Vulnerabilities > CVE-2018-16850 - SQL Injection vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
HIGH Integrity impact
HIGH Availability impact
HIGH Summary
postgresql before versions 11.1, 10.6 is vulnerable to a to SQL injection in pg_upgrade and pg_dump via CREATE TRIGGER ... REFERENCING. Using a purpose-crafted trigger definition, an attacker can cause arbitrary SQL statements to run, with superuser privileges.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 7 | |
| OS | 4 | |
| OS | 2 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Command Line Execution through SQL Injection An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.
- Object Relational Mapping Injection An attacker leverages a weakness present in the database access layer code generated with an Object Relational Mapping (ORM) tool or a weakness in the way that a developer used a persistence framework to inject his or her own SQL commands to be executed against the underlying database. The attack here is similar to plain SQL injection, except that the application does not use JDBC to directly talk to the database, but instead it uses a data access layer generated by an ORM tool or framework (e.g. Hibernate). While most of the time code generated by an ORM tool contains safe access methods that are immune to SQL injection, sometimes either due to some weakness in the generated code or due to the fact that the developer failed to use the generated access methods properly, SQL injection is still possible.
- SQL Injection through SOAP Parameter Tampering An attacker modifies the parameters of the SOAP message that is sent from the service consumer to the service provider to initiate a SQL injection attack. On the service provider side, the SOAP message is parsed and parameters are not properly validated before being used to access a database in a way that does not use parameter binding, thus enabling the attacker to control the structure of the executed SQL query. This pattern describes a SQL injection attack with the delivery mechanism being a SOAP message.
- Expanding Control over the Operating System from the Database An attacker is able to leverage access gained to the database to read / write data to the file system, compromise the operating system, create a tunnel for accessing the host machine, and use this access to potentially attack other machines on the same network as the database machine. Traditionally SQL injections attacks are viewed as a way to gain unauthorized read access to the data stored in the database, modify the data in the database, delete the data, etc. However, almost every data base management system (DBMS) system includes facilities that if compromised allow an attacker complete access to the file system, operating system, and full access to the host running the database. The attacker can then use this privileged access to launch subsequent attacks. These facilities include dropping into a command shell, creating user defined functions that can call system level libraries present on the host machine, stored procedures, etc.
- SQL Injection This attack exploits target software that constructs SQL statements based on user input. An attacker crafts input strings so that when the target software constructs SQL statements based on the input, the resulting SQL statement performs actions other than those the application intended. SQL Injection results from failure of the application to appropriately validate input. When specially crafted user-controlled input consisting of SQL syntax is used without proper validation as part of SQL queries, it is possible to glean information from the database in ways not envisaged during application design. Depending upon the database and the design of the application, it may also be possible to leverage injection to have the database execute system-related commands of the attackers' choice. SQL Injection enables an attacker to talk directly to the database, thus bypassing the application completely. Successful injection can cause information disclosure as well as ability to add or modify data in the database. In order to successfully inject SQL and retrieve information from a database, an attacker:
Nessus
NASL family SuSE Local Security Checks NASL id OPENSUSE-2018-1460.NASL description This update for postgresql10 fixes the following issues : Security issue fixed : - CVE-2018-16850: Fixed improper quoting of transition table names when pg_dump emits CREATE TRIGGER could have caused privilege escalation (bsc#1114837). Non-security issues fixed : - Update to release 10.6 : - https://www.postgresql.org/docs/current/static/release-10-6.html This update was imported from the SUSE:SLE-12:Update update project. last seen 2020-06-05 modified 2018-11-26 plugin id 119137 published 2018-11-26 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119137 title openSUSE Security Update : postgresql10 (openSUSE-2018-1460) 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-2018-1460. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(119137); script_version("1.4"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2018-16850"); script_name(english:"openSUSE Security Update : postgresql10 (openSUSE-2018-1460)"); script_summary(english:"Check for the openSUSE-2018-1460 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 postgresql10 fixes the following issues : Security issue fixed : - CVE-2018-16850: Fixed improper quoting of transition table names when pg_dump emits CREATE TRIGGER could have caused privilege escalation (bsc#1114837). Non-security issues fixed : - Update to release 10.6 : - https://www.postgresql.org/docs/current/static/release-10-6.html This update was imported from the SUSE:SLE-12:Update update project." