Vulnerability Note VU#119876

Ethereal contains multiple vulnerabilities in the EIGRP protocol dissector

Original Release date: 24 Mar 2004 | Last revised: 25 Mar 2004

Overview

Ethereal contains multiple vulnerabilities in the Enhanced Interior Gateway Routing Protocol (EIGRP) protocol dissector. These vulnerabilities could allow a remote, unauthenticated attacker to execute arbitrary code.

Description

Ethereal is a network traffic analysis package. It includes the ability to decode packets containing EIGRP data. There are two buffer overflow vulnerabilities in the way the EIGRP protocol dissector decodes packets containing EIGRP data. These vulnerabilities could be exploited by a remote, unauthenticated attacker by sending a specially crafted EIGRP packet containing overly long IP address values. Exploitation of these vulnerabilities could result in arbitrary code execution.

Impact

A remote, unauthenticated attacker could execute arbitrary code on the vulnerable system.

Solution

Upgrade

Upgrade to version 0.10.3 or later.

Note: Ethereal is considered BETA software at this time.


Disable Dissector

If you are unable to upgrade to version 0.10.3 or later, you can disable the EIGRP protocol dissector by performing the following actions in Ethereal:

(for Ethereal versions 0.8.x and 0.9.x)

    1) Select Edit->Protocols
    2) Deselect the EIGRP protocol dissector from the list

(for Ethereal versions 0.10.x)
    1) Select Analyze->Enabled Protocols
    2) Disable the EIGRP protocol dissector from the list by unchecking its "Status" checkbox

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
EtherealAffected-24 Mar 2004
If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A N/A

References

Credit

Ethereal credits Stefan Esser for reporting these vulnerabilities.

This document was written by Damon Morda.

Other Information

  • CVE IDs: CAN-2004-0176
  • Date Public: 22 Mar 2004
  • Date First Published: 24 Mar 2004
  • Date Last Updated: 25 Mar 2004
  • Severity Metric: 9.82
  • Document Revision: 17

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