Vulnerabilities > CVE-2016-1866 - Improper Access Control vulnerability in multiple products
Attack vector
NETWORK Attack complexity
HIGH Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
Salt 2015.8.x before 2015.8.4 does not properly handle clear messages on the minion, which allows man-in-the-middle attackers to execute arbitrary code by inserting packets into the minion-master data stream.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 4 | |
| OS | 1 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Embedding Scripts within Scripts An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
- Signature Spoofing by Key Theft An attacker obtains an authoritative or reputable signer's private signature key by theft and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.
Nessus
NASL family SuSE Local Security Checks NASL id OPENSUSE-2016-318.NASL description This update for salt fixes the following issues : - CVE-2016-1866: Improper handling of clear messages on the minion remote code execution (boo#965403) The following bugs were fixed : - boo#958350: Salt crashes on invalid UTF-8 in package data - boo#959572: last seen 2020-06-05 modified 2016-03-10 plugin id 89814 published 2016-03-10 reporter This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/89814 title openSUSE Security Update : salt (openSUSE-2016-318) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from openSUSE Security Update openSUSE-2016-318. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(89814); script_version("2.4"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2016-1866"); script_name(english:"openSUSE Security Update : salt (openSUSE-2016-318)"); script_summary(english:"Check for the openSUSE-2016-318 patch"); script_set_attribute( attribute:"synopsis", value:"The remote openSUSE host is missing a security update." ); script_set_attribute( attribute:"description", value: "This update for salt fixes the following issues : - CVE-2016-1866: Improper handling of clear messages on the minion remote code execution (boo#965403) The following bugs were fixed : - boo#958350: Salt crashes on invalid UTF-8 in package data - boo#959572: 'salt '*' pkg.info_installed' causes exception on sles12sp1 client - boo#963322: salt-api cannot be stopped correctly" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=958350" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=959572" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=963322" ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=965403" ); script_set_attribute(attribute:"solution", value:"Update the affected salt packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:salt"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:salt-api"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:salt-bash-completion"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:salt-cloud"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:salt-fish-completion"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:salt-master"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:salt-minion"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:salt-proxy"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:salt-raet"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:salt-ssh"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:salt-syndic"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:salt-zsh-completion"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.1"); script_set_attribute(attribute:"patch_publication_date", value:"2016/03/08"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/10"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2016-2020 Tenable Network Security, Inc."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu"); 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/SuSE/release"); if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE"); if (release !~ "^(SUSE42\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.1", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE42.1", reference:"salt-2015.8.7-13.1") ) flag++; if ( rpm_check(release:"SUSE42.1", reference:"salt-api-2015.8.7-13.1") ) flag++; if ( rpm_check(release:"SUSE42.1", reference:"salt-bash-completion-2015.8.7-13.1") ) flag++; if ( rpm_check(release:"SUSE42.1", reference:"salt-cloud-2015.8.7-13.1") ) flag++; if ( rpm_check(release:"SUSE42.1", reference:"salt-fish-completion-2015.8.7-13.1") ) flag++; if ( rpm_check(release:"SUSE42.1", reference:"salt-master-2015.8.7-13.1") ) flag++; if ( rpm_check(release:"SUSE42.1", reference:"salt-minion-2015.8.7-13.1") ) flag++; if ( rpm_check(release:"SUSE42.1", reference:"salt-proxy-2015.8.7-13.1") ) flag++; if ( rpm_check(release:"SUSE42.1", reference:"salt-raet-2015.8.7-13.1") ) flag++; if ( rpm_check(release:"SUSE42.1", reference:"salt-ssh-2015.8.7-13.1") ) flag++; if ( rpm_check(release:"SUSE42.1", reference:"salt-syndic-2015.8.7-13.1") ) flag++; if ( rpm_check(release:"SUSE42.1", reference:"salt-zsh-completion-2015.8.7-13.1") ) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get()); else security_warning(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "salt / salt-api / salt-bash-completion / salt-cloud / etc"); }NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_0652005ECA9611E596D614DAE9D210B8.NASL description SaltStack reports : Improper handling of clear messages on the minion, which could result in executing commands not sent by the master. last seen 2020-06-01 modified 2020-06-02 plugin id 88570 published 2016-02-04 reporter This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/88570 title FreeBSD : salt -- code execution (0652005e-ca96-11e5-96d6-14dae9d210b8) 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(88570); script_version("2.4"); script_cvs_date("Date: 2018/11/10 11:49:45"); script_cve_id("CVE-2016-1866"); script_name(english:"FreeBSD : salt -- code execution (0652005e-ca96-11e5-96d6-14dae9d210b8)"); script_summary(english:"Checks for updated packages in pkg_info output"); script_set_attribute( attribute:"synopsis", value: "The remote FreeBSD host is missing one or more security-related updates." ); script_set_attribute( attribute:"description", value: "SaltStack reports : Improper handling of clear messages on the minion, which could result in executing commands not sent by the master." ); script_set_attribute( attribute:"see_also", value:"https://docs.saltstack.com/en/latest/topics/releases/2015.8.4.html" ); script_set_attribute( attribute:"see_also", value:"https://github.com/saltstack/salt/pull/30613/files" ); # https://vuxml.freebsd.org/freebsd/0652005e-ca96-11e5-96d6-14dae9d210b8.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?10a56124" ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:py27-salt"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:py32-salt"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:py33-salt"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:py34-salt"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:py35-salt"); script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd"); script_set_attribute(attribute:"vuln_publication_date", value:"2016/01/25"); script_set_attribute(attribute:"patch_publication_date", value:"2016/02/03"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/02/04"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2016-2018 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:"py27-salt>=2015.8.0<2015.8.4")) flag++; if (pkg_test(save_report:TRUE, pkg:"py32-salt>=2015.8.0<2015.8.4")) flag++; if (pkg_test(save_report:TRUE, pkg:"py33-salt>=2015.8.0<2015.8.4")) flag++; if (pkg_test(save_report:TRUE, pkg:"py34-salt>=2015.8.0<2015.8.4")) flag++; if (pkg_test(save_report:TRUE, pkg:"py35-salt>=2015.8.0<2015.8.4")) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:pkg_report_get()); else security_warning(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");