Cisco ONS multiple devices ACK denial of service
| cisco-ons-ack-dos (15265) |  Medium 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.
Consequences:
Denial of Service
Remedy:
Refer to Cisco Security Advisory 2004 February 19 1700 UTC (GMT) for workaround information or information on obtaining a software upgrade. See References.
References:
- Cisco Systems Inc. Security Advisory, 2004 February 19 1700 UTC (GMT): Cisco ONS 15327, ONS 15454, ONS 15454 SDH, and ONS 15600 Vulnerabilities.
- 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
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
Reported:
Feb 19, 2004
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