Cisco IOS DOCSIS Community String Vulnerability
Secunia Advisory: SA21974
Release Date: 2006-09-21
Last Update: 2006-10-16
Popularity: 7,887 views

Critical:
Moderately critical
Impact: System access
Where: From local network
Solution Status: Vendor Patch

OS:Cisco IOS 12.x
Cisco IOS R12.x

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CVE reference:CVE-2006-4950


Description:
A vulnerability has been reported in Cisco IOS, which can be exploited by malicious people to compromise a vulnerable system.

The vulnerability is due to an error, which inadvertently enables an additional read-write community string for DOCSIS-compliant cable-capable devices when the device is configured for SNMP management. This may be exploited to gain full control of the device.

The vulnerability has been reported in the following devices running Cisco IOS:
* Cisco IAD2430 Integrated Access Device
* Cisco IAD2431 Integrated Access Device
* Cisco IAD2432 Integrated Access Device
* Cisco VG224 Analog Phone Gateway
* Cisco MWR 1900 Mobile Wireless Edge Router
* Cisco MWR 1941 Mobile Wireless Edge Router

Solution:
Fixes are available (see patch matrix in vendor advisory).
http://www.cisco.com/warp/public/707/cisco-sa-20060920-docsis.shtml

Provided and/or discovered by:
Reported by the vendor.

Changelog:
2006-09-26: Added CVE reference.
2006-10-16: Added link to US-CERT.

Original Advisory:
http://www.cisco.com/warp/public/707/cisco-sa-20060920-docsis.shtml

Other References:
US-CERT VU#123140:
http://www.kb.cert.org/vuls/id/123140


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