ISC DHCP zero length denial of service
| dhcp-zero-length-dos (59222) |  Medium Risk |
Description:
ISC DHCP is vulnerable to a denial of service, caused by an error when processing malicious requests. By sending a specially-crafted request containing a zero length client ID, a remote attacker could exploit this vulnerability to cause the server to crash.
*CVSS:
| Base Score: | 5 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | None |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | Partial |
| Temporal Score: | 3.9 |
| Exploitability: | Proof-of-Concept |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Denial of Service
Remedy:
Upgrade to the latest version of DHCP (4.1.1-P1 or 4.0.2-P1 or later), available from the Internet Systems Consortium Web site. See References.
References:
- Internet Systems Consortium Web site : Version 4.0.2-P1.
- Offensive Security Exploit Database [07-03-2010]: ISC-DHCPD Denial of Service.
- BID-40775: ISC DHCP Server find_length() Zero-Length Client Identifier Remote Denial Of Service Vulnerability
- CVE-2010-2156: ISC DHCP 4.1 before 4.1.1-P1 and 4.0 before 4.0.2-P1 allows remote attackers to cause a denial of service (server exit) via a zero-length client ID.
- MDVSA-2010:114: dhcp
- SA40116: ISC DHCP find_length() Zero-Length Client Identifier Denial of Service
- SECTRACK ID: 1024093: ISC DHCP Zero Length Client ID Processing Error Lets Remote Users Deny Service
- US-CERT VU#541921: ISC DHCP server fails to handle zero-length client identifier
- VUPEN/ADV-2010-1372: ISC DHCP Zero Length Client ID Remote Denial of Service Vulnerability
Platforms Affected:
- ISC DHCP 4.0.0
- ISC DHCP 4.0.1 rc1
- ISC DHCP 4.0.1
- ISC DHCP 4.0.1 B1
- ISC DHCP 4.0.2 B1
- ISC DHCP 4.0.2 B2
- ISC DHCP 4.0.2 B3
- ISC DHCP 4.0.2 rc1
- ISC DHCP 4.0.2
- ISC DHCP 4.1
- ISC DHCP 4.1.1 B3
- ISC DHCP 4.1.1 B2
- ISC DHCP 4.1.1 rc1
- ISC DHCP 4.1.1 B1
- ISC DHCP 4.1.1
- Mandriva Linux 2009.1
- Mandriva Linux 2009.1 X86_64
- Mandriva Linux 2010 X86_64
- Mandriva Linux 2010
Reported:
May 17, 2010
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For corrections or additions please email xforce@iss.net
* According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.