CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
99.0%
Multiple security issues were discovered in the Squid proxy caching server, which could result in the bypass of security filters, information disclosure, the execution of arbitrary code or denial of service.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DSA-4682. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('compat.inc');
if (description)
{
script_id(136430);
script_version("1.4");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/13");
script_cve_id(
"CVE-2019-12519",
"CVE-2019-12520",
"CVE-2019-12521",
"CVE-2019-12523",
"CVE-2019-12524",
"CVE-2019-12526",
"CVE-2019-12528",
"CVE-2019-18676",
"CVE-2019-18677",
"CVE-2019-18678",
"CVE-2019-18679",
"CVE-2020-11945",
"CVE-2020-8449",
"CVE-2020-8450"
);
script_xref(name:"DSA", value:"4682");
script_name(english:"Debian DSA-4682-1 : squid - security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
script_set_attribute(attribute:"description", value:
"Multiple security issues were discovered in the Squid proxy caching
server, which could result in the bypass of security filters,
information disclosure, the execution of arbitrary code or denial of
service.");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/squid");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/squid");
script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2020/dsa-4682");
script_set_attribute(attribute:"solution", value:
"Upgrade the squid packages.
For the stable distribution (buster), these problems have been fixed
in version 4.6-1+deb10u2.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:N/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:"cvss_score_source", value:"CVE-2020-8450");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2020-11945");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/11/26");
script_set_attribute(attribute:"patch_publication_date", value:"2020/05/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/11");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:squid");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
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:"10.0", prefix:"squid", reference:"4.6-1+deb10u2")) flag++;
if (deb_check(release:"10.0", prefix:"squid-cgi", reference:"4.6-1+deb10u2")) flag++;
if (deb_check(release:"10.0", prefix:"squid-common", reference:"4.6-1+deb10u2")) flag++;
if (deb_check(release:"10.0", prefix:"squid-purge", reference:"4.6-1+deb10u2")) flag++;
if (deb_check(release:"10.0", prefix:"squid3", reference:"4.6-1+deb10u2")) flag++;
if (deb_check(release:"10.0", prefix:"squidclient", reference:"4.6-1+deb10u2")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12519
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12520
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12521
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12523
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12524
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12526
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12528
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18676
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18677
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18678
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-18679
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11945
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8449
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8450
packages.debian.org/source/buster/squid
security-tracker.debian.org/tracker/source-package/squid
www.debian.org/security/2020/dsa-4682
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
Low
EPSS
Percentile
99.0%