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Vulnerability Details : CVE-2009-1893

The configtest function in the Red Hat dhcpd init script for DHCP 3.0.1 in Red Hat Enterprise Linux (RHEL) 3 allows local users to overwrite arbitrary files via a symlink attack on an unspecified temporary file, related to the "dhcpd -t" command.
Publish Date : 2009-07-17 Last Update Date : 2010-08-21
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- CVSS Scores & Vulnerability Types

CVSS Score
6.9
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 Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 59

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
5.6
AV:L/AC:L/Au:N/C:N/I:P/A:C 2006-04-11 2009-07-14
If you are a vendor and you have additional data which can be automatically imported into our database, please contact admin @ cvedetails.com

- Related OVAL Definitions

Title Definition Id Class Family
Red Hat dhcpd init Script Symlink Flaw Lets Local Users Gain Elevated Privileges oval:org.mitre.oval:def:6440 unix
RHSA-2009:1154: dhcp security update (Critical) oval:com.redhat.rhsa:def:20091154 unix
The configtest function in the Red Hat dhcpd init script for DHCP 3.0.1 in Red Hat Enterprise Linux (RHEL) 3 allows loca... oval:org.mitre.oval:def:11597 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-2009-1893

# Product Type Vendor Product Version Update Edition Language
1 Application ISC Dhcp 3.0.1 RC8 Version Details Vulnerabilities
2 Application ISC Dhcp 3.0.1 RC1 Version Details Vulnerabilities
3 Application ISC Dhcp 3.0.1 Rc10 Version Details Vulnerabilities
4 Application ISC Dhcp 3.0.1 RC9 Version Details Vulnerabilities
5 Application ISC Dhcp 3.0.1 RC5 Version Details Vulnerabilities
6 Application ISC Dhcp 3.0.1 Rc12 Version Details Vulnerabilities
7 Application ISC Dhcp 3.0.1 RC2 Version Details Vulnerabilities
8 Application ISC Dhcp 3.0.1 Rc13 Version Details Vulnerabilities
9 Application ISC Dhcp 3.0.1 RC6 Version Details Vulnerabilities
10 Application ISC Dhcp 3.0.1 Rc14 Version Details Vulnerabilities
11 Application ISC Dhcp 3.0.1 RC7 Version Details Vulnerabilities
12 Application ISC Dhcp 3.0.1 Rc11 Version Details Vulnerabilities
13 OS Redhat Enterprise Linux 3.0 Version Details Vulnerabilities
14 OS Redhat Enterprise Linux 3.0 AS Version Details Vulnerabilities
15 OS Redhat Enterprise Linux 3.0 ES Version Details Vulnerabilities
16 OS Redhat Enterprise Linux 3.0 WS Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
ISC Dhcp 12
Redhat Enterprise Linux 4

- References For CVE-2009-1893

http://secunia.com/advisories/35831
SECUNIA 35831
http://www.redhat.com/support/errata/RHSA-2009-1154.html
REDHAT RHSA-2009:1154
http://securitytracker.com/id?1022554
SECTRACK 1022554
http://www.securityfocus.com/bid/35670
BID 35670 ISC DHCP 'dhcpd -t' Command Insecure Temporary File Creation Vulnerability Release Date:2010-01-08
http://xforce.iss.net/xforce/xfdb/51718
XF dhcp-dhcpdt-symlink(51718)
https://bugzilla.redhat.com/show_bug.cgi?id=510024 CONFIRM

- Metasploit Modules Related To CVE-2009-1893

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


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