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
EPSS
Percentile
98.6%
Several vulnerabilities were discovered in the resolver in nginx, a small, powerful, scalable web/proxy server, leading to denial of service or, potentially, to arbitrary code execution. These only affect nginx if the ‘resolver’ directive is used in a configuration file.
#%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-3473. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(88702);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2016-0742", "CVE-2016-0746", "CVE-2016-0747");
script_xref(name:"DSA", value:"3473");
script_name(english:"Debian DSA-3473-1 : nginx - 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 vulnerabilities were discovered in the resolver in nginx, a
small, powerful, scalable web/proxy server, leading to denial of
service or, potentially, to arbitrary code execution. These only
affect nginx if the 'resolver' directive is used in a configuration
file."
);
script_set_attribute(
attribute:"see_also",
value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=812806"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/wheezy/nginx"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/jessie/nginx"
);
script_set_attribute(
attribute:"see_also",
value:"https://www.debian.org/security/2016/dsa-3473"
);
script_set_attribute(
attribute:"solution",
value:
"Upgrade the nginx packages.
For the oldstable distribution (wheezy), these problems have been
fixed in version 1.2.1-2.2+wheezy4.
For the stable distribution (jessie), these problems have been fixed
in version 1.6.2-5+deb8u1."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:nginx");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
script_set_attribute(attribute:"patch_publication_date", value:"2016/02/11");
script_set_attribute(attribute:"plugin_publication_date", value:"2016/02/12");
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:"7.0", prefix:"nginx", reference:"1.2.1-2.2+wheezy4")) flag++;
if (deb_check(release:"7.0", prefix:"nginx-common", reference:"1.2.1-2.2+wheezy4")) flag++;
if (deb_check(release:"7.0", prefix:"nginx-doc", reference:"1.2.1-2.2+wheezy4")) flag++;
if (deb_check(release:"7.0", prefix:"nginx-extras", reference:"1.2.1-2.2+wheezy4")) flag++;
if (deb_check(release:"7.0", prefix:"nginx-extras-dbg", reference:"1.2.1-2.2+wheezy4")) flag++;
if (deb_check(release:"7.0", prefix:"nginx-full", reference:"1.2.1-2.2+wheezy4")) flag++;
if (deb_check(release:"7.0", prefix:"nginx-full-dbg", reference:"1.2.1-2.2+wheezy4")) flag++;
if (deb_check(release:"7.0", prefix:"nginx-light", reference:"1.2.1-2.2+wheezy4")) flag++;
if (deb_check(release:"7.0", prefix:"nginx-light-dbg", reference:"1.2.1-2.2+wheezy4")) flag++;
if (deb_check(release:"7.0", prefix:"nginx-naxsi", reference:"1.2.1-2.2+wheezy4")) flag++;
if (deb_check(release:"7.0", prefix:"nginx-naxsi-dbg", reference:"1.2.1-2.2+wheezy4")) flag++;
if (deb_check(release:"7.0", prefix:"nginx-naxsi-ui", reference:"1.2.1-2.2+wheezy4")) flag++;
if (deb_check(release:"8.0", prefix:"nginx", reference:"1.6.2-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"nginx-common", reference:"1.6.2-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"nginx-doc", reference:"1.6.2-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"nginx-extras", reference:"1.6.2-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"nginx-extras-dbg", reference:"1.6.2-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"nginx-full", reference:"1.6.2-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"nginx-full-dbg", reference:"1.6.2-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"nginx-light", reference:"1.6.2-5+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"nginx-light-dbg", reference:"1.6.2-5+deb8u1")) 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");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | nginx | p-cpe:/a:debian:debian_linux:nginx |
debian | debian_linux | 7.0 | cpe:/o:debian:debian_linux:7.0 |
debian | debian_linux | 8.0 | cpe:/o:debian:debian_linux:8.0 |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0742
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0746
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-0747
bugs.debian.org/cgi-bin/bugreport.cgi?bug=812806
packages.debian.org/source/jessie/nginx
packages.debian.org/source/wheezy/nginx
www.debian.org/security/2016/dsa-3473
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
EPSS
Percentile
98.6%