SSH: OpenSSH sshd Identical Blocks Denial of Service
This signature detects attempts to exploit a known vulnerability against OpenSSH. A successful attack can result in a denial-of-service condition.
Extended Description
OpenSSH is prone to a remote denial-of-service vulnerability because it fails to properly handle incoming duplicate blocks. Remote attackers may exploit this issue to consume excessive CPU resources, potentially denying service to legitimate users. This issue occurs only when OpenSSH is configured to accept SSH Version One traffic.
Affected Products
Blue_coat_systems proxysg,Freebsd freebsd
Short Name
SSH:OPENSSH:BLOCK-DOS
Severity
Major
Recommended
False
Recommended Action
Drop
Category
SSH
Keywords
Blocks CVE-2006-4924 Denial Identical OpenSSH Service bid:20216 of sshd
Release Date
09/27/2010
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
3339
False Positive
Unknown
Vendors
Red_hat
Blue_coat_systems
Sco
Suse
Ibm
Gentoo
Globus
Openssh
Rpath
Turbolinux
Avaya
Openpkg
Sgi
Slackware
Freebsd
Ubuntu
Mandriva
Openbsd
Sun
Debian
Apple
CVSS Score
7.8