Vulnerability Note VU#800384

Multiple Cisco ONS control cards fail to properly handle malformed TCP packets

Original Release date: 27 Jul 2004 | Last revised: 05 Aug 2004

Overview

A vulnerability exists in multiple control cards used by Cisco ONS devices. This vulnerability could allow a remote attacker to cause a denial-of-service condition.

Description

Cisco's Optical Networking product line consists of a series of devices designed to offer high-bandwidth data services. These optical devices are managed through a series of control cards, which vary depending on the model of the device. There is a vulnerability in the way the XTC, TCC/TCC+/TCC2, TCCi/TCC2, and TSC control cards handle malformed TCP packets. By sending specially crafted TCP packets to a vulnerable optical device, a remote attacker could cause the control cards to reset.

Vulnerable

    Cisco ONS 15327 Edge Optical Transport Platform releases:
  • 4.6(0) and 4.6(1)
  • 4.1(0) to 4.1(3)
  • 4.0(0) to 4.0(2)
  • 3.x(x) and earlier
    Cisco ONS 15454 Optical Transport Platform releases:
  • 4.6(0) and 4.6(1)
  • 4.5(x)
  • 4.1(0) to 4.1(3)
  • 4.0(0) to 4.0(2)
  • 3.x(x)
  • earlier than 2.3(5)
    Cisco ONS 15454 SDH Multiplexer Platform releases:
  • 4.6(0) and 4.6(1)
  • 4.5(x)
  • 4.1(0) to 4.1(3)
  • 4.0(0) to 4.0(2)
  • 3.x(x)
  • earlier than 2.3(5)
    Cisco ONS 15600 Multiservice Switching Platform
  • 1.x(x)

Impact

A remote, unauthenticated attacker could cause control cards to reset on an affected optical device. Repeated exploitation of this vulnerability could result in a denial of service.
For more information on the impact of this vulnerability, please refer to the "Impact" section of the Cisco Advisory.

Solution

Upgrade
Please refer to the "Software Versions and Fixes" section of the Cisco Advisory for more information on upgrading.

Systems Affected (Learn More)

VendorStatusDate NotifiedDate Updated
Cisco Systems Inc.Affected-27 Jul 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

This vulnerability was reported by the Cisco Systems Product Security Incident Response Team (PSIRT).

This document was written by Damon Morda based on information provided by Cisco.

Other Information

  • CVE IDs: Unknown
  • Date Public: 21 Jul 2004
  • Date First Published: 27 Jul 2004
  • Date Last Updated: 05 Aug 2004
  • Severity Metric: 8.03
  • Document Revision: 14

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