VDB-22569 · CVE-2005-0068 · BID 13124

TCP Error Message denial of service

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability was found in TCP (affected version unknown). It has been classified as problematic. This affects an unknown functionality of the component Error Message Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

The original design of ICMP does not require authentication for host-generated ICMP error messages, which makes it easier for attackers to forge ICMP error messages for specific TCP connections and cause a denial of service, as demonstrated using (1) blind connection-reset attacks with forged "Destination Unreachable" messages, (2) blind throughput-reduction attacks with forged "Source Quench" messages, or (3) blind throughput-reduction attacks with forged ICMP messages that cause the Path MTU to be reduced. NOTE: CVE-2004-0790, CVE-2004-0791, and CVE-2004-1060 have been SPLIT based on different attacks; CVE-2005-0065, CVE-2005-0066, CVE-2005-0067, and CVE-2005-0068 are related identifiers that are SPLIT based on the underlying vulnerability. While CVE normally SPLITs based on vulnerability, the attack-based identifiers exist due to the variety and number of affected implementations and solutions that address the attacks instead of the underlying vulnerabilities.

The weakness was shared 12/22/2004 by Fernando Gont (Website). The advisory is shared at gont.com.ar. This vulnerability is uniquely identified as CVE-2005-0068 since 01/13/2005. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed in ANSI C. The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 48985 (Crafted ICMP Messages Can Cause Denial of Service - Cisco Systems), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43278 (Cisco IOS Crafted ICMP Messages Denial of Service Vulnerability (cisco-sa-20050412-icmp)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Attack attempts may be identified with Snort ID 396.

The vulnerability is also documented in the vulnerability database at Tenable (48985).



CPE 2.3info

CPE 2.2info


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VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.0
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Class: Denial of service
CWE: CWE-404

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Programming Language: 🔍
Download: 🔍

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Nessus ID: 48985
Nessus Name: Crafted ICMP Messages Can Cause Denial of Service - Cisco Systems
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Threat Intelligenceinfo

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Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
Snort ID: 396
Snort Message: PROTOCOL-ICMP Destination Unreachable Fragmentation Needed and DF bit was set
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12/22/2004 🔍
12/22/2004 +0 days 🔍
01/13/2005 +22 days 🔍
04/12/2005 +89 days 🔍
02/27/2015 +3608 days 🔍
06/30/2021 +2315 days 🔍


Advisory: gont.com.ar
Researcher: Fernando Gont
Status: Not defined

CVE: CVE-2005-0068 (🔍)
SecurityFocus: 13124 - Multiple Vendor TCP/IP Implementation ICMP Remote Denial Of Service Vulnerabilities

scip Labs: https://www.scip.ch/en/?labs.20161013


Created: 02/27/2015 11:35 PM
Updated: 06/30/2021 02:51 PM
Changes: 02/27/2015 11:35 PM (56), 07/16/2017 01:31 PM (7), 06/30/2021 02:51 PM (3)
Complete: 🔍
Cache ID: 44:4D5:40


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