6.9
MEDIUM
CVE-2009-1893
Red Hat DHCP symlink overwrite vulnerability
Description

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.

INFO

Published Date :

July 17, 2009, 4:30 p.m.

Last Modified :

Feb. 13, 2023, 1:17 a.m.

Source :

[email protected]

Remotely Exploitable :

No

Impact Score :

10.0

Exploitability Score :

3.4
Affected Products

The following products are affected by CVE-2009-1893 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Redhat enterprise_linux
1 Isc dhcp
: Total Affected Vendor : 2 | Products : 2
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2009-1893.

URL Resource
http://secunia.com/advisories/35831 Vendor Advisory
http://securitytracker.com/id?1022554
http://www.redhat.com/support/errata/RHSA-2009-1154.html Vendor Advisory
http://www.securityfocus.com/bid/35670
https://bugzilla.redhat.com/show_bug.cgi?id=510024
https://exchange.xforce.ibmcloud.com/vulnerabilities/51718
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11597
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6440

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2009-1893 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2009-1893 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 13, 2023

    Action Type Old Value New Value
    Changed Description CVE-2009-1893 dhcp: insecure temporary file use in the dhcpd init script 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.
    Removed CVSS V2 Red Hat, Inc. (AV:L/AC:L/Au:N/C:N/I:P/A:C)
    Removed Reference https://access.redhat.com/errata/RHSA-2009:1154 [No Types Assigned]
    Removed Reference https://access.redhat.com/security/cve/CVE-2009-1893 [No Types Assigned]
  • CVE Modified by [email protected]

    Feb. 02, 2023

    Action Type Old Value New Value
    Changed Description 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. CVE-2009-1893 dhcp: insecure temporary file use in the dhcpd init script
    Added CVSS V2 Red Hat, Inc. (AV:L/AC:L/Au:N/C:N/I:P/A:C)
    Added Reference https://access.redhat.com/errata/RHSA-2009:1154 [No Types Assigned]
    Added Reference https://access.redhat.com/security/cve/CVE-2009-1893 [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 29, 2017

    Action Type Old Value New Value
    Removed Reference http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:6440 [No Types Assigned]
    Removed Reference http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:11597 [No Types Assigned]
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6440 [No Types Assigned]
    Added Reference https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11597 [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 17, 2017

    Action Type Old Value New Value
    Removed Reference http://xforce.iss.net/xforce/xfdb/51718 [No Types Assigned]
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/51718 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jul. 17, 2009

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2009-1893 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2009-1893 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.05635

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability
: