Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2016-4553

Insufficient Verification of Data Authenticity

Published: May 10, 2016 | Modified: Apr 12, 2025
CVSS 3.x
8.6
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N
RedHat/V2
4.3 MODERATE
AV:N/AC:M/Au:N/C:N/I:P/A:N
RedHat/V3
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2016-4553
CWEhttps://cwe.mitre.org/data/definitions/345.html

client_side.cc in Squid before 3.5.18 and 4.x before 4.0.10 does not properly ignore the Host header when absolute-URI is provided, which allows remote attackers to conduct cache-poisoning attacks via an HTTP request.

Weakness

The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data.

Affected Software

NameVendorStart VersionEnd Version
Ubuntu_linuxCanonical12.04 (including)12.04 (including)
Ubuntu_linuxCanonical14.04 (including)14.04 (including)
Ubuntu_linuxCanonical15.10 (including)15.10 (including)
Ubuntu_linuxCanonical16.04 (including)16.04 (including)
Red Hat Enterprise Linux 6RedHatsquid34-7:3.4.14-9.el6_8.3*
Red Hat Enterprise Linux 7RedHatsquid-7:3.3.8-26.el7_2.3*
Squid3Ubuntudevel*
Squid3Ubuntuesm-infra/xenial*
Squid3Ubuntutrusty*
Squid3Ubuntuupstream*
Squid3Ubuntuwily*
Squid3Ubuntuxenial*

References

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