PT-2015-2200 · Squid+2 · Squid+3

Alex Rousskov · Published 2015-04-15 · Updated 2024-06-15 · CVE-2015-5400

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions Squid versions prior to 3.5.6

Description The issue is related to the handling of CONNECT method peer responses when configured with cache peer, allowing remote attackers to bypass intended restrictions and gain access to a backend proxy via a CONNECT request. This is due to insufficient access control to certain functions, which can be exploited by a remote attacker to bypass existing restrictions and gain access to the server by manipulating a CONNECT request.

Recommendations For Squid versions prior to 3.5.6, update to version 3.5.6 or later to resolve the issue. As a temporary workaround, consider restricting access to the cache peer configuration to minimize the risk of exploitation.

Exploit

Fix

Weakness Enumeration

CWE-264

Related Identifiers

ALT-PU-2015-1383

ALT-PU-2015-1900

BDU:2015-11546

CVE-2015-5400

DLA-286-1

DSA-3327-1

MGASA-2015-0347

OPENSUSE-SU-2024:10307-1

SUSE-SU-2016:2008-1

SUSE-SU-2016:2089-1

Affected Products

Alt Linux

Squid

Squid Cache

Suse

References · 98

• 🔥 https://github.com/amit-raut/CVE-2016-2569 · Exploit
• 🔥 http://squid-cache.org/Versions/v3/3.5/changesets/squid-3.5-13856.patch · Exploit
• 🔥 http://squid-cache.org/Versions/v3/3.1/changesets/squid-3.1-10494.patch · Exploit
• 🔥 http://openwall.com/lists/oss-security/2015/07/17/14 · Exploit
• 🔥 http://squid-cache.org/Versions/v3/3.4/changesets/squid-3.4-13225.patch · Exploit
• http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2015-5400 · Security Note
• http://debian.org/security/2015/dsa-3327 · Vendor Advisory
• http://squid-cache.org/Advisories/SQUID-2015_2.txt · Vendor Advisory
• https://bdu.fstec.ru/vul/2016-00732 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2016:2008-1 · Vendor Advisory
• https://errata.altlinux.org/ALT-PU-2015-1900 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5400 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2015-5400 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html · Vendor Advisory