Cisco Various Products ICMP Message Handling Denial of Service - Secunia Advisories - Vulnerability Intelligence

Cisco Various Products ICMP Message Handling Denial of Service
Secunia Advisory:	SA14904	Advisory Toolbox: Issue ticket Save in to-do list Mark as handled Exploit information Download as PDF Review actions Add comment
Release Date:	2005-04-12
Last Update:	2005-04-13
Popularity:	17,750 views

Critical:	Less critical
Impact:	DoS
Where:	From remote
Solution Status:	Partial Fix

OS:	Cisco Content Services Switch 11000 Series (WebNS) Cisco Global Site Selector (GSS) 4480 1.x Cisco IOS 10.x Cisco IOS 11.x Cisco IOS 12.x Cisco IOS R11.x Cisco IOS R12.x Cisco IOS XR 3.x Cisco ONS 15000 Series Cisco PIX 6.x Cisco SAN-OS 1.x (MDS 9000 Switches)

Subscribe:	Instant alerts on relevant vulnerabilities

CVE reference:	CVE-2004-0790 CVE-2004-0791 CVE-2004-1060

Description: Fernando Gont has published an Internet-Draft describing how ICMP (Internet Control Message Protocol) can be exploited by malicious people to cause a DoS (Denial of Service). Cisco has acknowledged that various Cisco products are affected. The published Internet-Draft details three types of attacks, which utilize the following ICMP messages to cause a negative impact on TCP connections either terminating or originating from a vulnerable device. 1) ICMP "hard" error messages 2) ICMP "fragmentation needed and Don't Fragment (DF) bit set" messages (known as PMTUD attacks) 3) ICMP "source quench" messages These attacks can all be exploited to cause TCP connection resets, reduce the throughput in existing TCP connections, or consume large amounts of CPU and memory resources. Successful exploitation requires knowledge of IP address information of the source and destination of the TCP network connection.. NOTE: See the original advisory for a list of affected versions. Solution: See patch matrix in vendor advisory for information about fixes. http://www.cisco.com/warp/public/707/cisco-sa-20050412-icmp.shtml#software Provided and/or discovered by: Fernando Gont Changelog: 2005-04-13: Added link to US-CERT vulnerability note. Added CVE references. Original Advisory: Cisco: http://www.cisco.com/warp/public/707/cisco-sa-20050412-icmp.shtml NISCC: http://www.niscc.gov.uk/niscc/docs/al-20050412-00308.html ICMP attacks against TCP: http://www.gont.com.ar/drafts/icmp-attacks-against-tcp.html Other References: RFC1122 (Requirements for Internet Hosts -- Communication Layers): http://www.ietf.org/rfc/rfc1122.txt RFC1191 (Path MTU Discovery): http://www.ietf.org/rfc/rfc1191.txt US-CERT VU#222750: http://www.kb.cert.org/vuls/id/222750

Track this Secunia Advisory
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released. Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.

About this Secunia Advisory
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise. Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

Latest Advisories

Today

New advisories:	10
New vulnerabilities:	32
Updated advisories:	13

Less // 90 views

SemanticScuttle Cross-Site Scripting Vulnerabilities

Moderately // 102 views

Easyedit CMS Multiple SQL Injection Vulnerabilities

Highly // 101 views

Fedora update for thunderbird

Less // 117 views

IBM Workplace Web Content Management Cross-Site Scripting Vulnerabilities

Highly // 255 views

BitDefender Antivirus PDF Processing Memory Corruption Vulnerability

Moderately // 192 views

xt:Commerce SQL Injection Vulnerability

Less // 166 views

Softbiz Classifieds Script "msg" Cross-Site Scripting Vulnerability

Not // 245 views

Checkpoint VPN-1 Information Disclosure Vulnerability

Moderately // 218 views

Avaya CMS Solaris "sadmind" Buffer Overflow Vulnerability

Moderately // 247 views

EMC Control Center SAN Manager Multiple Vulnerabilities

Solutions | More...

Send Feedback to Secunia
If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com. Ideas, suggestions, and other feedback are most welcome.