National Vulnerability Database (NVD) National Vulnerability Database (CVE-2012-2213)

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NVD is the U.S. government repository of standards based vulnerability management data. This data enables automation of vulnerability management, security measurement, and compliance (e.g. FISMA).

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NVD contains:

CVE Vulnerabilities: 56440
Checklists: 221
US-CERT Alerts: 246
US-CERT Vuln Notes: 2721
OVAL Queries: 8140
CPE Names: 73311

Last updated: Fri May 24 14:54:53 EDT 2013

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NIST Security Configuration Checklists - CSD

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Vulnerability Summary for CVE-2012-2213

Original release date:04/28/2012

Last revised:04/30/2012

Source: US-CERT/NIST

Overview

** DISPUTED ** Squid 3.1.9 allows remote attackers to bypass the access configuration for the CONNECT method by providing an arbitrary allowed hostname in the Host HTTP header. NOTE: this issue might not be reproducible, because the researcher is unable to provide a squid.conf file for a vulnerable system, and the observed behavior is consistent with a squid.conf file that was (perhaps inadvertently) designed to allow access based on a "req_header Host" acl regex that matches www.uol.com.br.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:5.0 (MEDIUM) (AV:N/AC:L/Au:N/C:P/I:N/A:N) (legend)

Impact Subscore: 2.9

Exploitability Subscore: 10.0

CVSS Version 2 Metrics:

Access Vector: Network exploitable

Access Complexity: Low

Authentication: Not required to exploit

Impact Type:Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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External Source: BUGTRAQ

Name: 20120421 Re: Squid URL Filtering Bypass

Hyperlink:http://archives.neohapsis.com/archives/bugtraq/2012-04/0165.html

External Source: BUGTRAQ

Name: 20120420 Re: Squid URL Filtering Bypass

Hyperlink:http://archives.neohapsis.com/archives/bugtraq/2012-04/0163.html

External Source: BUGTRAQ

Name: 20120419 RE: Squid URL Filtering Bypass

Hyperlink:http://archives.neohapsis.com/archives/bugtraq/2012-04/0146.html

External Source: BUGTRAQ

Name: 20120419 Re: Squid URL Filtering Bypass

Hyperlink:http://archives.neohapsis.com/archives/bugtraq/2012-04/0140.html