DHCP: ISC DHCP TCP Session Exhaustion Denial of Service
This signature detects attempts to exploit a known vulnerability against DHCP Server. A successful attack can result in a denial-of-service condition.
Extended Description
ISC DHCP 4.1.x before 4.1-ESV-R13 and 4.2.x and 4.3.x before 4.3.4 does not restrict the number of concurrent TCP sessions, which allows remote attackers to cause a denial of service (INSIST assertion failure or request-processing outage) by establishing many sessions.
Affected Products
Isc dhcp
Short Name
DHCP:RQST:ISC-DOS
Severity
Minor
Recommended
False
Recommended Action
None
Category
DHCP
Keywords
CVE-2016-2774 CVE-2017-3144 DHCP Denial Exhaustion ISC Service Session TCP of
Release Date
06/09/2016
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
3337
Port
TCP/7911
False Positive
Unknown
Vendors
Isc
Debian
Canonical
CVSS Score
7.1
5.0