ISS Protection Brief: Multiple Vulnerabilities in Cisco IOS

From: X-Force (
Date: 01/27/05

Date: Thu, 27 Jan 2005 16:59:51 -0500 (EST)


Internet Security Systems Protection Brief
January 27, 2005

Multiple Vulnerabilities in Cisco IOS


X-Force is tracking multiple vulnerabilities that affect Cisco.s Internetwork
Operating System (IOS). These vulnerabilities have the potential to cause
operating system reloads on Cisco routers. Cisco routers would cease to
route information during the time period required for reload, and a
sustained attack could result in a long-term denial of service (DoS)

Business Impact:

Cisco routers are used to relay information across the vast majority
of networks, and are a key portion of the core infrastructure of most
networks including the Internet at large. A denial of service attack
against Cisco routers could result in large-scale network outages on
either side of the affected router. Network outages of this nature
would affect all business processes relying on networked technology.

For the complete X-Force Protection Alert, please visit:


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that protect against Internet threats. An established world leader
in security since 1994, ISS delivers proven cost efficiencies and
reduces regulatory and business risk across the enterprise for
more than 11,000 customers worldwide. ISS products and services
are based on the proactive security intelligence conducted by ISS.
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authority in vulnerability and threat research. Headquartered
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