Vulnerabilities > CVE-2016-0766 - Permissions, Privileges, and Access Controls vulnerability in multiple products

047910
CVSS 8.8 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
LOW
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
postgresql
canonical
debian
CWE-264
nessus
NVD
Published: 2016-02-17
Updated: 2024-11-21

Summary

PostgreSQL before 9.1.20, 9.2.x before 9.2.15, 9.3.x before 9.3.11, 9.4.x before 9.4.6, and 9.5.x before 9.5.1 does not properly restrict access to unspecified custom configuration settings (GUCS) for PL/Java, which allows attackers to gain privileges via unspecified vectors.

Vulnerable Configurations

Part Description Count
Application
Postgresql
57
OS
Canonical
3
OS
Debian
2

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • 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.
  • Blue Boxing
    This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
  • Target Programs with Elevated Privileges
    This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.

Nessus

  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2016-0539-1.NASL
    descriptionThis update for postgresql93 fixes the following issues : - Security and bugfix release 9.3.11 : - Fix infinite loops and buffer-overrun problems in regular expressions (CVE-2016-0773, bsc#966436). - Fix regular-expression compiler to handle loops of constraint arcs (CVE-2007-4772). - Prevent certain PL/Java parameters from being set by non-superusers (CVE-2016-0766, bsc#966435). - Fix many issues in pg_dump with specific object types - Prevent over-eager pushdown of HAVING clauses for GROUPING SETS - Fix deparsing error with ON CONFLICT ... WHERE clauses - Fix tableoid errors for postgres_fdw - Prevent floating-point exceptions in pgbench - Make \det search Foreign Table names consistently - Fix quoting of domain constraint names in pg_dump - Prevent putting expanded objects into Const nodes - Allow compile of PL/Java on Windows - Fix
    last seen2020-06-01
    modified2020-06-02
    plugin id88891
    published2016-02-23
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88891
    titleSUSE SLED12 / SLES12 Security Update : postgresql93 (SUSE-SU-2016:0539-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2016:0539-1.
# The text itself is copyright (C) SUSE.
#

include("compat.inc");

if (description)
{
  script_id(88891);
  script_version("2.19");
  script_cvs_date("Date: 2019/09/11 11:22:13");

  script_cve_id("CVE-2007-4772", "CVE-2016-0766", "CVE-2016-0773");
  script_bugtraq_id(27163);

  script_name(english:"SUSE SLED12 / SLES12 Security Update : postgresql93 (SUSE-SU-2016:0539-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This update for postgresql93 fixes the following issues :

  - Security and bugfix release 9.3.11 :

  - Fix infinite loops and buffer-overrun problems in
    regular expressions (CVE-2016-0773, bsc#966436).

  - Fix regular-expression compiler to handle loops of
    constraint arcs (CVE-2007-4772).

  - Prevent certain PL/Java parameters from being set by
    non-superusers (CVE-2016-0766, bsc#966435).

  - Fix many issues in pg_dump with specific object types

  - Prevent over-eager pushdown of HAVING clauses for
    GROUPING SETS

  - Fix deparsing error with ON CONFLICT ... WHERE clauses

  - Fix tableoid errors for postgres_fdw

  - Prevent floating-point exceptions in pgbench

  - Make \det search Foreign Table names consistently

  - Fix quoting of domain constraint names in pg_dump

  - Prevent putting expanded objects into Const nodes

  - Allow compile of PL/Java on Windows

  - Fix 'unresolved symbol' errors in PL/Python execution

  - Allow Python2 and Python3 to be used in the same
    database

  - Add support for Python 3.5 in PL/Python

  - Fix issue with subdirectory creation during initdb

  - Make pg_ctl report status correctly on Windows

  - Suppress confusing error when using pg_receivexlog with
    older servers

  - Multiple documentation corrections and additions

  - Fix erroneous hash calculations in
    gin_extract_jsonb_path()

