Executive Summary

Informations
Name CVE-2011-0997 First vendor Publication 2011-04-08
Vendor Cve Last vendor Modification 2020-04-01

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:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

dhclient in ISC DHCP 3.0.x through 4.2.x before 4.2.1-P1, 3.1-ESV before 3.1-ESV-R1, and 4.1-ESV before 4.1-ESV-R2 allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message, as demonstrated by a hostname that is provided to dhclient-script.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-0997

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-20 Improper Input Validation

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:12032
 
Oval ID: oval:org.mitre.oval:def:12032
Title: DSA-2216-1 isc-dhcp -- missing input sanitisation
Description: Sebastian Krahmer and Marius Tomaschewski discovered that dhclient of isc-dhcp, a DHCP client, is not properly filtering shell meta-characters in certain options in DHCP server responses. These options are reused in an insecure fashion by dhclient scripts. This allows an attacker to execute arbitrary commands with the privileges of such a process by sending crafted DHCP options to a client using a rogue server.
Family: unix Class: patch
Reference(s): DSA-2216-1
CVE-2011-0997
Version: 5
Platform(s): Debian GNU/Linux 6.0
Debian GNU/kFreeBSD 6.0
Product(s): isc-dhcp
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:12297
 
Oval ID: oval:org.mitre.oval:def:12297
Title: DSA-2217-1 dhcp3 -- missing input sanitisation
Description: Sebastian Krahmer and Marius Tomaschewski discovered that dhclient of dhcp3, a DHCP client, is not properly filtering shell meta-characters in certain options in DHCP server responses. These options are reused in an insecure fashion by dhclient scripts. This allows an attacker to execute arbitrary commands with the privileges of such a process by sending crafted DHCP options to a client using a rogue server.
Family: unix Class: patch
Reference(s): DSA-2217-1
CVE-2011-0997
Version: 5
Platform(s): Debian GNU/Linux 5.0
Product(s): dhcp3
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:12812
 
Oval ID: oval:org.mitre.oval:def:12812
Title: VMSA-2011-0010 VMware ESX third party updates for Service Console packages glibc and dhcp
Description: dhclient in ISC DHCP 3.0.x through 4.2.x before 4.2.1-P1, 3.1-ESV before 3.1-ESV-R1, and 4.1-ESV before 4.1-ESV-R2 allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message, as demonstrated by a hostname that is provided to dhclient-script.
Family: unix Class: vulnerability
Reference(s): CVE-2011-0997
Version: 4
Platform(s): VMWare ESX Server 4.0
VMWare ESX Server 4.1
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:13818
 
Oval ID: oval:org.mitre.oval:def:13818
Title: USN-1108-1 -- dhcp3 vulnerability
Description: Sebastian Krahmer discovered that the dhclient utility incorrectly filtered crafted responses. An attacker could use this flaw with a malicious DHCP server to execute arbitrary code, resulting in root privilege escalation.
Family: unix Class: patch
Reference(s): USN-1108-1
CVE-2011-0997
Version: 5
Platform(s): Ubuntu 8.04
Ubuntu 10.10
Ubuntu 10.04
Ubuntu 9.10
Ubuntu 6.06
Product(s): dhcp3
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:13937
 
Oval ID: oval:org.mitre.oval:def:13937
Title: USN-1108-2 -- dhcp3 vulnerability
Description: dhcp3: DHCP Client Details: USN-1108-1 fixed vulnerabilities in DHCP. Due to an error, the patch to fix the vulnerability was not properly applied on Ubuntu 9.10 and higher. This update fixes the problem. Original advisory An attacker�s DHCP server could send crafted responses to your computer and cause it to run programs as root.
Family: unix Class: patch
Reference(s): USN-1108-2
CVE-2011-0997
Version: 5
Platform(s): Ubuntu 10.10
Ubuntu 9.10
Ubuntu 10.04
Product(s): dhcp3
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:20394
 
Oval ID: oval:org.mitre.oval:def:20394
Title: VMware ESX third party updates for Service Console packages glibc and dhcp
Description: dhclient in ISC DHCP 3.0.x through 4.2.x before 4.2.1-P1, 3.1-ESV before 3.1-ESV-R1, and 4.1-ESV before 4.1-ESV-R2 allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message, as demonstrated by a hostname that is provided to dhclient-script.
Family: unix Class: vulnerability
Reference(s): CVE-2011-0997
Version: 4
Platform(s): VMWare ESX Server 4.1
VMWare ESX Server 4.0
VMWare ESX Server 3.5
Product(s):
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:21712
 