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.opensuse.org/show_bug.cgi?id=1114837" ); # https://www.postgresql.org/docs/current/static/release-10-6.html script_set_attribute( attribute:"see_also", value:"https://www.postgresql.org/docs/current/release-10-6.html" ); script_set_attribute( attribute:"solution", value:"Update the affected postgresql10 packages." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/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:libecpg6"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libecpg6-32bit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libecpg6-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libecpg6-debuginfo-32bit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libpq5"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libpq5-32bit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libpq5-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:libpq5-debuginfo-32bit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-contrib"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-contrib-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-devel-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-libs-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-plperl"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-plperl-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-plpython"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-plpython-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-pltcl"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-pltcl-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-server"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-server-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:postgresql10-test"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:42.3"); script_set_attribute(attribute:"patch_publication_date", value:"2018/11/24"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/26"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); 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\.3)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "42.3", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE42.3", reference:"libecpg6-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"libecpg6-debuginfo-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"libpq5-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"libpq5-debuginfo-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-contrib-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-contrib-debuginfo-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-debuginfo-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-debugsource-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-devel-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-devel-debuginfo-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-libs-debugsource-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-plperl-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-plperl-debuginfo-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-plpython-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-plpython-debuginfo-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-pltcl-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-pltcl-debuginfo-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-server-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-server-debuginfo-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", reference:"postgresql10-test-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"libecpg6-32bit-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"libecpg6-debuginfo-32bit-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"libpq5-32bit-10.6-5.1") ) flag++; if ( rpm_check(release:"SUSE42.3", cpu:"x86_64", reference:"libpq5-debuginfo-32bit-10.6-5.1") ) 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, "libecpg6 / libecpg6-32bit / libecpg6-debuginfo / etc"); }NASL family Huawei Local Security Checks NASL id EULEROS_SA-2019-2297.NASL description According to the version of the postgresql packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - postgresql before versions 11.1, 10.6 is vulnerable to a to SQL injection in pg_upgrade and pg_dump via CREATE TRIGGER ... REFERENCING. Using a purpose-crafted trigger definition, an attacker can cause arbitrary SQL statements to run, with superuser privileges.(CVE-2018-16850) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-05-03 modified 2019-11-27 plugin id 131363 published 2019-11-27 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/131363 title EulerOS 2.0 SP8 : postgresql (EulerOS-SA-2019-2297) code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(131363); script_version("1.3"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/01"); script_cve_id( "CVE-2018-16850" ); script_name(english:"EulerOS 2.0 SP8 : postgresql (EulerOS-SA-2019-2297)"); script_summary(english:"Checks the rpm output for the updated package."); script_set_attribute(attribute:"synopsis", value: "The remote EulerOS host is missing a security update."); script_set_attribute(attribute:"description", value: "According to the version of the postgresql packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - postgresql before versions 11.1, 10.6 is vulnerable to a to SQL injection in pg_upgrade and pg_dump via CREATE TRIGGER ... REFERENCING. Using a purpose-crafted trigger definition, an attacker can cause arbitrary SQL statements to run, with superuser privileges.