  - For the full release notse, see:
    http://www.postgresql.org/docs/9.3/static/release-9-3-11
    .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."
  );
  # http://www.postgresql.org/docs/9.3/static/release-9-3-11.html
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.postgresql.org/docs/9.3/release-9-3-11.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=966435"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=966436"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2007-4772/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-0766/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2016-0773/"
  );
  # https://www.suse.com/support/update/announcement/2016/suse-su-20160539-1/
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?ffa9a769"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Software Development Kit 12 :

zypper in -t patch SUSE-SLE-SDK-12-2016-292=1

SUSE Linux Enterprise Server 12 :

zypper in -t patch SUSE-SLE-SERVER-12-2016-292=1

SUSE Linux Enterprise Desktop 12 :

zypper in -t patch SUSE-SLE-DESKTOP-12-2016-292=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  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:L/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:"exploit_available", value:"false");
  script_cwe_id(399);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql93");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql93-contrib");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql93-contrib-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql93-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql93-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql93-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postgresql93-server-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/01/09");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/02/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/02/23");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2016-2019 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/cpu", "Host/SuSE/release", "Host/SuSE/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/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP0", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP0", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"0", reference:"postgresql93-9.3.11-14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"postgresql93-contrib-9.3.11-14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"postgresql93-contrib-debuginfo-9.3.11-14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"postgresql93-debuginfo-9.3.11-14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"postgresql93-debugsource-9.3.11-14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"postgresql93-server-9.3.11-14.2")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"postgresql93-server-debuginfo-9.3.11-14.2")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"postgresql93-9.3.11-14.2")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"postgresql93-debuginfo-9.3.11-14.2")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"postgresql93-debugsource-9.3.11-14.2")) 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, "postgresql93");
}
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-3476.NASL
    descriptionSeveral vulnerabilities have been found in PostgreSQL-9.4, a SQL database system. - CVE-2016-0766 A privilege escalation vulnerability for users of PL/Java was discovered. Certain custom configuration settings (GUCs) for PL/Java will now be modifiable only by the database superuser to mitigate this issue. - CVE-2016-0773 Tom Lane and Greg Stark discovered a flaw in the way PostgreSQL processes specially crafted regular expressions. Very large character ranges in bracket expressions could cause infinite loops or memory overwrites. A remote attacker can exploit this flaw to cause a denial of service or, potentially, to execute arbitrary code.
    last seen2020-06-01
    modified2020-06-02
    plugin id88727
    published2016-02-15
    reporterThis script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88727
    titleDebian DSA-3476-1 : postgresql-9.4 - security update
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3476. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(88727);
  script_version("2.8");
  script_cvs_date("Date: 2018/11/10 11:49:37");

  script_cve_id("CVE-2016-0766", "CVE-2016-0773");
  script_xref(name:"DSA", value:"3476");

  script_name(english:"Debian DSA-3476-1 : postgresql-9.4 - security update");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several vulnerabilities have been found in PostgreSQL-9.4, a SQL
database system.

  - CVE-2016-0766
    A privilege escalation vulnerability for users of
    PL/Java was discovered. Certain custom configuration
    settings (GUCs) for PL/Java will now be modifiable only
    by the database superuser to mitigate this issue.

  - CVE-2016-0773
    Tom Lane and Greg Stark discovered a flaw in the way
    PostgreSQL processes specially crafted regular
    expressions. Very large character ranges in bracket
    expressions could cause infinite loops or memory
    overwrites. A remote attacker can exploit this flaw to
    cause a denial of service or, potentially, to execute
    arbitrary code."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2016-0766"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2016-0773"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/postgresql-9.4"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2016/dsa-3476"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the postgresql-9.4 packages.

For the stable distribution (jessie), these problems have been fixed
in version 9.4.6-0+deb8u1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A: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_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-9.4");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/02/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/02/15");
  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:"Debian Local Security Checks");

  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:"libecpg-compat3", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libecpg-dev", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libecpg6", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libpgtypes3", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libpq-dev", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"libpq5", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"postgresql-9.4", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"postgresql-9.4-dbg", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"postgresql-client-9.4", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"postgresql-contrib-9.4", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"postgresql-doc-9.4", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"postgresql-plperl-9.4", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"postgresql-plpython-9.4", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"postgresql-plpython3-9.4", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"postgresql-pltcl-9.4", reference:"9.4.6-0+deb8u1")) flag++;
if (deb_check(release:"8.0", prefix:"postgresql-server-dev-9.4", reference:"9.4.6-0+deb8u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyUbuntu Local Security Checks
    NASL idUBUNTU_USN-2894-1.NASL
    descriptionIt was discovered that PostgreSQL incorrectly handled certain regular expressions. A remote attacker could possibly use this issue to cause PostgreSQL to crash, resulting in a denial of service. (CVE-2016-0773) It was discovered that PostgreSQL incorrectly handled certain configuration settings (GUCS) for users of PL/Java. A remote attacker could possibly use this issue to escalate privileges. (CVE-2016-0766). 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 seen2020-06-01
    modified2020-06-02
    plugin id88712
    published2016-02-12
    reporterUbuntu Security Notice (C) 2016-2019 Canonical, Inc. / NASL script (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88712
    titleUbuntu 12.04 LTS / 14.04 LTS / 15.10 : postgresql-9.1, postgresql-9.3, postgresql-9.4 vulnerabilities (USN-2894-1)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-2894-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(88712);
  script_version("1.13");
  script_cvs_date("Date: 2019/09/18 12:31:45");

