ISC DHCP 'dhclient' Shell Characters in Response Remote Code Execution Vulnerability

BID:47176

Info

ISC DHCP 'dhclient' Shell Characters in Response Remote Code Execution Vulnerability

Bugtraq ID: 47176
Class: Input Validation Error
CVE: CVE-2011-0997
Remote: Yes
Local: No
Published: Apr 05 2011 12:00AM
Updated: Oct 26 2016 09:06AM
Credit: Sebastian Krahmer and Marius Tomaschewski from the SUSE Security Team
Vulnerable: VMWare ESX Server 3.0.3
VMWare ESX Server 4.1
VMWare ESX Server 4.0
VMWare ESX Server 3.5
VMWare ESX 4.1
VMWare ESX 4.0
VMWare ESX 3.5
Ubuntu Ubuntu Linux 9.10 sparc
Ubuntu Ubuntu Linux 9.10 powerpc
Ubuntu Ubuntu Linux 9.10 lpia
Ubuntu Ubuntu Linux 9.10 i386
Ubuntu Ubuntu Linux 9.10 ARM
Ubuntu Ubuntu Linux 9.10 amd64
Ubuntu Ubuntu Linux 9.10
Ubuntu Ubuntu Linux 8.04 LTS sparc
Ubuntu Ubuntu Linux 8.04 LTS powerpc
Ubuntu Ubuntu Linux 8.04 LTS lpia
Ubuntu Ubuntu Linux 8.04 LTS i386
Ubuntu Ubuntu Linux 8.04 LTS amd64
Ubuntu Ubuntu Linux 6.06 LTS sparc
Ubuntu Ubuntu Linux 6.06 LTS powerpc
Ubuntu Ubuntu Linux 6.06 LTS i386
Ubuntu Ubuntu Linux 6.06 LTS amd64
Ubuntu Ubuntu Linux 10.10 powerpc
Ubuntu Ubuntu Linux 10.10 i386
Ubuntu Ubuntu Linux 10.10 ARM
Ubuntu Ubuntu Linux 10.10 amd64
Ubuntu Ubuntu Linux 10.04 sparc
Ubuntu Ubuntu Linux 10.04 powerpc
Ubuntu Ubuntu Linux 10.04 LTS
Ubuntu Ubuntu Linux 10.04 i386
Ubuntu Ubuntu Linux 10.04 ARM
Ubuntu Ubuntu Linux 10.04 amd64
SuSE SUSE Linux Enterprise Server 9
SuSE SUSE Linux Enterprise 11 SP1
SuSE SUSE Linux Enterprise 10 SP4
SuSE SUSE Linux Enterprise 10 SP3
SuSE SUSE Linux Enterprise 10 SP2
Slackware Linux 10.2
Slackware Linux 10.1
Slackware Linux 10.0
Slackware Linux 9.1
Slackware Linux 9.0
Slackware Linux x86_64 -current
Slackware Linux 13.1 x86_64
Slackware Linux 13.1
Slackware Linux 13.0 x86_64
Slackware Linux 13.0
Slackware Linux 12.2
Slackware Linux 12.1
Slackware Linux 12.0
Slackware Linux 11.0
Slackware Linux -current
S.u.S.E. openSUSE 11.4
S.u.S.E. openSUSE 11.3
S.u.S.E. openSUSE 11.2
S.u.S.E. Open-Enterprise-Server 0
S.u.S.E. Novell Linux POS 9
Redhat Enterprise Linux WS 4
Redhat Enterprise Linux Workstation Optional 6
Redhat Enterprise Linux Workstation 6
Redhat Enterprise Linux Server Optional 6
Redhat Enterprise Linux Server 6
Redhat Enterprise Linux HPC Node Optional 6
Redhat Enterprise Linux HPC Node 6
Redhat Enterprise Linux ES 4
Redhat Enterprise Linux ES 3
Redhat Enterprise Linux Desktop Workstation 5 client
Redhat Enterprise Linux Desktop Optional 6
Redhat Enterprise Linux Desktop 6
Redhat Enterprise Linux Desktop 5 client
Redhat Enterprise Linux AS 4
Redhat Enterprise Linux AS 3
Redhat Enterprise Linux Desktop version 4
Redhat Enterprise Linux 5 Server
Pardus Linux 2009 0
NetBSD NetBSD 5.0.2
NetBSD NetBSD 5.0.1
NetBSD NetBSD 4.0.2
NetBSD NetBSD 4.0.1
NetBSD NetBSD Current
NetBSD NetBSD 5.1
NetBSD NetBSD 5.0 RC3
NetBSD NetBSD 5.0
NetBSD NetBSD 4.0 BETA2
NetBSD NetBSD 4.0
NetBSD NetBSD 4,0_Beta
Mandriva Linux Mandrake 2010.1 x86_64
Mandriva Linux Mandrake 2010.1
Mandriva Linux Mandrake 2010.0 x86_64
Mandriva Linux Mandrake 2010.0
Mandriva Linux Mandrake 2009.0 x86_64
Mandriva Linux Mandrake 2009.0
MandrakeSoft Enterprise Server 5 x86_64
MandrakeSoft Enterprise Server 5
MandrakeSoft Corporate Server 4.0 x86_64
MandrakeSoft Corporate Server 4.0
Juniper CTPView 7.3
Juniper CTPView 7.1R2
Juniper CTPView 7.1r1
ISC DHCPD 4.1.1
ISC DHCPD 3.1.1
ISC DHCPD 3.0.4
ISC DHCPD 3.0.1 rc9
ISC DHCPD 3.0.1 rc8
ISC DHCPD 3.0.1 rc7
ISC DHCPD 3.0.1 rc6
ISC DHCPD 3.0.1 rc5
ISC DHCPD 3.0.1 rc4
ISC DHCPD 3.0.1 rc3
ISC DHCPD 3.0.1 rc2
ISC DHCPD 3.0.1 rc14
ISC DHCPD 3.0.1 rc13
ISC DHCPD 3.0.1 rc12
ISC DHCPD 3.0.1 rc11
ISC DHCPD 3.0.1 rc10
+ OpenPKG OpenPKG Current
 ISC DHCPD 3.0.1 rc1
ISC DHCPD 3.0 rc4
+ S.u.S.E. Linux 7.2 i386
 + S.u.S.E. Linux 7.2
ISC DHCPD 3.0 rc12
ISC DHCPD 3.0 pl2
ISC DHCPD 3.0 pl1
+ Gentoo Linux 1.4 _rc2