(CVE-2018-16850) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues."); # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-2297 script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?bbf19b3d"); script_set_attribute(attribute:"solution", value: "Update the affected postgresql 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_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"patch_publication_date", value:"2019/11/27"); script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/27"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-contrib"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-docs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-libs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-plperl"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-plpython"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-pltcl"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-server"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:postgresql-test"); script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Huawei Local Security Checks"); script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp"); script_exclude_keys("Host/EulerOS/uvp_version"); 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/EulerOS/release"); if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS"); if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0"); sp = get_kb_item("Host/EulerOS/sp"); if (isnull(sp) || sp !~ "^(8)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8"); uvp = get_kb_item("Host/EulerOS/uvp_version"); if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8", "EulerOS UVP " + uvp); if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu); if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu); flag = 0; pkgs = ["postgresql-10.5-3.h5.eulerosv2r8", "postgresql-contrib-10.5-3.h5.eulerosv2r8", "postgresql-devel-10.5-3.h5.eulerosv2r8", "postgresql-docs-10.5-3.h5.eulerosv2r8", "postgresql-libs-10.5-3.h5.eulerosv2r8", "postgresql-plperl-10.5-3.h5.eulerosv2r8", "postgresql-plpython-10.5-3.h5.eulerosv2r8", "postgresql-pltcl-10.5-3.h5.eulerosv2r8", "postgresql-server-10.5-3.h5.eulerosv2r8", "postgresql-test-10.5-3.h5.eulerosv2r8"]; foreach (pkg in pkgs) if (rpm_check(release:"EulerOS-2.0", sp:"8", reference:pkg)) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_HOLE, extra : rpm_report_get() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "postgresql"); }NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_1C27A706E3AA11E8B77A6CC21735F730.NASL description The PostgreSQL project reports : CVE-2018-16850: SQL injection in pg_upgrade and pg_dump, via CREATE TRIGGER ... REFERENCING. Using a purpose-crafted trigger definition, an attacker can run arbitrary SQL statements with superuser privileges when a superuser runs pg_upgrade on the database or during a pg_dump dump/restore cycle. This attack requires a CREATE privilege on some non-temporary schema or a TRIGGER privilege on a table. This is exploitable in the default PostgreSQL configuration, where all users have CREATE privilege on public schema. last seen 2020-06-01 modified 2020-06-02 plugin id 118844 published 2018-11-09 reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118844 title FreeBSD : PostgreSQL -- SQL injection in pg_upgrade and pg_dump (1c27a706-e3aa-11e8-b77a-6cc21735f730) 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(118844); script_version("1.3"); script_cvs_date("Date: 2018/12/19 13:21:19"); script_cve_id("CVE-2018-16850"); script_name(english:"FreeBSD : PostgreSQL -- SQL injection in pg_upgrade and pg_dump (1c27a706-e3aa-11e8-b77a-6cc21735f730)"); 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: "The PostgreSQL project reports : CVE-2018-16850: SQL injection in pg_upgrade and pg_dump, via CREATE TRIGGER ... REFERENCING. Using a purpose-crafted trigger definition, an attacker can run arbitrary SQL statements with superuser privileges when a superuser runs pg_upgrade on the database or during a pg_dump dump/restore cycle. This attack requires a CREATE privilege on some non-temporary schema or a TRIGGER privilege on a table. This is exploitable in the default PostgreSQL configuration, where all users have CREATE privilege on public schema." ); script_set_attribute( attribute:"see_also", value:"https://www.postgresql.org/about/news/1905/" ); # https://vuxml.freebsd.org/freebsd/1c27a706-e3aa-11e8-b77a-6cc21735f730.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?a27035c3" ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/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:postgresql10-server"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:postgresql93-server"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:postgresql94-server"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:postgresql95-server"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:postgresql96-server"); script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd"); script_set_attribute(attribute:"vuln_publication_date", value:"2018/11/08"); script_set_attribute(attribute:"patch_publication_date", value:"2018/11/08"); script_set_attribute(attribute:"plugin_publication_date", value:"2018/11/09"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 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:"postgresql10-server<10.6")) flag++; if (pkg_test(save_report:TRUE, pkg:"postgresql96-server<9.6.11")) flag++; if (pkg_test(save_report:TRUE, pkg:"postgresql95-server<9.5.15")) flag++; if (pkg_test(save_report:TRUE, pkg:"postgresql94-server<9.4.20")) flag++; if (pkg_test(save_report:TRUE, pkg:"postgresql93-server<9.3.25")) 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");NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-3818-1.NASL description It was discovered that PostgreSQL incorrectly handled certain trigger definitions when running pg_upgrade or pg_dump. A remote attacker could possibly use this issue to execute arbitrary SQL statements with superuser privileges. Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 118966 published 2018-11-15 reporter Ubuntu Security Notice (C) 2018-2019 Canonical, Inc. / NASL script (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118966 title Ubuntu 18.04 LTS / 18.10 : postgresql-10 vulnerability (USN-3818-1) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-3770-2.NASL description This update for postgresql10 fixes the following issues : Security issue fixed : CVE-2018-16850: Fixed improper quoting of transition table names when pg_dump emits CREATE TRIGGER could have caused privilege escalation (bsc#1114837). Non-security issues fixed: Update to release 10.6 : - https://www.postgresql.org/docs/current/static/release-10-6.html Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-04-30 modified 2018-12-13 plugin id 119644 published 2018-12-13 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119644 title SUSE SLED12 / SLES12 Security Update : postgresql10 (SUSE-SU-2018:3770-2) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-3770-1.NASL description This update for postgresql10 fixes the following issues : Security issue fixed : CVE-2018-16850: Fixed improper quoting of transition table names when pg_dump emits CREATE TRIGGER could have caused privilege escalation (bsc#1114837). Non-security issues fixed: Update to release 10.6 : - https://www.postgresql.org/docs/current/static/release-10-6.html Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 119011 published 2018-11-16 reporter This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119011 title SUSE SLED12 / SLES12 Security Update : postgresql10 (SUSE-SU-2018:3770-1) NASL family SuSE Local Security Checks NASL id OPENSUSE-2018-1493.NASL description This update for postgresql10 fixes the following issues : Security issue fixed : - CVE-2018-16850: Fixed improper quoting of transition table names when pg_dump emits CREATE TRIGGER could have caused privilege escalation (bsc#1114837). Non-security issues fixed : - Update to release 10.6 : - https://www.postgresql.org/docs/current/static/release-10-6.html This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-06-05 modified 2018-12-10 plugin id 119537 published 2018-12-10 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119537 title openSUSE Security Update : postgresql10 (openSUSE-2018-1493) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201811-24.NASL description The remote host is affected by the vulnerability described in GLSA-201811-24 (PostgreSQL: SQL injection) A vulnerability was discovered in PostgreSQL’s pg_upgrade and pg_dump. Impact : An attacker, by enticing a user to process a specially crafted trigger definition, can execute arbitrary SQL statements with superuser privileges. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 119319 published 2018-12-03 reporter This script is Copyright (C) 2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/119319 title GLSA-201811-24 : PostgreSQL: SQL injection NASL family SuSE Local Security Checks NASL id OPENSUSE-2019-967.NASL description This update for postgresql10 fixes the following issues : Security issue fixed : - CVE-2018-16850: Fixed improper quoting of transition table names when pg_dump emits CREATE TRIGGER could have caused privilege escalation (bsc#1114837). Non-security issues fixed : - Update to release 10.6 : - https://www.postgresql.org/docs/current/static/release-10-6.html This update was imported from the SUSE:SLE-15:Update update project. last seen 2020-06-01 modified 2020-06-02 plugin id 123392 published 2019-03-27 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/123392 title openSUSE Security Update : postgresql10 (openSUSE-2019-967) NASL family SuSE Local Security Checks NASL id SUSE_SU-2018-3942-1.NASL description This update for postgresql10 fixes the following issues : Security issue fixed : CVE-2018-16850: Fixed improper quoting of transition table names when pg_dump emits CREATE TRIGGER could have caused privilege escalation (bsc#1114837). Non-security issues fixed: Update to release 10.6 : - https://www.postgresql.org/docs/current/static/release-10-6.html Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-18 modified 2019-01-02 plugin id 120173 published 2019-01-02 reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/120173 title SUSE SLED15 / SLES15 Security Update : postgresql10 (SUSE-SU-2018:3942-1) NASL family Databases NASL id POSTGRESQL_20181108.NASL description The version of PostgreSQL installed on the remote host is 9.3.x prior to 9.3.25, 9.4.x prior to 9.4.20, 9.5.x prior to 9.5.15, 9.6.x prior to 9.6.11, 10.x prior to 10.6, or 11.x prior to 11.1. It is, therefore, affected by following vulnerability: - An SQL injection (SQLi) vulnerability exists in pg_upgrade and pg_dump via CREATE TRIGGER ... REFERENCING. An authenticated, remote attacker can exploit this to execute arbitrary SQL statements with superuser privileges. last seen 2020-04-30 modified 2018-11-14 plugin id 118936 published 2018-11-14 reporter This script is Copyright (C) 2018-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/118936 title PostgreSQL 9.3.x < 9.3.25 / 9.4.x < 9.4.20 / 9.5.x < 9.5.15 / 9.6.x < 9.6.11 / 10.x < 10.6 / 11.x < 11.1 SQL injection
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References
- https://www.postgresql.org/about/news/1905/
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16850
- https://usn.ubuntu.com/3818-1/
- http://www.securitytracker.com/id/1042144
- http://www.securityfocus.com/bid/105923
- https://security.gentoo.org/glsa/201811-24
- https://access.redhat.com/errata/RHSA-2018:3757