Debian DLA-2631-1 : zabbix security update

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2631-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(148926);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/16");

  script_cve_id("CVE-2019-15132", "CVE-2020-15803");

  script_name(english:"Debian DLA-2631-1 : zabbix security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"Multiple vulnerabilities were discovered in Zabbix, a network
monitoring solution. An attacker may enumerate valid users and
redirect to external links through the zabbix web frontend.

CVE-2019-15132

Zabbix allows User Enumeration. With login requests, it is possible to
enumerate application usernames based on the variability of server
responses (e.g., the 'Login name or password is incorrect' and 'No
permissions for system access' messages, or just blocking for a number
of seconds). This affects both api_jsonrpc.php and index.php.

CVE-2020-15803

Zabbix allows stored XSS in the URL Widget. This fix was mistakenly
dropped in previous upload 1:3.0.31+dfsg-0+deb9u1.

This update also includes several other bug fixes and improvements.
For more information please refer to the upstream changelog file.

For Debian 9 stretch, these problems have been fixed in version
1:3.0.32+dfsg-0+deb9u1.

We recommend that you upgrade your zabbix packages.

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

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/2021/04/msg00018.html");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/zabbix");
  script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/zabbix");
  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:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-15132");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2020-15803");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/08/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/04/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/04/22");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-agent");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-frontend-php");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-java-gateway");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-proxy-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-proxy-pgsql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-proxy-sqlite3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-server-mysql");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:zabbix-server-pgsql");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
  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) 2021-2024 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:"9.0", prefix:"zabbix-agent", reference:"1:3.0.32+dfsg-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"zabbix-frontend-php", reference:"1:3.0.32+dfsg-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"zabbix-java-gateway", reference:"1:3.0.32+dfsg-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"zabbix-proxy-mysql", reference:"1:3.0.32+dfsg-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"zabbix-proxy-pgsql", reference:"1:3.0.32+dfsg-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"zabbix-proxy-sqlite3", reference:"1:3.0.32+dfsg-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"zabbix-server-mysql", reference:"1:3.0.32+dfsg-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"zabbix-server-pgsql", reference:"1:3.0.32+dfsg-0+deb9u1")) 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");