84552 : Cisco Nexus Operating System (NX-OS) High Availability (HA) Policy Reset Malformed Cisco Discovery Protocol (CDP) Packet Parsing Remote DoS
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Timeline

Disclosure Date
2011-07-29

Description

Cisco Nexus Operating System (NX-OS) contains a flaw that may allow a remote denial of service. The issue is triggered when an error occurs in the High Availability (HA) policy when it is configured for reset. With a malformed Cisco Discovery Protocol (CDP) packet, a remote attacker can cause a loss of availability for the system.

Classification

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

Solution

Upgrade to version 5.2(1) or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Cisco Systems, Inc.	Nexus Operating System (NX-OS)	4.2
		5.0
		5.1
		5.2

References

Security Tracker: 1027352
CVE ID: 2012-2469 (see also: NVD)
Secunia Advisory ID: 52094
Other Advisory URL: http://www.4salesbyself.com/troubleshooting-random-nexus-reboots.aspx
Vendor Specific News/Changelog Entry: http://www.cisco.com/en/US/docs/switches/datacenter/sw/5_x/nx-os/release/notes/52_nx-os_release_note.html

Credit

Not Available

CVSSv2 Score

CVSSv2 Base Score = 7.8
Source: nvd.nist.gov | Generated: 2012-08-07 | Disagree?

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