National Cyber Awareness System

Vulnerability Summary for CVE-2007-4632

Overview

Cisco IOS 12.2E, 12.2F, and 12.2S places a "no login" line into the VTY configuration when an administrator makes certain changes to a (1) VTY/AUX or (2) CONSOLE setting on a device without AAA enabled, which allows remote attackers to bypass authentication and obtain a terminal session, a different vulnerability than CVE-1999-0293 and CVE-2005-2105.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

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External Source: CISCO

Name: 20070829 VTY Authentication Bypass Vulnerability

Type: Patch Information

Hyperlink:http://www.cisco.com/en/US/products/products_security_response09186a00808ae4ca.html

External Source: BID

Name: 25482

Hyperlink:http://www.securityfocus.com/bid/25482

External Source: OVAL

Name: oval:org.mitre.oval:def:5866

Hyperlink:http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:5866

References to Check Content

Identifier:oval:org.mitre.oval:def:5866

Check System:http://oval.mitre.org/XMLSchema/oval-definitions-5

Hyperlink:http://oval.mitre.org/repository/data/DownloadDefinition?id=oval:org.mitre.oval:def:5866