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Vulnerability Details : CVE-2011-0997

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.
Publish Date : 2011-04-08 Last Update Date : 2013-08-21
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- CVSS Scores & Vulnerability Types

CVSS Score
7.5
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Execute Code
CWE ID 20

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat important
7.9
AV:A/AC:M/Au:N/C:C/I:C/A:C 2011-03-18 2011-04-05
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2011-0997 oval:org.opensuse.security:def:20110997 unix
ELSA-2011:0428: dhcp security update (Important) oval:org.mitre.oval:def:23459 unix
RHSA-2011:0428: dhcp security update (Important) oval:org.mitre.oval:def:21712 unix
RHSA-2011:0428: dhcp security update (Important) oval:com.redhat.rhsa:def:20110428 unix
VMSA-2011-0010 VMware ESX third party updates for Service Console packages glibc and dhcp oval:org.mitre.oval:def:12812 unix
VMware ESX third party updates for Service Console packages glibc and dhcp oval:org.mitre.oval:def:20394 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2011-0997

# Product Type Vendor Product Version Update Edition Language
1 Application ISC Dhcp 3.0 Version Details Vulnerabilities
2 Application ISC Dhcp 3.0.1 Rc10 Version Details Vulnerabilities
3 Application ISC Dhcp 3.0.1 RC1 Version Details Vulnerabilities
4 Application ISC Dhcp 3.0.1 Rc11 Version Details Vulnerabilities
5 Application ISC Dhcp 3.0.1 RC6 Version Details Vulnerabilities
6 Application ISC Dhcp 3.0.1 RC8 Version Details Vulnerabilities
7 Application ISC Dhcp 3.0.1 RC2 Version Details Vulnerabilities
8 Application ISC Dhcp 3.0.1 Version Details Vulnerabilities
9 Application ISC Dhcp 3.0.1 RC7 Version Details Vulnerabilities
10 Application ISC Dhcp 3.0.1 Rc14 Version Details Vulnerabilities
11 Application ISC Dhcp 3.0.1 Rc12 Version Details Vulnerabilities
12 Application ISC Dhcp 3.0.1 Rc13 Version Details Vulnerabilities
13 Application ISC Dhcp 3.0.1 RC5 Version Details Vulnerabilities
14 Application ISC Dhcp 3.0.1 RC9 Version Details Vulnerabilities
15 Application ISC Dhcp 3.0.2 RC3 Version Details Vulnerabilities
16 Application ISC Dhcp 3.0.2 Version Details Vulnerabilities
17 Application ISC Dhcp 3.0.2 B1 Version Details Vulnerabilities
18 Application ISC Dhcp 3.0.2 RC1 Version Details Vulnerabilities
19 Application ISC Dhcp 3.0.2 RC2 Version Details Vulnerabilities
20 Application ISC Dhcp 3.0.3 B2 Version Details Vulnerabilities
21 Application ISC Dhcp 3.0.3 B3 Version Details Vulnerabilities
22 Application ISC Dhcp 3.0.3 Version Details Vulnerabilities
23 Application ISC Dhcp 3.0.3 B1 Version Details Vulnerabilities
24 Application ISC Dhcp 3.0.4 B1 Version Details Vulnerabilities
25 Application ISC Dhcp 3.0.4 Version Details Vulnerabilities
26 Application ISC Dhcp 3.0.4 B3 Version Details Vulnerabilities
27 Application ISC Dhcp 3.0.4 B2 Version Details Vulnerabilities
28 Application ISC Dhcp 3.0.4 RC1 Version Details Vulnerabilities
29 Application ISC Dhcp 3.0.5 Version Details Vulnerabilities
30 Application ISC Dhcp 3.0.5 RC1 Version Details Vulnerabilities
31 Application ISC Dhcp 3.0.6 RC1 Version Details Vulnerabilities
32 Application ISC Dhcp 3.1-esv Version Details Vulnerabilities
33 Application ISC Dhcp 3.1.0 B2 Version Details Vulnerabilities
34 Application ISC Dhcp 3.1.0 B1 Version Details Vulnerabilities
35 Application ISC Dhcp 3.1.0 RC1 Version Details Vulnerabilities
36 Application ISC Dhcp 3.1.0 A1 Version Details Vulnerabilities
37 Application ISC Dhcp 3.1.0 Version Details Vulnerabilities
38 Application ISC Dhcp 3.1.0 A2 Version Details Vulnerabilities
39 Application ISC Dhcp 3.1.0 A3 Version Details Vulnerabilities
40 Application ISC Dhcp 3.1.1 RC1 Version Details Vulnerabilities
41 Application ISC Dhcp 3.1.1 RC2 Version Details Vulnerabilities
42 Application ISC Dhcp 3.1.2 RC1 Version Details Vulnerabilities
43 Application ISC Dhcp 3.1.2 Version Details Vulnerabilities
44 Application ISC Dhcp 3.1.2 B1 Version Details Vulnerabilities
45 Application ISC Dhcp 3.1.3 B1 Version Details Vulnerabilities
46 Application ISC Dhcp 3.1.3 RC1 Version Details Vulnerabilities
47 Application ISC Dhcp 3.1.3 Version Details Vulnerabilities
48 Application ISC Dhcp 4.1-esv Version Details Vulnerabilities
49 Application ISC Dhcp 4.1-esv RC1 Version Details Vulnerabilities
50 Application ISC Dhcp 4.2.0 B1 Version Details Vulnerabilities
51 Application ISC Dhcp 4.2.0 B2 Version Details Vulnerabilities
52 Application ISC Dhcp 4.2.0 P1 Version Details Vulnerabilities
53 Application ISC Dhcp 4.2.0 RC1 Version Details Vulnerabilities
54 Application ISC Dhcp 4.2.0 A1 Version Details Vulnerabilities
55 Application ISC Dhcp 4.2.0 Version Details Vulnerabilities
56 Application ISC Dhcp 4.2.0 A2 Version Details Vulnerabilities
57 Application ISC Dhcp 4.2.1 B1 Version Details Vulnerabilities
58 Application ISC Dhcp 4.2.1 RC1 Version Details Vulnerabilities
59 Application ISC Dhcp 4.2.1 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
ISC Dhcp 59

