PT-2002-2774 · Cisco · Cisco Ios
Published
2002-12-31
·
Updated
2008-09-05
·
CVE-2002-2053
CVSS v2.0
5.0
Medium
| Vector | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Name of the Vulnerable Software and Affected Versions
Cisco IOS version 12.1
Description
The design of the Hot Standby Routing Protocol (HSRP), as implemented on Cisco IOS, allows remote attackers to cause a denial of service (CPU consumption) via a router with the same IP address as the interface on which HSRP is running, which causes a loop.
Recommendations
For Cisco IOS version 12.1, consider disabling the HSRP protocol as a temporary workaround until a patch is available. Restrict access to the interface on which HSRP is running to minimize the risk of exploitation.
Fix
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Related Identifiers
Affected Products
Cisco Ios