Oval ID: oval:org.mitre.oval:def:21712
Title: RHSA-2011:0428: dhcp security update (Important)
Description: dhclient in ISC DHCP 3.0.x through 4.2.x before 4.2.1-P1, 3.1-ESV before 3.1-ESV-R1, and 4.1-ESV before 4.1-ESV-R2 allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message, as demonstrated by a hostname that is provided to dhclient-script.
Family: unix Class: patch
Reference(s): RHSA-2011:0428-01
CVE-2011-0997
CESA-2011:0428-CentOS 5
Version: 6
Platform(s): Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 5
CentOS Linux 5
Product(s): dhcp
Definition Synopsis:
Definition Id: oval:org.mitre.oval:def:23459
 
Oval ID: oval:org.mitre.oval:def:23459
Title: ELSA-2011:0428: dhcp security update (Important)
Description: dhclient in ISC DHCP 3.0.x through 4.2.x before 4.2.1-P1, 3.1-ESV before 3.1-ESV-R1, and 4.1-ESV before 4.1-ESV-R2 allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message, as demonstrated by a hostname that is provided to dhclient-script.
Family: unix Class: patch
Reference(s): ELSA-2011:0428-01
CVE-2011-0997
Version: 6
Platform(s): Oracle Linux 6
Product(s): dhcp
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 59
Os 5
Os 3

OpenVAS Exploits

Date Description
2012-07-30 Name : CentOS Update for dhclient CESA-2011:0428 centos4 x86_64
File : nvt/gb_CESA-2011_0428_dhclient_centos4_x86_64.nasl
2012-07-30 Name : CentOS Update for dhclient CESA-2011:0428 centos5 x86_64
File : nvt/gb_CESA-2011_0428_dhclient_centos5_x86_64.nasl
2011-09-12 Name : Fedora Update for dhcp FEDORA-2011-10705
File : nvt/gb_fedora_2011_10705_dhcp_fc14.nasl
2011-08-09 Name : CentOS Update for dhclient CESA-2011:0428 centos5 i386
File : nvt/gb_CESA-2011_0428_dhclient_centos5_i386.nasl
2011-05-12 Name : Debian Security Advisory DSA 2216-1 (isc-dhcp)
File : nvt/deb_2216_1.nasl
2011-05-12 Name : Debian Security Advisory DSA 2217-1 (dhcp3)
File : nvt/deb_2217_1.nasl
2011-05-12 Name : FreeBSD Ports: isc-dhcp31-client
File : nvt/freebsd_isc-dhcp31-client0.nasl
2011-05-10 Name : Ubuntu Update for dhcp3 USN-1108-2
File : nvt/gb_ubuntu_USN_1108_2.nasl
2011-04-21 Name : Fedora Update for dhcp FEDORA-2011-0848
File : nvt/gb_fedora_2011_0848_dhcp_fc13.nasl
2011-04-19 Name : Fedora Update for dhcp FEDORA-2011-4897
File : nvt/gb_fedora_2011_4897_dhcp_fc14.nasl
2011-04-19 Name : Mandriva Update for dhcp MDVSA-2011:073 (dhcp)
File : nvt/gb_mandriva_MDVSA_2011_073.nasl
2011-04-19 Name : Ubuntu Update for dhcp3 vulnerability USN-1108-1
File : nvt/gb_ubuntu_USN_1108_1.nasl
2011-04-11 Name : CentOS Update for dhclient CESA-2011:0428 centos4 i386
File : nvt/gb_CESA-2011_0428_dhclient_centos4_i386.nasl
2011-04-11 Name : RedHat Update for dhcp RHSA-2011:0428-01
File : nvt/gb_RHSA-2011_0428-01_dhcp.nasl
0000-00-00 Name : Slackware Advisory SSA:2011-097-01 dhcp
File : nvt/esoft_slk_ssa_2011_097_01.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
71493 ISC DHCP dhclient Response Handling Metacharacter Shell Command Execution

ISC DHCP contains a flaw related to the dhclient-script script failing to properly strip shell meta-characters when processing responses from DHCP servers. This may allow a remote attacker to use a crafted hostname response to execute arbitrary shell commands.

