Several security issues have been discovered in the Squid caching proxy.
CVE-2016-4051 :
CESG and Yuriy M. Kaminskiy discovered that Squid cachemgr.cgi was vulnerable to a buffer overflow when processing remotely supplied inputs relayed through Squid.
CVE-2016-4052 :
CESG discovered that a buffer overflow made Squid vulnerable to a Denial of Service (DoS) attack when processing ESI responses.
CVE-2016-4053 :
CESG found that Squid was vulnerable to public information disclosure of the server stack layout when processing ESI responses.
CVE-2016-4054 :
CESG discovered that Squid was vulnerable to remote code execution when processing ESI responses.
CVE-2016-4554 :
Jianjun Chen found that Squid was vulnerable to a header smuggling attack that could lead to cache poisoning and to bypass of same-origin security policy in Squid and some client browsers.
CVE-2016-4555, CVE-2016-4556 :
‘bfek-18’ and ‘@vftable’ found that Squid was vulnerable to a Denial of Service (DoS) attack when processing ESI responses, due to incorrect pointer handling and reference counting.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-3625. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(92525);
script_version("2.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2016-4051", "CVE-2016-4052", "CVE-2016-4053", "CVE-2016-4054", "CVE-2016-4553", "CVE-2016-4554", "CVE-2016-4555", "CVE-2016-4556");
script_xref(name:"DSA", value:"3625");
script_name(english:"Debian DSA-3625-1 : squid3 - security update");
script_summary(english:"Checks dpkg output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Debian host is missing a security-related update."
);
script_set_attribute(
attribute:"description",
value:
"Several security issues have been discovered in the Squid caching
proxy.
- CVE-2016-4051 :
CESG and Yuriy M. Kaminskiy discovered that Squid
cachemgr.cgi was vulnerable to a buffer overflow when
processing remotely supplied inputs relayed through
Squid.
- CVE-2016-4052 :
CESG discovered that a buffer overflow made Squid
vulnerable to a Denial of Service (DoS) attack when
processing ESI responses.
- CVE-2016-4053 :
CESG found that Squid was vulnerable to public
information disclosure of the server stack layout when
processing ESI responses.
- CVE-2016-4054 :
CESG discovered that Squid was vulnerable to remote code
execution when processing ESI responses.
- CVE-2016-4554 :
Jianjun Chen found that Squid was vulnerable to a header
smuggling attack that could lead to cache poisoning and
to bypass of same-origin security policy in Squid and
some client browsers.
- CVE-2016-4555, CVE-2016-4556 :
'bfek-18' and '@vftable' found that Squid was vulnerable
to a Denial of Service (DoS) attack when processing ESI
responses, due to incorrect pointer handling and
reference counting."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=823968"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-4051"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-4052"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-4053"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-4054"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-4554"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-4555"
);
script_set_attribute(
attribute:"see_also",
value:"https://security-tracker.debian.org/tracker/CVE-2016-4556"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/jessie/squid3"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2016/dsa-3625"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the squid3 packages.
For the stable distribution (jessie), these problems have been fixed
in version 3.4.8-6+deb8u3."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:squid3");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
script_set_attribute(attribute:"patch_publication_date", value:"2016/07/22");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/07/25");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2016-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Debian Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include("audit.inc");
include("debian_package.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (deb_check(release:"8.0", prefix:"squid-cgi", reference:"3.4.8-6+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"squid-purge", reference:"3.4.8-6+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"squid3", reference:"3.4.8-6+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"squid3-common", reference:"3.4.8-6+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"squid3-dbg", reference:"3.4.8-6+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"squidclient", reference:"3.4.8-6+deb8u3")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version |
---|---|---|
debian | debian_linux | squid3 |
debian | debian_linux | 8.0 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4051
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4052
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4053
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4054
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4553
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4554
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4555
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-4556
bugs.debian.org/cgi-bin/bugreport.cgi?bug=823968
packages.debian.org/source/jessie/squid3
security-tracker.debian.org/tracker/CVE-2016-4051
security-tracker.debian.org/tracker/CVE-2016-4052
security-tracker.debian.org/tracker/CVE-2016-4053
security-tracker.debian.org/tracker/CVE-2016-4054
security-tracker.debian.org/tracker/CVE-2016-4554
security-tracker.debian.org/tracker/CVE-2016-4555
security-tracker.debian.org/tracker/CVE-2016-4556
www.debian.org/security/2016/dsa-3625