Debian DSA-3936-1 : postgresql-9.6 - security update

2017-08-14T00:00:00
ID DEBIAN_DSA-3936.NASL
Type nessus
Reporter This script is Copyright (C) 2017-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-08-02T00:00:00

Description

Several vulnerabilities have been found in the PostgreSQL database system :

  • CVE-2017-7546 In some authentication methods empty passwords were accepted.

  • CVE-2017-7547 User mappings could leak data to unprivileged users.

  • CVE-2017-7548 The lo_put() function ignored ACLs.

For more in-depth descriptions of the security vulnerabilities, please see https://www.postgresql.org/about/news/1772/

                                        
                                            #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3936. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(102443);
  script_version("3.10");
  script_cvs_date("Date: 2018/11/10 11:49:38");

  script_cve_id("CVE-2017-7546", "CVE-2017-7547", "CVE-2017-7548");
  script_xref(name:"DSA", value:"3936");

  script_name(english:"Debian DSA-3936-1 : postgresql-9.6 - 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 the PostgreSQL database
system :

  - CVE-2017-7546
    In some authentication methods empty passwords were
    accepted.

  - CVE-2017-7547
    User mappings could leak data to unprivileged users.

  - CVE-2017-7548
    The lo_put() function ignored ACLs.

  For more in-depth descriptions of the security vulnerabilities,
  please see https://www.postgresql.org/about/news/1772/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-7546"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-7547"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2017-7548"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.postgresql.org/about/news/1772/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/postgresql-9.6"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2017/dsa-3936"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the postgresql-9.6 packages.

For the stable distribution (stretch), these problems have been fixed
in version 9.6.4-0+deb9u1."
  );
  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:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-9.6");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/08/10");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/08/14");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2018 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:"9.0", prefix:"libecpg-compat3", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libecpg-dev", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libecpg6", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libpgtypes3", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libpq-dev", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libpq5", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql-9.6", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql-9.6-dbg", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql-client-9.6", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql-contrib-9.6", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql-doc-9.6", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql-plperl-9.6", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql-plpython-9.6", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql-plpython3-9.6", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql-pltcl-9.6", reference:"9.6.4-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql-server-dev-9.6", reference:"9.6.4-0+deb9u1")) 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");