CVE-2015-5400
First published: Mon Sep 28 2015(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fedora | =22 | |
| Debian | =7.0 | |
| Debian | =8.0 | |
| Squid Web Proxy Cache | <=3.5.2 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183598.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
- http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
- http://www.debian.org/security/2015/dsa-3327
- http://www.openwall.com/lists/oss-security/2015/07/06/8
- http://www.openwall.com/lists/oss-security/2015/07/09/12
- http://www.openwall.com/lists/oss-security/2015/07/10/2
- http://www.openwall.com/lists/oss-security/2015/07/17/14
- http://www.securityfocus.com/bid/75553
- http://www.securitytracker.com/id/1032873
- http://www.squid-cache.org/Advisories/SQUID-2015_2.txt
- http://www.squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10494.patch
- http://www.squid-cache.org/Versions/v3/3.4/changesets/squid-3.4-13225.patch
- http://www.squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-13856.patch
Frequently Asked Questions
What is the severity of CVE-2015-5400?
CVE-2015-5400 has a moderate severity level due to its ability to allow remote attackers to bypass restrictions.
How do I fix CVE-2015-5400?
To fix CVE-2015-5400, upgrade Squid to version 3.5.6 or later.
What systems are affected by CVE-2015-5400?
CVE-2015-5400 affects Squid versions up to 3.5.2 and specific versions of Fedora and Debian Linux.
What does CVE-2015-5400 allow attackers to do?
CVE-2015-5400 allows attackers to bypass intended restrictions and gain unauthorized access to a backend proxy.
Is CVE-2015-5400 a local or remote vulnerability?
CVE-2015-5400 is a remote vulnerability that can be exploited via a crafted CONNECT request.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/author
- agent/weakness
- agent/references
- agent/last-modified-date
- agent/first-publish-date
- agent/description
- agent/event
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/fedoraproject
- canonical/fedora
- version/fedora/22
- vendor/debian
- canonical/debian
- version/debian/7.0
- version/debian/8.0
- vendor/squid-cache
- canonical/squid web proxy cache
- version/squid web proxy cache/3.5.2