ISC DHCP 2.0pl5 Cluster Identifier supersede_lease resource management

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability has been found in ISC DHCP 2.0pl5 and classified as critical. Impacted is the function supersede_lease of the component Cluster Identifier. This manipulation causes resource management. This vulnerability is registered as CVE-2006-3122. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in ISC DHCP 2.0pl5 (Network Management Software) and classified as critical. Affected by this vulnerability is the function supersede_lease of the component Cluster Identifier. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

The supersede_lease function in memory.c in ISC DHCP (dhcpd) server 2.0pl5 allows remote attackers to cause a denial of service (application crash) via a DHCPDISCOVER packet with a 32 byte client-identifier, which causes the packet to be interpreted as a corrupt uid and causes the server to exit with "corrupt lease uid."

The bug was discovered 07/28/2006. The weakness was published 08/04/2006 by Justin Winschief and Andrew Steets (Website). The advisory is shared at debian.org. This vulnerability is known as CVE-2006-3122 since 06/21/2006. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 22159 (ISC DHCP Server supersede_lease() Function DHCPDISCOVER Packet DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Denial of Service and running in the context r.

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at isc.org. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability. Attack attempts may be identified with Snort ID 8056. In this case the pattern c|82|Sc is used for detection. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 9010.

The vulnerability is also documented in the databases at X-Force (28301), Tenable (22159), SecurityFocus (BID 19348†), OSVDB (27774†) and Secunia (SA21655†). 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: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 22159
Nessus Name: ISC DHCP Server supersede_lease() Function DHCPDISCOVER Packet DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 57212
OpenVAS Name: Debian Security Advisory DSA 1143-1 (dhcp)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: isc.org

Snort ID: 8056
Snort Message: DOS ISC DHCP server 2 client_id length denial of service attempt
Snort Pattern: 🔍
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

SourceFire IPS: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

06/21/2006 🔍
07/28/2006 +37 days 🔍
08/04/2006 +7 days 🔍
08/04/2006 +0 days 🔍
08/04/2006 +0 days 🔍
08/04/2006 +0 days 🔍
08/04/2006 +0 days 🔍
08/04/2006 +0 days 🔍
08/04/2006 +0 days 🔍
08/07/2006 +2 days 🔍
08/09/2006 +2 days 🔍
08/25/2006 +16 days 🔍
08/28/2006 +3 days 🔍
06/24/2019 +4683 days 🔍

Sourcesinfo

Vendor: isc.org

Advisory: debian.org
Researcher: Justin Winschief, Andrew Steets
Status: Not defined

CVE: CVE-2006-3122 (🔍)
GCVE (CVE): GCVE-0-2006-3122
GCVE (VulDB): GCVE-100-2425
X-Force: 28301
SecurityFocus: 19348 - ISC Memory.C DHCP Server Denial Of Service Vulnerability
Secunia: 21655 - OpenBSD update for dhcpd, Less Critical
OSVDB: 27774 - ISC DHCP Server supersede_lease() Function DHCPDISCOVER Packet Remote DoS
SecurityTracker: 1016755
Vulnerability Center: 12467 - ISC DHCP Denial of Service via 32 Bytes Long Client-Identifier, High
Vupen: ADV-2006-3158

Entryinfo

Created: 08/04/2006 15:59
Updated: 06/24/2019 09:19
Changes: 08/04/2006 15:59 (98), 06/24/2019 09:19 (6)
Complete: 🔍
Cache ID: 216:EC4:103

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

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