Login Request a demo
High severity · published May 10, 2016
CVE-2016-4553
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…
8.6
CVSS
80%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)80.0% · higher than 100% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Oracle
7 · source: NVD
SQ
Squid · Squid-cache
through 3.5.17; 4.0.1; 4.0.2; 4.0.3; 4.0.4; 4.0.5; +4 more · source: NVD
UL
Ubuntu Linux · Canonical
12.04; 14.04; 15.10; 16.04 · source: NVD
Affected product
UL
Ubuntu Linux
Canonical
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-4553
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-4553
Vendor Advisory
http://bugs.squid-cache.org/show_bug.cgi?id=4501
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00010.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00040.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-updates/2016-08/msg00069.html
www.debian.org
http://www.debian.org/security/2016/dsa-3625
Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
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