  script_cve_id("CVE-2016-0766", "CVE-2016-0773");
  script_xref(name:"USN", value:"2894-1");

  script_name(english:"Ubuntu 12.04 LTS / 14.04 LTS / 15.10 : postgresql-9.1, postgresql-9.3, postgresql-9.4 vulnerabilities (USN-2894-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that PostgreSQL incorrectly handled certain regular
expressions. A remote attacker could possibly use this issue to cause
PostgreSQL to crash, resulting in a denial of service. (CVE-2016-0773)

It was discovered that PostgreSQL incorrectly handled certain
configuration settings (GUCS) for users of PL/Java. A remote attacker
could possibly use this issue to escalate privileges. (CVE-2016-0766).

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."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://usn.ubuntu.com/2894-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Update the affected postgresql-9.1, postgresql-9.3 and / or
postgresql-9.4 packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C");
  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:L/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:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-9.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-9.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:postgresql-9.4");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:12.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:14.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:15.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/02/17");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/02/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/02/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2016-2019 Canonical, Inc. / NASL script (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! preg(pattern:"^(12\.04|14\.04|15\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 12.04 / 14.04 / 15.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"12.04", pkgname:"postgresql-9.1", pkgver:"9.1.20-0ubuntu0.12.04")) flag++;
if (ubuntu_check(osver:"14.04", pkgname:"postgresql-9.3", pkgver:"9.3.11-0ubuntu0.14.04")) flag++;
if (ubuntu_check(osver:"15.10", pkgname:"postgresql-9.4", pkgver:"9.4.6-0ubuntu0.15.10")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "postgresql-9.1 / postgresql-9.3 / postgresql-9.4");
}
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-3475.NASL
    descriptionSeveral vulnerabilities have been found in PostgreSQL-9.1, a SQL database system. - CVE-2015-5288 Josh Kupershmidt discovered a vulnerability in the crypt() function in the pgCrypto extension. Certain invalid salt arguments can cause the server to crash or to disclose a few bytes of server memory. - CVE-2016-0766 A privilege escalation vulnerability for users of PL/Java was discovered. Certain custom configuration settings (GUCs) for PL/Java will now be modifiable only by the database superuser to mitigate this issue. - CVE-2016-0773 Tom Lane and Greg Stark discovered a flaw in the way PostgreSQL processes specially crafted regular expressions. Very large character ranges in bracket expressions could cause infinite loops or memory overwrites. A remote attacker can exploit this flaw to cause a denial of service or, potentially, to execute arbitrary code.
    last seen2020-06-01
    modified2020-06-02
    plugin id88726
    published2016-02-15
    reporterThis script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88726
    titleDebian DSA-3475-1 : postgresql-9.1 - security update
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3475. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(88726);
  script_version("2.10");
  script_cvs_date("Date: 2018/11/10 11:49:37");

  script_cve_id("CVE-2015-5288", "CVE-2016-0766", "CVE-2016-0773");
  script_xref(name:"DSA", value:"3475");

  script_name(english:"Debian DSA-3475-1 : postgresql-9.1 - security update");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Several vulnerabilities have been found in PostgreSQL-9.1, a SQL
database system.

  - CVE-2015-5288
    Josh Kupershmidt discovered a vulnerability in the
    crypt() function in the pgCrypto extension. Certain
    invalid salt arguments can cause the server to crash or
    to disclose a few bytes of server memory.

  - CVE-2016-0766
    A privilege escalation vulnerability for users of
    PL/Java was discovered. Certain custom configuration
    settings (GUCs) for PL/Java will now be modifiable only
    by the database superuser to mitigate this issue.

