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nessusThis script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DSA-4568.NASL
HistoryNov 18, 2019 - 12:00 a.m.

Debian DSA-4568-1 : postgresql-common - security update

2019-11-1800:00:00
This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
10

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.7 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.0004 Low

EPSS

Percentile

5.1%

Rich Mirch discovered that the pg_ctlcluster script didn’t drop privileges when creating socket/statistics temporary directories, which could result in local privilege escalation.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4568. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(131086);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/11");

  script_cve_id("CVE-2019-3466");
  script_xref(name:"DSA", value:"4568");

  script_name(english:"Debian DSA-4568-1 : postgresql-common - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
  script_set_attribute(attribute:"description", value:
"Rich Mirch discovered that the pg_ctlcluster script didn't drop
privileges when creating socket/statistics temporary directories,
which could result in local privilege escalation.");
  # https://security-tracker.debian.org/tracker/source-package/postgresql-common
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1fbac7f5");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/postgresql-common");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/postgresql-common");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2019/dsa-4568");
  script_set_attribute(attribute:"solution", value:
"Upgrade the postgresql-common packages.

For the oldstable distribution (stretch), this problem has been fixed
in version 9.6+181+deb9u3.

For the stable distribution (buster), this problem has been fixed in
version 11+200+deb10u3.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-3466");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/11/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2019/11/14");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/18");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:postgresql-common");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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:"10.0", prefix:"postgresql", reference:"11+200+deb10u3")) flag++;
if (deb_check(release:"10.0", prefix:"postgresql-all", reference:"11+200+deb10u3")) flag++;
if (deb_check(release:"10.0", prefix:"postgresql-client", reference:"11+200+deb10u3")) flag++;
if (deb_check(release:"10.0", prefix:"postgresql-contrib", reference:"11+200+deb10u3")) flag++;
if (deb_check(release:"10.0", prefix:"postgresql-doc", reference:"11+200+deb10u3")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql", reference:"9.6+181+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql-all", reference:"9.6+181+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql-client", reference:"9.6+181+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql-contrib", reference:"9.6+181+deb9u3")) flag++;
if (deb_check(release:"9.0", prefix:"postgresql-doc", reference:"9.6+181+deb9u3")) 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");
VendorProductVersionCPE
debiandebian_linuxpostgresql-commonp-cpe:/a:debian:debian_linux:postgresql-common
debiandebian_linux10.0cpe:/o:debian:debian_linux:10.0
debiandebian_linux9.0cpe:/o:debian:debian_linux:9.0

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.7 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.0004 Low

EPSS

Percentile

5.1%