ISC DHCP up to 4.2.1 input validation

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in ISC DHCP. This affects an unknown function. This manipulation causes input validation. This vulnerability is tracked as CVE-2011-2748. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in ISC DHCP (Network Management Software) and classified as critical. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

The server in ISC DHCP 3.x and 4.x before 4.2.2, 3.1-ESV before 3.1-ESV-R3, and 4.1-ESV before 4.1-ESV-R3 allows remote attackers to cause a denial of service (daemon exit) via a crafted DHCP packet.

The weakness was disclosed 08/15/2011 (Website). The advisory is shared at isc.org. This vulnerability is known as CVE-2011-2748. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 75466 (openSUSE Security Update : dhcp (openSUSE-SU-2011:1021-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 119502 (ISC DHCP Denial of Service Vulnerabilities (Deprecated)).

Upgrading to version 4.0.3 eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 12103.

The vulnerability is also documented in the databases at X-Force (69139), Tenable (75466), SecurityFocus (BID 49120†), SecurityTracker (ID 1025918†) and Vulnerability Center (SBV-32725†). The entry VDB-58298 is pretty similar. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 75466
Nessus Name: openSUSE Security Update : dhcp (openSUSE-SU-2011:1021-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 71155
OpenVAS Name: Debian Security Advisory DSA 2292-1 (isc-dhcp)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: DHCP 4.0.3
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

07/14/2011 🔍
08/10/2011 +27 days 🔍
08/10/2011 +0 days 🔍
08/15/2011 +5 days 🔍
08/15/2011 +0 days 🔍
08/16/2011 +1 days 🔍
06/13/2014 +1032 days 🔍
03/23/2015 +283 days 🔍
12/02/2024 +3542 days 🔍

Sourcesinfo

Vendor: isc.org

Advisory: USN-1190-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-2748 (🔍)
GCVE (CVE): GCVE-0-2011-2748
GCVE (VulDB): GCVE-100-58297

OVAL: 🔍

X-Force: 69139
SecurityFocus: 49120 - ISC DHCP Multiple Denial of Service Vulnerabilities
Secunia: 45582
SecurityTracker: 1025918
Vulnerability Center: 32725 - ISC DHCP 3.x and 4.x Remote DoS Vulnerability via Crafted DHCP Packet, High

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/02/2024 03:21
Changes: 03/23/2015 16:50 (68), 03/29/2017 18:23 (9), 11/18/2021 01:44 (6), 11/18/2021 01:51 (1), 11/18/2021 01:59 (1), 12/02/2024 03:21 (17)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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