  - CVE-2016-0773
    Tom Lane and Greg Stark discovered a flaw in the way
    PostgreSQL processes specially crafted regular
    expressions. Very large character ranges in bracket
    expressions could cause infinite loops or memory
    overwrites. A remote attacker can exploit this flaw to
    cause a denial of service or, potentially, to execute
    arbitrary code."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2015-5288"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2016-0766"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2016-0773"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/wheezy/postgresql-9.1"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2016/dsa-3475"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the postgresql-9.1 packages.

For the oldstable distribution (wheezy), these problems have been
fixed in version 9.1.20-0+deb7u1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A: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_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-9.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2016/02/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/02/15");
  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:"Debian Local Security Checks");

  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:"7.0", prefix:"libecpg-compat3", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libecpg-dev", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libecpg6", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libpgtypes3", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libpq-dev", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"libpq5", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"postgresql-9.1", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"postgresql-9.1-dbg", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"postgresql-client-9.1", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"postgresql-contrib-9.1", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"postgresql-doc-9.1", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"postgresql-plperl-9.1", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"postgresql-plpython-9.1", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"postgresql-plpython3-9.1", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"postgresql-pltcl-9.1", reference:"9.1.20-0+deb7u1")) flag++;
if (deb_check(release:"7.0", prefix:"postgresql-server-dev-9.1", reference:"9.1.20-0+deb7u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2016-0555-1.NASL
    descriptionThis update for postgresql94 fixes the following issues : - Security and bugfix release 9.4.6 : - *** IMPORTANT *** Users of version 9.4 will need to reindex any jsonb_path_ops indexes they have created, in order to fix a persistent issue with missing index entries. - Fix infinite loops and buffer-overrun problems in regular expressions (CVE-2016-0773, bsc#966436). - Fix regular-expression compiler to handle loops of constraint arcs (CVE-2007-4772). - Prevent certain PL/Java parameters from being set by non-superusers (CVE-2016-0766, bsc#966435). - Fix many issues in pg_dump with specific object types - Prevent over-eager pushdown of HAVING clauses for GROUPING SETS - Fix deparsing error with ON CONFLICT ... WHERE clauses - Fix tableoid errors for postgres_fdw - Prevent floating-point exceptions in pgbench - Make \det search Foreign Table names consistently - Fix quoting of domain constraint names in pg_dump - Prevent putting expanded objects into Const nodes - Allow compile of PL/Java on Windows - Fix
    last seen2020-06-01
    modified2020-06-02
    plugin id88948
    published2016-02-25
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88948
    titleSUSE SLED12 / SLES12 Security Update : postgresql94 (SUSE-SU-2016:0555-1)
  • NASL familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_E8B6605BD29F11E584586CC21735F730.NASL
    descriptionPostgreSQL project reports : Security Fixes for Regular Expressions, PL/Java - CVE-2016-0773: This release closes security hole CVE-2016-0773, an issue with regular expression (regex) parsing. Prior code allowed users to pass in expressions which included out-of-range Unicode characters, triggering a backend crash. This issue is critical for PostgreSQL systems with untrusted users or which generate regexes based on user input. - CVE-2016-0766: The update also fixes CVE-2016-0766, a privilege escalation issue for users of PL/Java. Certain custom configuration settings (GUCS) for PL/Java will now be modifiable only by the database superuser
    last seen2020-06-01
    modified2020-06-02
    plugin id88731
    published2016-02-15
    reporterThis script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88731
    titleFreeBSD : PostgreSQL -- Security Fixes for Regular Expressions, PL/Java. (e8b6605b-d29f-11e5-8458-6cc21735f730)
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2016-271.NASL
