Permissions, Privileges, and Access Controls in Squid - CVE-2015-5400
Published: September 28, 2015 / Updated: July 28, 2020
Vulnerability identifier: #VU32370
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2015-5400
CWE-ID: CWE-264
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Squid-cache.org
Affected software:
Squid
Squid
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
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.
How to mitigate CVE-2015-5400
Install update from vendor's website.
Sources
- 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