Debian DLA-1525-1 : mosquitto 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-1525-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(117835);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2017-7653", "CVE-2017-7654", "CVE-2017-9868");

  script_name(english:"Debian DLA-1525-1 : mosquitto 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:
"CVE-2017-7653

As invalid UTF-8 strings are not correctly checked, an attacker could
cause a denial of service to other clients by disconnecting them from
the broker with special crafted topics.

CVE-2017-7654

Due to a memory leak unauthenticated clients can send special crafted
CONNECT packets which could cause a denial of service in the broker.

CVE-2017-9868

Due to wrong file permissions local users could obtain topic
information from the mosquitto database.

For Debian 8 'Jessie', these problems have been fixed in version
1.3.4-2+deb8u3.

We recommend that you upgrade your mosquitto packages.

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/2018/09/msg00036.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/mosquitto"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libmosquitto-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libmosquitto1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libmosquittopp-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libmosquittopp1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:mosquitto");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:mosquitto-clients");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:mosquitto-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python-mosquitto");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:python3-mosquitto");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/09/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/10/01");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2018-2021 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:"libmosquitto-dev", reference:"1.3.4-2+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libmosquitto1", reference:"1.3.4-2+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libmosquittopp-dev", reference:"1.3.4-2+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"libmosquittopp1", reference:"1.3.4-2+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"mosquitto", reference:"1.3.4-2+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"mosquitto-clients", reference:"1.3.4-2+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"mosquitto-dbg", reference:"1.3.4-2+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"python-mosquitto", reference:"1.3.4-2+deb8u3")) flag++;
if (deb_check(release:"8.0", prefix:"python3-mosquitto", reference:"1.3.4-2+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");