    descriptionThis update for postgresql94 fixes the following issues : - Security and bugfix release 9.4.6 : - *** IMPORTANT *** Users of version 9.4 will need to reindex any jsonb_path_ops indexes they have created, in order to fix a persistent issue with missing index entries. - Fix infinite loops and buffer-overrun problems in regular expressions (CVE-2016-0773, bsc#966436). - Fix regular-expression compiler to handle loops of constraint arcs (CVE-2007-4772). - Prevent certain PL/Java parameters from being set by non-superusers (CVE-2016-0766, bsc#966435). - Fix many issues in pg_dump with specific object types - Prevent over-eager pushdown of HAVING clauses for GROUPING SETS - Fix deparsing error with ON CONFLICT ... WHERE clauses - Fix tableoid errors for postgres_fdw - Prevent floating-point exceptions in pgbench - Make \det search Foreign Table names consistently - Fix quoting of domain constraint names in pg_dump - Prevent putting expanded objects into Const nodes - Allow compile of PL/Java on Windows - Fix
    last seen2020-06-05
    modified2016-02-26
    plugin id88980
    published2016-02-26
    reporterThis script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88980
    titleopenSUSE Security Update : postgresql94 (openSUSE-2016-271)
  • NASL familySuSE Local Security Checks
    NASL idSUSE_SU-2016-0677-1.NASL
    descriptionThis update for postgresql94 fixes the following issues : - Security and bugfix release 9.4.6 : - *** IMPORTANT *** Users of version 9.4 will need to reindex any jsonb_path_ops indexes they have created, in order to fix a persistent issue with missing index entries. - Fix infinite loops and buffer-overrun problems in regular expressions (CVE-2016-0773, bsc#966436). - Fix regular-expression compiler to handle loops of constraint arcs (CVE-2007-4772). - Prevent certain PL/Java parameters from being set by non-superusers (CVE-2016-0766, bsc#966435). - Fix many issues in pg_dump with specific object types - Prevent over-eager pushdown of HAVING clauses for GROUPING SETS - Fix deparsing error with ON CONFLICT ... WHERE clauses - Fix tableoid errors for postgres_fdw - Prevent floating-point exceptions in pgbench - Make \det search Foreign Table names consistently - Fix quoting of domain constraint names in pg_dump - Prevent putting expanded objects into Const nodes - Allow compile of PL/Java on Windows - Fix
    last seen2020-06-01
    modified2020-06-02
    plugin id89730
    published2016-03-08
    reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/89730
    titleSUSE SLED11 / SLES11 Security Update : postgresql94 (SUSE-SU-2016:0677-1)
  • NASL familyDatabases
    NASL idPOSTGRESQL_20160215.NASL
    descriptionThe version of PostgreSQL installed on the remote host is 9.1.x prior to 9.1.20, 9.2.x prior to 9.2.15, 9.3.x prior to 9.3.11, 9.4.x prior to 9.4.6, or 9.5.x prior to 9.5.1. It is, therefore, affected by the following vulnerabilities : - An integer overflow condition exists due to improper validation of user-supplied input when handling regular expressions. An authenticated, remote attacker can exploit this, via a large Unicode character range in a regular expression, to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-0773) - A privilege escalation vulnerability exists due to a flaw in the init_custom_variable() function that is triggered during the handling of PL/Java. An authenticated, remote attacker can exploit this to gain elevation privileges. (CVE-2016-0766)
    last seen2020-06-01
    modified2020-06-02
    plugin id88808
    published2016-02-17
    reporterThis script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88808
    titlePostgreSQL 9.1.x < 9.1.20 / 9.2.x < 9.2.15 / 9.3.x < 9.3.11 / 9.4.x < 9.4.6 / 9.5.x < 9.5.1 Multiple Vulnerabilities
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201701-33.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201701-33 (PostgreSQL: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in PostgreSQL. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could possibly execute arbitrary code with the privileges of the process, cause a Denial of Service condition, or escalate privileges. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id96474
    published2017-01-13
    reporterThis script is Copyright (C) 2017 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/96474
    titleGLSA-201701-33 : PostgreSQL: Multiple vulnerabilities
  • NASL familySuSE Local Security Checks
    NASL idOPENSUSE-2016-253.NASL
    descriptionThis update for postgresql93 fixes the following issues : - Security and bugfix release 9.3.11 : - Fix infinite loops and buffer-overrun problems in regular expressions (CVE-2016-0773, boo#966436). - Fix regular-expression compiler to handle loops of constraint arcs (CVE-2007-4772). - Prevent certain PL/Java parameters from being set by non-superusers (CVE-2016-0766, boo#966435). - Fix many issues in pg_dump with specific object types - Prevent over-eager pushdown of HAVING clauses for GROUPING SETS - Fix deparsing error with ON CONFLICT ... WHERE clauses - Fix tableoid errors for postgres_fdw - Prevent floating-point exceptions in pgbench - Make \det search Foreign Table names consistently - Fix quoting of domain constraint names in pg_dump - Prevent putting expanded objects into Const nodes - Allow compile of PL/Java on Windows - Fix
    last seen2020-06-05
    modified2016-02-24
    plugin id88926
    published2016-02-24
    reporterThis script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/88926
    titleopenSUSE Security Update : postgresql93 (openSUSE-2016-253)

References