Debian DLA-2680-1 : nginx security update

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2680-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include("compat.inc");

if (description)
{
  script_id(150336);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/12");

  script_cve_id("CVE-2017-20005");

  script_name(english:"Debian DLA-2680-1 : nginx security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis",
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description",
    value:
"Jamie Landeg-Jones and Manfred Paul discovered a buffer overflow
vulnerability in NGINX, a small, powerful, scalable web/proxy server.

NGINX has a buffer overflow for years that exceed four digits, as
demonstrated by a file with a modification date in 1969 that causes an
integer overflow (or a false modification date far in the future),
when encountered by the autoindex module.

For Debian 9 stretch, this problem has been fixed in version
1.10.3-1+deb9u7.

We recommend that you upgrade your nginx packages.

For the detailed security status of nginx please refer to its security
tracker page at: https://security-tracker.debian.org/tracker/nginx

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA security advisory. Tenable has attempted
to automatically clean and format it as much as possible without
introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://lists.debian.org/debian-lts-announce/2021/06/msg00009.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/nginx"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/source-package/nginx"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2017-20005");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-auth-pam");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-cache-purge");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-dav-ext");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-echo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-fancyindex");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-geoip");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-headers-more-filter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-image-filter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-lua");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-ndk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-perl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-subs-filter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-uploadprogress");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-upstream-fair");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-http-xslt-filter");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-mail");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-nchan");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libnginx-mod-stream");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:nginx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:nginx-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:nginx-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:nginx-extras");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:nginx-full");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:nginx-light");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/06/06");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/06/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/06/08");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2021-2024 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:"9.0", prefix:"libnginx-mod-http-auth-pam", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-http-cache-purge", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-http-dav-ext", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-http-echo", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-http-fancyindex", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-http-geoip", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-http-headers-more-filter", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-http-image-filter", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-http-lua", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-http-ndk", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-http-perl", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-http-subs-filter", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-http-uploadprogress", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-http-upstream-fair", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-http-xslt-filter", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-mail", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-nchan", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"libnginx-mod-stream", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"nginx", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"nginx-common", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"nginx-doc", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"nginx-extras", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"nginx-full", reference:"1.10.3-1+deb9u7")) flag++;
if (deb_check(release:"9.0", prefix:"nginx-light", reference:"1.10.3-1+deb9u7")) 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");