-10-22 IAVM : 2009-A-0105 - Multiple Vulnerabilities in VMware Products
Severity : Category I - VMSKEY : V0021867

Snort® IPS/IDS

Date Description
2014-01-10 Multiple Operating Systems invalid DHCP option attempt
RuleID : 7196 - Revision : 13 - Type : OS-OTHER
2014-01-10 dhclient subnet mask option buffer overflow attempt
RuleID : 15700 - Revision : 3 - Type : SERVER-OTHER

Nessus® Vulnerability Scanner

Date Description
2016-03-03 Name : The remote host is missing a security-related patch.
File : vmware_VMSA-2009-0014_remote.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2009-1154.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2009-1136.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20090714_dhcp_on_SL3_x.nasl - Type : ACT_GATHER_INFO
2010-02-24 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-1833.nasl - Type : ACT_GATHER_INFO
2010-01-28 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-803-2.nasl - Type : ACT_GATHER_INFO
2009-12-04 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2009-312.nasl - Type : ACT_GATHER_INFO
2009-11-11 Name : The remote Fedora host is missing a security update.
File : fedora_2009-9075.nasl - Type : ACT_GATHER_INFO
2009-10-19 Name : The remote VMware ESX host is missing one or more security-related patches.
File : vmware_VMSA-2009-0014.nasl - Type : ACT_GATHER_INFO
2009-10-06 Name : The remote openSUSE host is missing a security update.
File : suse_dhcp-6336.nasl - Type : ACT_GATHER_INFO
2009-09-24 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_dhcp-6335.nasl - Type : ACT_GATHER_INFO
2009-09-24 Name : The remote SuSE 11 host is missing a security update.
File : suse_11_dhcp-client-090626.nasl - Type : ACT_GATHER_INFO
2009-09-24 Name : The remote SuSE 9 host is missing a security-related patch.
File : suse9_12447.nasl - Type : ACT_GATHER_INFO
2009-08-26 Name : The remote Fedora host is missing a security update.
File : fedora_2009-8344.nasl - Type : ACT_GATHER_INFO
2009-07-21 Name : The remote openSUSE host is missing a security update.
File : suse_11_0_dhcp-090626.nasl - Type : ACT_GATHER_INFO
2009-07-21 Name : The remote openSUSE host is missing a security update.
File : suse_11_1_dhcp-090626.nasl - Type : ACT_GATHER_INFO
2009-07-16 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2009-1154.nasl - Type : ACT_GATHER_INFO
2009-07-16 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2009-151.nasl - Type : ACT_GATHER_INFO
2009-07-16 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_c444c8b7716911de9ab7000c29a67389.nasl - Type : ACT_GATHER_INFO
2009-07-15 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2009-1154.nasl - Type : ACT_GATHER_INFO
2009-07-15 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2009-1136.nasl - Type : ACT_GATHER_INFO
2009-07-15 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-803-1.nasl - Type : ACT_GATHER_INFO
2009-07-15 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-200907-12.nasl - Type : ACT_GATHER_INFO
2009-07-15 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2009-195-01.nasl - Type : ACT_GATHER_INFO

Alert History

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Date Informations
2014-02-17 12:07:49
  • Multiple Updates