 + Gentoo Linux 1.4 _rc1
 + Redhat Linux 8.0 i386
 + Redhat Linux 8.0
+ Slackware Linux 8.1
ISC DHCPD 3.0 b2pl9
+ Mandriva Linux Mandrake 7.2
ISC DHCPD 3.0 b2pl23
+ MandrakeSoft Single Network Firewall 7.2
ISC DHCPD 3.0
+ Caldera OpenLinux Server 3.1.1
+ Caldera OpenLinux Server 3.1
+ Caldera OpenLinux Workstation 3.1.1
+ Caldera OpenLinux Workstation 3.1
+ MandrakeSoft Multi Network Firewall 2.0
+ Mandriva Linux Mandrake 9.0
+ Mandriva Linux Mandrake 8.2 ppc
 + Mandriva Linux Mandrake 8.2
+ Mandriva Linux Mandrake 8.1 ia64
 + Mandriva Linux Mandrake 8.1
- S.u.S.E. Linux 8.0
- S.u.S.E. Linux 7.3
- S.u.S.E. Linux 7.2
- S.u.S.E. Linux Connectivity Server
- S.u.S.E. Linux Database Server 0
 - S.u.S.E. Linux Enterprise Server for S/390
- S.u.S.E. SuSE eMail Server III
- SuSE SUSE Linux Enterprise Server 7
 ISC DHCPD 4.1.1-P1
ISC DHCPD 4.1
ISC DHCPD 4.0.2-P1
ISC DHCPD 4.0.1p1
ISC DHCPD 4.0
ISC DHCPD 3.0.5b1
ISC DHCPD 3.0.2rc1
ISC DHCP Client 3.0 b1pl17
ISC DHCP Client 3.0 b1pl14
ISC DHCP Client 3.0 b1
ISC DHCP Client 4.1.1-P1
ISC DHCP Client 4.1.0p1
ISC DHCP Client 4.1
ISC DHCP Client 4.0.2-P1
ISC DHCP Client 4.0.1p1
ISC DHCP Client 4.0
ISC DHCP Client 3.1.2p1
ISC DHCP Client 3.0
HP Insight Control for Linux (IC-Linux) 7.0
Gentoo Linux
Debian Linux 5.0 sparc
Debian Linux 5.0 s/390
Debian Linux 5.0 powerpc
Debian Linux 5.0 mipsel
Debian Linux 5.0 mips
Debian Linux 5.0 m68k
Debian Linux 5.0 ia-64
Debian Linux 5.0 ia-32
Debian Linux 5.0 hppa
Debian Linux 5.0 armel
Debian Linux 5.0 arm
Debian Linux 5.0 amd64
Debian Linux 5.0 alpha
Debian Linux 5.0
Citrix XenServer 5.6 SP2
Citrix XenServer 5.6 Feature Pack 1
Citrix XenServer 5.6 Common Criteria
Citrix XenServer 5.6
Citrix XenServer 5.5
Citrix XenServer 5.0 Update 3
Avaya Messaging Storage Server 5.2.8
Avaya Messaging Storage Server 5.2.2
Avaya Messaging Storage Server 5.2 SP3
Avaya Messaging Storage Server 5.2 SP2
Avaya Messaging Storage Server 5.2 SP1
Avaya Messaging Storage Server 5.2
Avaya Messaging Storage Server 5.1 SP2
Avaya Messaging Storage Server 5.1 SP1
Avaya Messaging Storage Server 5.1
Avaya Messaging Storage Server 5.0
Avaya Message Networking 5.2.3
Avaya Meeting Exchange 5.2 SP2
Avaya Meeting Exchange 5.2 SP1
Avaya Meeting Exchange 5.2
Avaya Meeting Exchange 5.1 SP1
Avaya Meeting Exchange 5.1
Avaya IQ 5.2
Avaya IQ 5.1
Avaya IQ 5
Avaya IP Office Application Server 7.0
Avaya IP Office Application Server 6.1
Avaya IP Office Application Server 6.0
Avaya Aura System Platform 6.0 SP3
Avaya Aura System Platform 6.0 SP2
Avaya Aura System Platform 6.0
Avaya Aura System Platform 1.0
Avaya Aura System Manager 6.2.3
Avaya Aura System Manager 6.2
Avaya Aura System Manager 6.1.1
Avaya Aura System Manager 6.1 SP2
Avaya Aura System Manager 6.1 Sp1
Avaya Aura System Manager 6.1
Avaya Aura System Manager 6.0 SP1
Avaya Aura System Manager 6.0
Avaya Aura System Manager 5.2
Avaya Aura SIP Enablement Services 5.2.1
Avaya Aura Presence Services 6.1.1
Avaya Aura Presence Services 6.1
Avaya Aura Presence Services 6.0
Avaya Aura Conferencing 6.0 Standard
Avaya Aura Conferencing 6.0 Standard
Avaya Aura Conferencing 6.0 SP1 Standard
Avaya Aura Conferencing 6.0
Apple Time Capsule Firmware 7.5.2
Apple Time Capsule Firmware 7.5
Apple Time Capsule Firmware 7.4.2
Apple Time Capsule Firmware 7.4.1
Apple Time Capsule 0
Apple AirPort Express Base Station with 802.11n Firmware 7.5.2
Apple AirPort Express Base Station with 802.11n Firmware 7.4.1
Not Vulnerable: Juniper CTPView 7.3R1
Juniper CTPView 7.1R3
ISC DHCPD 4.2.1-P1
ISC DHCPD 4.1-ESV-R2
ISC DHCPD 3.1-ESV-R1
ISC DHCP Client 4.2.1-P1
ISC DHCP Client 4.1-ESV-R2
ISC DHCP Client 3.1-ESV-R1
Avaya Message Networking 5.2.4
Avaya IP Office Application Server 8.0
Avaya Aura System Manager 6.3
Avaya Aura Presence Services 6.1.2
Apple Time Capsule Firmware 7.6
Apple AirPort Express Base Station with 802.11n Firmware 7.6