- References For CVE-2011-0997

http://www.vupen.com/english/advisories/2011/0926
VUPEN ADV-2011-0926
http://www.vupen.com/english/advisories/2011/0886
VUPEN ADV-2011-0886
http://www.kb.cert.org/vuls/id/107886
CERT-VN VU#107886
https://www.isc.org/software/dhcp/advisories/cve-2011-0997 CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=689832 CONFIRM
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057888.html
FEDORA FEDORA-2011-4897
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/058279.html
FEDORA FEDORA-2011-4934
http://marc.info/?l=bugtraq&m=133226187115472&w=2
HP HPSBMU02752
http://secunia.com/advisories/44037
SECUNIA 44037
http://secunia.com/advisories/44103
SECUNIA 44103
http://secunia.com/advisories/44090
SECUNIA 44090
http://secunia.com/advisories/44089
SECUNIA 44089
http://secunia.com/advisories/44048
SECUNIA 44048
http://secunia.com/advisories/44180
SECUNIA 44180
http://secunia.com/advisories/44127
SECUNIA 44127
http://security.gentoo.org/glsa/glsa-201301-06.xml
GENTOO GLSA-201301-06
http://securitytracker.com/id?1025300
SECTRACK 1025300
http://www.debian.org/security/2011/dsa-2216
DEBIAN DSA-2216
http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.593345
SLACKWARE SSA:2011-097-01
http://www.osvdb.org/71493
OSVDB 71493
http://www.mandriva.com/security/advisories?name=MDVSA-2011:073
MANDRIVA MDVSA-2011:073
http://www.debian.org/security/2011/dsa-2217
DEBIAN DSA-2217
http://www.ubuntu.com/usn/USN-1108-1
UBUNTU USN-1108-1
http://www.redhat.com/support/errata/RHSA-2011-0428.html
REDHAT RHSA-2011:0428
http://www.redhat.com/support/errata/RHSA-2011-0840.html
REDHAT RHSA-2011:0840
http://www.securityfocus.com/bid/47176
BID 47176 ISC DHCP 'dhclient' Shell Characters in Response Remote Code Execution Vulnerability Release Date:2013-02-11
http://www.vupen.com/english/advisories/2011/0879
VUPEN ADV-2011-0879
http://www.vupen.com/english/advisories/2011/0909
VUPEN ADV-2011-0909
http://www.vupen.com/english/advisories/2011/1000
VUPEN ADV-2011-1000
http://www.vupen.com/english/advisories/2011/0915
VUPEN ADV-2011-0915
http://www.vupen.com/english/advisories/2011/0965
VUPEN ADV-2011-0965
http://xforce.iss.net/xforce/xfdb/66580
XF iscdhcp-dhclient-command-execution(66580)

- Metasploit Modules Related To CVE-2011-0997

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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