Debian DLA-1426-1 : cups 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-1426-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(111084);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");

  script_cve_id("CVE-2018-4180", "CVE-2018-4181", "CVE-2018-6553");

  script_name(english:"Debian DLA-1426-1 : cups 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:
"Several vulnerabilities were discovered in CUPS, the Common UNIX
Printing System. These issues have been identified with the following
CVE ids :

CVE-2018-4180

Dan Bastone of Gotham Digital Science discovered that a local attacker
with access to cupsctl could escalate privileges by setting an
environment variable.

CVE-2018-4181

Eric Rafaloff and John Dunlap of Gotham Digital Science discovered
that a local attacker can perform limited reads of arbitrary files as
root by manipulating cupsd.conf.

CVE-2018-6553

Dan Bastone of Gotham Digital Science discovered that an attacker can
bypass the AppArmor cupsd sandbox by invoking the dnssd backend using
an alternate name that has been hard linked to dnssd.

For Debian 8 'Jessie', these problems have been fixed in version
1.7.5-11+deb8u4.

We recommend that you upgrade your cups 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/2018/07/msg00014.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/cups"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:N/A:N");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cups");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cups-bsd");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cups-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cups-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cups-core-drivers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cups-daemon");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cups-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cups-ppdc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:cups-server-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcups2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcups2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcupscgi1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcupscgi1-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcupsimage2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcupsimage2-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcupsmime1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcupsmime1-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcupsppdc1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcupsppdc1-dev");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2018/07/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2018/07/16");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  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:"cups", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"cups-bsd", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"cups-client", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"cups-common", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"cups-core-drivers", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"cups-daemon", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"cups-dbg", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"cups-ppdc", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"cups-server-common", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"libcups2", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"libcups2-dev", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"libcupscgi1", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"libcupscgi1-dev", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"libcupsimage2", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"libcupsimage2-dev", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"libcupsmime1", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"libcupsmime1-dev", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"libcupsppdc1", reference:"1.7.5-11+deb8u4")) flag++;
if (deb_check(release:"8.0", prefix:"libcupsppdc1-dev", reference:"1.7.5-11+deb8u4")) 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");