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Last updated: 11/28/2014 3:40:42 PM

CVE Publication rate: 17.6

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Vulnerability Workload Index: 8.14
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National Cyber Awareness System

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

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External Source: BUGTRAQ
Name: 20120419 RE: Squid URL Filtering Bypass
External Source: BUGTRAQ
Name: 20120421 Re: Squid URL Filtering Bypass
External Source: BUGTRAQ
Name: 20120420 Re: Squid URL Filtering Bypass
External Source: BUGTRAQ
Name: 20120416 Squid URL Filtering Bypass
External Source: BUGTRAQ
Name: 20120419 Re: Squid URL Filtering Bypass
External Source: BUGTRAQ
Name: 20120418 Re: Squid URL Filtering Bypass

Vulnerable software and versions

+ Configuration 1
+ OR
* cpe:/a:squid-cache:squid:3.1.9

* Denotes Vulnerable Software
Changes related to vulnerability configurations

Technical Details

Vulnerability Type (View All)
  • Permissions, Privileges, and Access Control (CWE-264)