DHCP: ISC DHCP Server Zero Length Client ID Denial of Service

This signature detects attempts to exploit a known vulnerability in ISC DHCP Server. It is due to a design error while parsing request containing a zero length client identifier. Remote unauthenticated attackers can exploit this by sending crafted packets to the target DHCP server. A successful attack can result in a denial-of-service condition.

Extended Description

ISC DHCP Server is prone to a remote denial-of-service vulnerability. Attackers can exploit this issue to cause the server to terminate, thus denying service to legitimate users. Versions prior to ISC DHCP Server 4.0.2-P1 and 4.1.1-P1 are vulnerable.

Affected Products

Red_hat fedora

Short Name
DHCP:ISC-ZERO-LEN-DOS
Severity
Minor
Recommended
False
Recommended Action
Drop
Category
DHCP
Keywords
CVE-2010-2156 Client DHCP Denial ID ISC Length Server Service Zero bid:40775 of
Release Date
10/05/2010
Supported Platforms

srx-branch-12.3

srx-19.3

srx-branch-19.3

vsrx3bsd-19.2

srx-branch-19.4

vsrx-19.4

mx-12.3

mx-19.4

vmx-19.4

mx-19.3

vsrx3bsd-19.4

srx-19.4

vsrx-12.3

vmx-19.3

vsrx-19.2

srx-12.3

Sigpack Version
3375
False Positive
Unknown
Vendors

Mandriva

Red_hat

Isc

Pardus

CVSS Score

5.0

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