Cisco ONS multiple devices ACK denial of service

cisco-ons-ack-dos (15265) The risk level is classified as MediumMedium Risk

Description:

Multiple Cisco ONS devices are vulnerable to a denial of service. By establishing a connection to TCP port 1080 and sending an invalid response instead of the required ACK packet, which would complete the 3-way TCP handshake, a remote attacker could cause the device to reset.

Platforms Affected:

  • Cisco, ONS 15327 4.0
  • Cisco, ONS 15327 4.0(1)
  • Cisco, ONS 15327 4.0(2)
  • Cisco, ONS 15327 4.1(0)
  • Cisco, ONS 15327 4.1(1)
  • Cisco, ONS 15327 4.1(2)
  • Cisco, ONS 15454 Optical Transport Platform 4.0
  • Cisco, ONS 15454 Optical Transport Platform 4.0(1)
  • Cisco, ONS 15454 Optical Transport Platform 4.1
  • Cisco, ONS 15454 Optical Transport Platform 4.1(0)
  • Cisco, ONS 15454 Optical Transport Platform 4.1(1)
  • Cisco, ONS 15454 Optical Transport Platform 4.1(2)
  • Cisco, ONS 15454 Optical Transport Platform 4.1(3)
  • Cisco, ONS 15454SDH 4.0
  • Cisco, ONS 15454SDH 4.1(0)
  • Cisco, ONS 15454SDH 4.1(1)
  • Cisco, ONS 15454SDH 4.1(2)
  • Cisco, ONS 15454SDH 4.5
  • Cisco, ONS 15600 1.0

Remedy:

Refer to Cisco Security Advisory 2004 February 19 1700 UTC (GMT) for workaround information or information on obtaining a software upgrade. See References.

Consequences:

Denial of Service

References:

  • Cisco Systems Inc. Security Advisory, 2004 February 19 1700 UTC (GMT), Cisco ONS 15327, ONS 15454, ONS 15454 SDH, and ONS 15600 Vulnerabilities at http://www.cisco.com/warp/public/707/cisco-sa-20040219-ONS.shtml.
  • BID-9699: Cisco ONS Platform Vulnerabilities
  • CVE-2004-0307: Cisco ONS 15327 before 4.1(3), ONS 15454 before 4.6(1), and ONS 15454 SD before 4.1(3) allows remote attackers to cause a denial of service (reset) by not sending the ACK portion of the TCP three-way handshake and sending an invalid response instead.
  • OSVDB ID: 4009: Cisco ONS 15000 Control Card DoS

Reported:

Feb 19, 2004

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