Vulnerabilities > CVE-2013-6824 - Code Injection vulnerability in Zabbix
Attack vector
UNKNOWN Attack complexity
UNKNOWN Privileges required
UNKNOWN Confidentiality impact
UNKNOWN Integrity impact
UNKNOWN Availability impact
UNKNOWN Summary
Zabbix before 1.8.19rc1, 2.0 before 2.0.10rc1, and 2.2 before 2.2.1rc1 allows remote Zabbix servers and proxies to execute arbitrary commands via a newline in a flexible user parameter.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Leverage Executable Code in Non-Executable Files An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
- Manipulating User-Controlled Variables This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An attacker can override environment variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the attacker can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.
Nessus
NASL family Fedora Local Security Checks NASL id FEDORA_2013-22741.NASL description This update solves the vulnerability described in CVE-2013-6824 : last seen 2020-03-17 modified 2013-12-14 plugin id 71421 published 2013-12-14 reporter This script is Copyright (C) 2013-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/71421 title Fedora 20 : zabbix-2.0.9-2.fc20 (2013-22741) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory 2013-22741. # include("compat.inc"); if (description) { script_id(71421); script_version("1.7"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12"); script_cve_id("CVE-2013-6824"); script_bugtraq_id(64311); script_xref(name:"FEDORA", value:"2013-22741"); script_name(english:"Fedora 20 : zabbix-2.0.9-2.fc20 (2013-22741)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "This update solves the vulnerability described in CVE-2013-6824 : 'Zabbix agent is vulnerable to remote command execution from the Zabbix server in some cases' https://support.zabbix.com/browse/ZBX-7479 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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://bugzilla.redhat.com/show_bug.cgi?id=1037942" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1037943" ); # https://lists.fedoraproject.org/pipermail/package-announce/2013-December/123644.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?9ed8612b" ); script_set_attribute( attribute:"see_also", value:"https://support.zabbix.com/browse/ZBX-7479" ); script_set_attribute( attribute:"solution", value:"Update the affected zabbix package." ); 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:U/RL:OF/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:zabbix"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:20"); script_set_attribute(attribute:"patch_publication_date", value:"2013/12/05"); script_set_attribute(attribute:"plugin_publication_date", value:"2013/12/14"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2013-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! ereg(pattern:"^20([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 20.x", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC20", reference:"zabbix-2.0.9-2.fc20")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "zabbix"); }
NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201401-26.NASL description The remote host is affected by the vulnerability described in GLSA-201401-26 (Zabbix: Shell command injection) If a flexible user parameter is configured in Zabbix agent, including a newline in the parameters will execute newline section as a separate command even if UnsafeUserParameters are disabled. Impact : A remote attacker could possibly execute arbitrary shell code with the privileges of the process. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 74283 published 2014-06-03 reporter This script is Copyright (C) 2014-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/74283 title GLSA-201401-26 : Zabbix: Shell command injection code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Gentoo Linux Security Advisory GLSA 201401-26. # # The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc. # and licensed under the Creative Commons - Attribution / Share Alike # license. See http://creativecommons.org/licenses/by-sa/3.0/ # include("compat.inc"); if (description) { script_id(74283); script_version("1.3"); script_cvs_date("Date: 2018/12/05 20:31:22"); script_cve_id("CVE-2013-6824"); script_bugtraq_id(64311); script_xref(name:"GLSA", value:"201401-26"); script_name(english:"GLSA-201401-26 : Zabbix: Shell command injection"); script_summary(english:"Checks for updated package(s) in /var/db/pkg"); script_set_attribute( attribute:"synopsis", value: "The remote Gentoo host is missing one or more security-related patches." ); script_set_attribute( attribute:"description", value: "The remote host is affected by the vulnerability described in GLSA-201401-26 (Zabbix: Shell command injection) If a flexible user parameter is configured in Zabbix agent, including a newline in the parameters will execute newline section as a separate command even if UnsafeUserParameters are disabled. Impact : A remote attacker could possibly execute arbitrary shell code with the privileges of the process. Workaround : There is no known workaround at this time." ); script_set_attribute( attribute:"see_also", value:"https://security.gentoo.org/glsa/201401-26" ); script_set_attribute( attribute:"solution", value: "All Zabbix 2.2 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose '>=net-analyzer/zabbix-2.2.0-r4' All Zabbix 2.0 users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose '>=net-analyzer/zabbix-2.0.9-r1'" ); 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:U/RL:OF/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:zabbix"); script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux"); script_set_attribute(attribute:"patch_publication_date", value:"2014/01/23"); script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/03"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2014-2018 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Gentoo Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("qpkg.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo"); if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (qpkg_check(package:"net-analyzer/zabbix", unaffected:make_list("ge 2.0.9-r1"), vulnerable:make_list("lt 2.0.9-r1"))) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get()); else security_hole(0); exit(0); } else { tested = qpkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Zabbix"); }