Information Assurance Vulnerability Management (IAVM)

Date Description
2011-08-04 IAVM : 2011-A-0108 - Multiple Vulnerabilities in VMware ESX Service Console
Severity : Category I - VMSKEY : V0029562

Snort® IPS/IDS

Date Description
2019-08-31 ISC DHCP command injection attempt
RuleID : 50831 - Revision : 1 - Type : SERVER-OTHER
2019-08-31 ISC DHCP command injection attempt
RuleID : 50830 - Revision : 1 - Type : SERVER-OTHER

Nessus® Vulnerability Scanner

Date Description
2016-06-22 Name : The remote OracleVM host is missing a security update.
File : oraclevm_OVMSA-2016-0058.nasl - Type : ACT_GATHER_INFO
2016-03-04 Name : The remote VMware ESX host is missing a security-related patch.
File : vmware_VMSA-2011-0010_remote.nasl - Type : ACT_GATHER_INFO
2014-10-10 Name : The remote device is missing a vendor-supplied security patch.
File : f5_bigip_SOL13219.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_4_dhcp-110406.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_3_dhcpcd-110411.nasl - Type : ACT_GATHER_INFO
2014-06-13 Name : The remote openSUSE host is missing a security update.
File : suse_11_3_dhcp-110406.nasl - Type : ACT_GATHER_INFO
2013-07-12 Name : The remote Oracle Linux host is missing one or more security updates.
File : oraclelinux_ELSA-2011-0428.nasl - Type : ACT_GATHER_INFO
2013-01-09 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201301-06.nasl - Type : ACT_GATHER_INFO
2012-08-01 Name : The remote Scientific Linux host is missing one or more security updates.
File : sl_20110408_dhcp_on_SL4_x.nasl - Type : ACT_GATHER_INFO
2011-12-13 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_dhcp6-7465.nasl - Type : ACT_GATHER_INFO
2011-12-13 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_dhcp-7451.nasl - Type : ACT_GATHER_INFO
2011-12-13 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_dhcp-7430.nasl - Type : ACT_GATHER_INFO
2011-11-16 Name : The remote network device is affected by an arbitrary code execution vulnerab...
File : airport_firmware_7_6.nasl - Type : ACT_GATHER_INFO
2011-09-07 Name : The remote Fedora host is missing a security update.
File : fedora_2011-10705.nasl - Type : ACT_GATHER_INFO
2011-08-01 Name : The remote VMware ESX host is missing one or more security-related patches.
File : vmware_VMSA-2011-0010.nasl - Type : ACT_GATHER_INFO
2011-06-13 Name : The remote Ubuntu host is missing a security-related patch.
File : ubuntu_USN-1108-2.nasl - Type : ACT_GATHER_INFO
2011-05-28 Name : The remote Slackware host is missing a security update.
File : Slackware_SSA_2011-097-01.nasl - Type : ACT_GATHER_INFO
2011-05-05 Name : The remote openSUSE host is missing a security update.
File : suse_11_2_dhcp-110406.nasl - Type : ACT_GATHER_INFO
2011-05-04 Name : The remote SuSE 9 host is missing a security-related patch.
File : suse9_12697.nasl - Type : ACT_GATHER_INFO
2011-04-20 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_dhcp6-7464.nasl - Type : ACT_GATHER_INFO
2011-04-19 Name : The remote Fedora host is missing a security update.
File : fedora_2011-0848.nasl - Type : ACT_GATHER_INFO
2011-04-18 Name : The remote Fedora host is missing a security update.
File : fedora_2011-4934.nasl - Type : ACT_GATHER_INFO
2011-04-13 Name : The remote SuSE 10 host is missing a security-related patch.
File : suse_dhcp-7456.nasl - Type : ACT_GATHER_INFO
2011-04-13 Name : The remote Fedora host is missing a security update.
File : fedora_2011-4897.nasl - Type : ACT_GATHER_INFO
2011-04-13 Name : The remote SuSE 11 host is missing a security update.
File : suse_11_dhcpv6-110401.nasl - Type : ACT_GATHER_INFO
2011-04-12 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-1108-1.nasl - Type : ACT_GATHER_INFO
2011-04-12 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2011-073.nasl - Type : ACT_GATHER_INFO
