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CVE-2015-5400

Good to know:

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Date: September 28, 2015

Squid before 3.5.6 does not properly handle CONNECT method peer responses when configured with cache_peer, which allows remote attackers to bypass intended restrictions and gain access to a backend proxy via a CONNECT request.

Language: C++

Severity Score

Related Resources (20)

http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
https://access.redhat.com/security/cve/CVE-2015-5400
http://www.squid-cache.org/Versions/v3/3.4/changesets/squid-3.4-13225.patch
http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183598.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2015-5400
https://security-tracker.debian.org/tracker/CVE-2015-5400
http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-13856.patch
http://www.debian.org/security/2015/dsa-3327
http://www.openwall.com/lists/oss-security/2015/07/17/14
http://www.securityfocus.com/bid/75553
http://www.openwall.com/lists/oss-security/2015/07/06/8
http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
http://www.openwall.com/lists/oss-security/2015/07/09/12
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
https://nvd.nist.gov/vuln/detail/CVE-2015-5400
http://www.securitytracker.com/id/1032873
http://www.squid-cache.org/Advisories/SQUID-2015_2.txt
http://www.openwall.com/lists/oss-security/2015/07/10/2
http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10494.patch
https://www.mend.io/vulnerability-database/CVE-2015-5400

Severity Score

Weakness Type (CWE)

Permissions, Privileges, and Access Control

CWE-264

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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