NASL family Fedora Local Security Checks NASL id FEDORA_2013-22764.NASL description This update solves the vulnerability described in CVE-2013-6824 : last seen 2020-03-17 modified 2013-12-13 plugin id 71382 published 2013-12-13 reporter This script is Copyright (C) 2013-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/71382 title Fedora 19 : zabbix-2.0.9-2.fc19 (2013-22764) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Fedora Security Advisory 2013-22764. # include("compat.inc"); if (description) { script_id(71382); script_version("1.5"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12"); script_cve_id("CVE-2013-6824"); script_xref(name:"FEDORA", value:"2013-22764"); script_name(english:"Fedora 19 : zabbix-2.0.9-2.fc19 (2013-22764)"); script_summary(english:"Checks rpm output for the updated package."); script_set_attribute( attribute:"synopsis", value:"The remote Fedora host is missing a security update." ); script_set_attribute( attribute:"description", value: "This update solves the vulnerability described in CVE-2013-6824 : 'Zabbix agent is vulnerable to remote command execution from the Zabbix server in some cases' https://support.zabbix.com/browse/ZBX-7479 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora 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://bugzilla.redhat.com/show_bug.cgi?id=1037942" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.redhat.com/show_bug.cgi?id=1037943" ); # https://lists.fedoraproject.org/pipermail/package-announce/2013-December/123446.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?2dcea917" ); script_set_attribute( attribute:"see_also", value:"https://support.zabbix.com/browse/ZBX-7479" ); script_set_attribute( attribute:"solution", value:"Update the affected zabbix package." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:zabbix"); script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:19"); script_set_attribute(attribute:"patch_publication_date", value:"2013/12/05"); script_set_attribute(attribute:"plugin_publication_date", value:"2013/12/13"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2013-2020 Tenable Network Security, Inc."); script_family(english:"Fedora Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora"); os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora"); os_ver = os_ver[1]; if (! ereg(pattern:"^19([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 19.x", "Fedora " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu); flag = 0; if (rpm_check(release:"FC19", reference:"zabbix-2.0.9-2.fc19")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "zabbix"); }
NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_44D0F8DC660711E3BB110025900931F8.NASL description Recurity Labs Team project reports : Zabbix agent is vulnerable to remote command execution from the Zabbix server in some cases. last seen 2020-06-01 modified 2020-06-02 plugin id 71450 published 2013-12-16 reporter This script is Copyright (C) 2013-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/71450 title FreeBSD : zabbix -- shell command injection vulnerability (44d0f8dc-6607-11e3-bb11-0025900931f8) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from the FreeBSD VuXML database : # # Copyright 2003-2018 Jacques Vidrine and contributors # # Redistribution and use in source (VuXML) and 'compiled' forms (SGML, # HTML, PDF, PostScript, RTF and so forth) with or without modification, # are permitted provided that the following conditions are met: # 1. Redistributions of source code (VuXML) must retain the above # copyright notice, this list of conditions and the following # disclaimer as the first lines of this file unmodified. # 2. Redistributions in compiled form (transformed to other DTDs, # published online in any format, converted to PDF, PostScript, # RTF and other formats) must reproduce the above copyright # notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # # THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, # OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT # OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR # BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE # OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION, # EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # include("compat.inc"); if (description) { script_id(71450); script_version("1.3"); script_cvs_date("Date: 2018/11/10 11:49:43"); script_cve_id("CVE-2013-6824"); script_name(english:"FreeBSD : zabbix -- shell command injection vulnerability (44d0f8dc-6607-11e3-bb11-0025900931f8)"); script_summary(english:"Checks for updated package in pkg_info output"); script_set_attribute( attribute:"synopsis", value:"The remote FreeBSD host is missing a security-related update." ); script_set_attribute( attribute:"description", value: "Recurity Labs Team project reports : Zabbix agent is vulnerable to remote command execution from the Zabbix server in some cases." ); script_set_attribute( attribute:"see_also", value:"https://support.zabbix.com/browse/ZBX-7479" ); # https://vuxml.freebsd.org/freebsd/44d0f8dc-6607-11e3-bb11-0025900931f8.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?ab408cc4" ); script_set_attribute(attribute:"solution", value:"Update the affected package."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:zabbix2-agent"); script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd"); script_set_attribute(attribute:"vuln_publication_date", value:"2013/12/03"); script_set_attribute(attribute:"patch_publication_date", value:"2013/12/16"); script_set_attribute(attribute:"plugin_publication_date", value:"2013/12/16"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2013-2018 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"FreeBSD Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info"); exit(0); } include("audit.inc"); include("freebsd_package.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD"); if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (pkg_test(save_report:TRUE, pkg:"zabbix2-agent<2.0.10")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get()); else security_hole(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");
References
- http://security.gentoo.org/glsa/glsa-201401-26.xml
- http://security.gentoo.org/glsa/glsa-201401-26.xml
- http://www.zabbix.com/rn1.8.19rc1.php
- http://www.zabbix.com/rn1.8.19rc1.php
- http://www.zabbix.com/rn2.0.10rc1.php
- http://www.zabbix.com/rn2.0.10rc1.php
- http://www.zabbix.com/rn2.2.1rc1.php
- http://www.zabbix.com/rn2.2.1rc1.php
- https://support.zabbix.com/browse/ZBX-7479
- https://support.zabbix.com/browse/ZBX-7479