Discussion

ISC DHCP 'dhclient' Shell Characters in Response Remote Code Execution Vulnerability

The ISC DHCP client 'dhclient' is prone to a remote code-execution vulnerability because it fails to properly escape certain shell meta-characters from DHCP server responses.

A remote attacker can exploit this issue through a rogue DHCP server.

Successfully exploiting this issue allows a remote attacker to execute arbitrary code with superuser privileges, resulting in a complete compromise of the affected computer.

Exploit / POC

ISC DHCP 'dhclient' Shell Characters in Response Remote Code Execution Vulnerability

A working commercial exploit is available for Immunity CANVAS. This exploit is not otherwise publicly available or known to be circulating in the wild.

https://www.immunityinc.com/downloads/immpartners/cve_2011_0997.tar.gz

Solution / Fix

ISC DHCP 'dhclient' Shell Characters in Response Remote Code Execution Vulnerability

Solution:
Updates are available. Please see the references for more information.


Slackware Linux 12.2

Ubuntu Ubuntu Linux 9.10 powerpc

Ubuntu Ubuntu Linux 9.10 lpia

Slackware Linux 13.1

Ubuntu Ubuntu Linux 10.04 powerpc

Ubuntu Ubuntu Linux 9.10 ARM

Ubuntu Ubuntu Linux 9.10 amd64

Mandriva Linux Mandrake 2009.0 x86_64

Slackware Linux x86_64 -current

MandrakeSoft Enterprise Server 5

Ubuntu Ubuntu Linux 8.04 LTS lpia

Ubuntu Ubuntu Linux 6.06 LTS i386

Slackware Linux 10.0

Slackware Linux 10.2

Slackware Linux 9.1

References

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