Debian DLA-1737-1 : pdns 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-1737-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(123524);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/07");

  script_cve_id("CVE-2019-3871");

  script_name(english:"Debian DLA-1737-1 : pdns security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"A vulnerability was found in PowerDNS Authoritative Server before
4.0.7 and before 4.1.7. An insufficient validation of data coming from
the user when building a HTTP request from a DNS query in the HTTP
Connector of the Remote backend, allowing a remote user to cause a
denial of service by making the server connect to an invalid endpoint,
or possibly information disclosure by making the server connect to an
internal endpoint and somehow extracting meaningful information about
the response.

Only installations using the pdns-backend-remote package are affected.

For Debian 8 'Jessie', this problem has been fixed in version
3.4.1-4+deb8u9.

We recommend that you upgrade your pdns 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/2019/03/msg00039.html");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/jessie/pdns");
  script_set_attribute(attribute:"solution", value:
"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/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:L/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-2019-3871");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/03/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/03/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/04/01");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-geo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-ldap");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-lmdb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-lua");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-mydns");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-pipe");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-remote");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-backend-sqlite3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:pdns-server-dbg");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
  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) 2019-2024 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:"8.0", prefix:"pdns-backend-geo", reference:"3.4.1-4+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"pdns-backend-ldap", reference:"3.4.1-4+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"pdns-backend-lmdb", reference:"3.4.1-4+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"pdns-backend-lua", reference:"3.4.1-4+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"pdns-backend-mydns", reference:"3.4.1-4+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"pdns-backend-mysql", reference:"3.4.1-4+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"pdns-backend-pgsql", reference:"3.4.1-4+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"pdns-backend-pipe", reference:"3.4.1-4+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"pdns-backend-remote", reference:"3.4.1-4+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"pdns-backend-sqlite3", reference:"3.4.1-4+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"pdns-server", reference:"3.4.1-4+deb8u9")) flag++;
if (deb_check(release:"8.0", prefix:"pdns-server-dbg", reference:"3.4.1-4+deb8u9")) 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");