Cisco HSRP - Denial of Service
| Reporter | Title | Published | Views | Family All 5 |
|---|---|---|---|---|
 | CVE-2001-0741 | 1 Sep 200404:00 | – | cve |
 | CVE-2001-0741 | 1 Sep 200404:00 | – | cvelist |
 | EUVD-2001-0726 | 7 Oct 202500:30 | – | euvd |
 | CVE-2001-0741 | 18 Oct 200104:00 | – | nvd |
 | Hot Standby Router Protocol (HSRP) uses weak authentication | 13 Dec 200100:00 | – | cert |
source: https://www.securityfocus.com/bid/2684/info
Hot Standby Routing Protocol is an Internet Protocol based routing protocol implemented by Cisco Systems. It is designed to offer traffic rerouting services to networks when one router within a pool ceases to operate, and users of the network segment aren't using ICMP Router Discovery Protocol to find the new router handling traffic for their segment.
A problem in the Cisco Hot Standby Routing Protocol (HSRP) makes it possible to deny service to users of network resources. By eavesdropping on HSRP management messages sent over the network, it is possible to create a spoofed message that will reroute all network traffic to a particular system. By doing so, it is possible to prevent traffic from entering or leaving that network.
This problem makes it possible for system local to the network to deny service to legitmate users of that network segment.
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/20821.tgzData
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02 Sep 2012 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 22.1
EPSS0.01326