2011-04-11 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2011-0428.nasl - Type : ACT_GATHER_INFO
2011-04-11 Name : The remote FreeBSD host is missing one or more security-related updates.
File : freebsd_pkg_7e69f00d632a11e09f3a001d092480a4.nasl - Type : ACT_GATHER_INFO
2011-04-11 Name : The remote SuSE 11 host is missing one or more security updates.
File : suse_11_dhcp-110407.nasl - Type : ACT_GATHER_INFO
2011-04-11 Name : The remote SuSE 9 host is missing a security-related patch.
File : suse9_12699.nasl - Type : ACT_GATHER_INFO
2011-04-11 Name : The remote SuSE 9 host is missing a security-related patch.
File : suse9_12698.nasl - Type : ACT_GATHER_INFO
2011-04-11 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2217.nasl - Type : ACT_GATHER_INFO
2011-04-11 Name : The remote Debian host is missing a security-related update.
File : debian_DSA-2216.nasl - Type : ACT_GATHER_INFO
2011-04-11 Name : The remote CentOS host is missing one or more security updates.
File : centos_RHSA-2011-0428.nasl - Type : ACT_GATHER_INFO
2011-04-07 Name : The remote SuSE 9 host is missing a security-related patch.
File : suse9_12696.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
BID http://www.securityfocus.com/bid/47176
CERT-VN http://www.kb.cert.org/vuls/id/107886
CONFIRM http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10761
https://bugzilla.redhat.com/show_bug.cgi?id=689832
https://www.isc.org/software/dhcp/advisories/cve-2011-0997
DEBIAN http://www.debian.org/security/2011/dsa-2216
http://www.debian.org/security/2011/dsa-2217
EXPLOIT-DB https://www.exploit-db.com/exploits/37623/
FEDORA http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057888.html
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058279.html
GENTOO http://security.gentoo.org/glsa/glsa-201301-06.xml
HP http://marc.info/?l=bugtraq&m=133226187115472&w=2
MANDRIVA http://www.mandriva.com/security/advisories?name=MDVSA-2011:073
OSVDB http://www.osvdb.org/71493
OVAL https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.ova...
REDHAT http://www.redhat.com/support/errata/RHSA-2011-0428.html
http://www.redhat.com/support/errata/RHSA-2011-0840.html
SECTRACK http://securitytracker.com/id?1025300
SECUNIA http://secunia.com/advisories/44037
http://secunia.com/advisories/44048
http://secunia.com/advisories/44089
http://secunia.com/advisories/44090
http://secunia.com/advisories/44103
http://secunia.com/advisories/44127
http://secunia.com/advisories/44180
SLACKWARE http://slackware.com/security/viewer.php?l=slackware-security&y=2011&...
UBUNTU http://www.ubuntu.com/usn/USN-1108-1
VUPEN http://www.vupen.com/english/advisories/2011/0879
http://www.vupen.com/english/advisories/2011/0886
http://www.vupen.com/english/advisories/2011/0909
http://www.vupen.com/english/advisories/2011/0915
http://www.vupen.com/english/advisories/2011/0926
http://www.vupen.com/english/advisories/2011/0965
http://www.vupen.com/english/advisories/2011/1000
XF https://exchange.xforce.ibmcloud.com/vulnerabilities/66580

Alert History

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Date Informations
2020-05-23 00:27:55
  • Multiple Updates
2017-09-19 09:24:16
  • Multiple Updates
2017-09-17 09:23:30
  • Multiple Updates
2017-08-17 09:23:19
  • Multiple Updates
2016-12-31 09:24:16
  • Multiple Updates
2016-06-28 18:34:25
  • Multiple Updates
2016-06-23 13:29:27
  • Multiple Updates
2016-04-26 20:35:45
  • Multiple Updates
2016-03-05 13:26:42
  • Multiple Updates
2014-10-11 13:26:06
  • Multiple Updates
2014-06-14 13:30:26
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2014-02-17 11:00:51
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2013-11-11 12:39:14
  • Multiple Updates
2013-08-22 13:18:57
  • Multiple Updates
2013-05-10 22:55:54
  • Multiple Updates