Cisco PIX 7.2 DHCP Server denial of service

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.1$0-$5k0.00

A vulnerability has been found in Cisco PIX 7.2 (Firewall Software) and classified as critical. Affected by this vulnerability is an unknown part of the component DHCP Server. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

The DHCP relay agent in Cisco Adaptive Security Appliance (ASA) and PIX 7.2 allows remote attackers to cause a denial of service (dropped packets) via a DHCPREQUEST or DHCPINFORM message that causes multiple DHCPACK messages to be sent from DHCP servers to the agent, which consumes the memory allocated for a local buffer. NOTE: this issue only occurs when multiple DHCP servers are used.

The bug was discovered 05/02/2007. The weakness was released 05/02/2007 by Lisa Sittler and Grant Deffenbaugh with CERT/CC as confirmed advisory (CERT.org). It is possible to read the advisory at kb.cert.org. This vulnerability is known as CVE-2007-2461 since 05/02/2007. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at X-Force (34026). Entries connected to this vulnerability are available at 36574, 36573 and 36572.

Productinfo

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Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.5
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/02/2007 🔍
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05/03/2007 +0 days 🔍
05/03/2007 +0 days 🔍
05/08/2007 +4 days 🔍
03/13/2015 +2866 days 🔍
07/18/2019 +1588 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: kb.cert.org
Researcher: Lisa Sittler, Grant Deffenbaugh
Organization: CERT/CC
Status: Confirmed

CVE: CVE-2007-2461 (🔍)
X-Force: 34026
SecurityTracker: 1017999
Vulnerability Center: 15016 - [cisco-sr-20070502-pix] Cisco ASA and PIX 7.2 DHCP Relay Agent Remote DoS, High
SecurityFocus: 23763 - Cisco PIX/ASA DHCP Relay Remote Denial of Service Vulnerability
Secunia: 25109
OSVDB: 35330 - Cisco PIX / ASA DHCP Relay Agent Crafted Message Remote DoS
Vupen: ADV-2007-1635

See also: 🔍

Entryinfo

Created: 03/13/2015 14:56
Updated: 07/18/2019 16:55
Changes: 03/13/2015 14:56 (70), 07/18/2019 16:55 (4)
Complete: 🔍

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