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Vulnerability Details : CVE-2009-0692

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.
Publish Date : 2009-07-14 Last Update Date : 2010-08-21
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- CVSS Scores & Vulnerability Types

CVSS Score
10.0
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
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 CodeOverflow
CWE ID 119

- Vendor Statements

This issue affected the dhcp packages as shipped with Red Hat Enterprise Linux 3 and 4. Updated packages to correct this issue are available via Red Hat Network: https://rhn.redhat.com/errata/CVE-2009-0692.html This issue did not affect the dhcp packages as shipped with Red Hat Enterprise Linux 5 due to the use of FORTIFY_SOURCE protection mechanism that changes the exploitability of the issue into a controlled application termination.
Source: Redhat

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat critical
8.3
AV:A/AC:L/Au:N/C:C/I:C/A:C 2009-06-23 2009-07-14
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- Related OVAL Definitions

Title Definition Id Class Family
CVE-2009-0692 oval:org.opensuse.security:def:20090692 unix
DHCP dhclient Stack Overflow in script_write_params() Lets Remote Users Execute Arbitrary Code oval:org.mitre.oval:def:5941 unix
DSA-1833 dhcp3 -- several vulnerabilities oval:org.mitre.oval:def:8056 unix
DSA-1833-1 dhcp3 -- several oval:org.mitre.oval:def:12854 unix
DSA-1833-2 dhcp3 -- several oval:org.mitre.oval:def:13715 unix
RHSA-2009:1136: dhcp security update (Critical) oval:com.redhat.rhsa:def:20091136 unix
RHSA-2009:1154: dhcp security update (Critical) oval:com.redhat.rhsa:def:20091154 unix
Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0... oval:org.mitre.oval:def:10758 unix
USN-803-2 -- dhcp3 vulnerability oval:org.mitre.oval:def:12418 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-2009-0692

# Product Type Vendor Product Version Update Edition Language
1 Application ISC Dhcp 2.0 Version Details Vulnerabilities
2 Application ISC Dhcp 3.0 Version Details Vulnerabilities
3 Application ISC Dhcp 3.1 Version Details Vulnerabilities
4 Application ISC Dhcp 4.0 Version Details Vulnerabilities
5 Application ISC Dhcp 4.1.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
ISC Dhcp 5

- References For CVE-2009-0692

http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00003.html
SUSE SUSE-SA:2009:037
http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-010.txt.asc
NETBSD NetBSD-SA2009-010
http://itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c02286083
HP HPSBMA02554
http://secunia.com/advisories/35785
SECUNIA 35785
http://secunia.com/advisories/35829
SECUNIA 35829
http://secunia.com/advisories/35830
SECUNIA 35830
http://secunia.com/advisories/35831
SECUNIA 35831
http://secunia.com/advisories/35832
SECUNIA 35832
http://secunia.com/advisories/36457
SECUNIA 36457
http://secunia.com/advisories/35841
SECUNIA 35841
http://secunia.com/advisories/35849
SECUNIA 35849
http://secunia.com/advisories/35850
SECUNIA 35850
http://secunia.com/advisories/35851
SECUNIA 35851
http://secunia.com/advisories/35880
SECUNIA 35880
http://secunia.com/advisories/40551
SECUNIA 40551
http://secunia.com/advisories/37342
SECUNIA 37342
http://security.gentoo.org/glsa/glsa-200907-12.xml
GENTOO GLSA-200907-12
http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.561471
SLACKWARE SSA:2009-195-01
http://www.kb.cert.org/vuls/id/410676
CERT-VN VU#410676
https://www.isc.org/node/468 CONFIRM
https://www.redhat.com/archives/fedora-package-announce/2009-November/msg00340.html
FEDORA FEDORA-2009-9075
https://www.redhat.com/archives/fedora-package-announce/2009-August/msg01177.html
FEDORA FEDORA-2009-8344
https://www.isc.org/downloadables/12 CONFIRM
http://www.debian.org/security/2009/dsa-1833
DEBIAN DSA-1833
http://www.osvdb.org/55819
OSVDB 55819
http://www.mandriva.com/security/advisories?name=MDVSA-2009:151
MANDRIVA MDVSA-2009:151
http://www.securityfocus.com/bid/35668
BID 35668 ISC DHCP 'dhclient' 'script_write_params()' Stack Buffer Overflow Vulnerability Release Date:2010-07-13
http://www.redhat.com/support/errata/RHSA-2009-1154.html
REDHAT RHSA-2009:1154
http://www.redhat.com/support/errata/RHSA-2009-1136.html
REDHAT RHSA-2009:1136
http://www.securitytracker.com/id?1022548
SECTRACK 1022548
http://www.vupen.com/english/advisories/2009/1891
VUPEN ADV-2009-1891
http://www.vupen.com/english/advisories/2010/1796
VUPEN ADV-2010-1796
http://www.ubuntu.com/usn/usn-803-1
UBUNTU USN-803-1
https://bugzilla.redhat.com/show_bug.cgi?id=507717 CONFIRM

- Metasploit Modules Related To CVE-2009-0692

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


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