24434 : Cisco ONS 15000 Series ACK Packet Saturation DoS
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Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
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Timeline

Disclosure Date
2006-04-05

Keywords

CSCei45910

Description

Cisco ONS 15000 contains a flaw that may allow a remote denial of service against the device's control cards. The issue is triggered when connections are initiated to any of the administrative TCP ports listening on the server without completing a full three-way TCP handshake by omitting the final ACK packet. This will lead to a memory exhaustion problem and can result in a reset of the control cards on the platform, leading to a loss of availability.

Classification

Location: Remote / Network Access
Attack Type: Denial of Service
Impact: Loss of Availability
Exploit: Exploit Unknown
Disclosure: OSVDB Verified

Technical

This vulnerability only applies when IP is configured on the LAN interface. This is the default setting.

Solution

Upgrade to the software versions released and detailed by the vendor, as they have been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Cisco Systems, Inc.	Optical Networking System	15310-CL Series
		15327 Series
		15454 MSPP
		15454 MSTP
		15600 Series

References

Security Tracker: 1015872
Bugtraq ID: 17384
Secunia Advisory ID: 19553
CVE ID: 2006-1670 (see also: NVD)
Related OSVDB ID: 24435 24436 24437 24438
VUPEN Advisory: ADV-2006-1256
Keyword: CSCei45910
Mail List Post: http://archives.neohapsis.com/archives/fulldisclosure/2006-04/0116.html
Other Advisory URL: http://www.cisco.com/warp/public/707/cisco-sa-20060405-ons.shtml

Credit

Unknown or Incomplete

CVSSv2 Score

CVSSv2 Base Score = 7.8
Source: nvd.nist.gov | Generated: 2006-04-07 | Disagree?

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

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