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FreeBSD : PostgreSQL -- SQL injection in pg_upgrade and pg_dump (1c27a706-e3aa-11e8-b77a-6cc21735f730)

critical Nessus Plugin ID 118844

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

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.

Solution

Update the affected packages.

See Also

https://www.postgresql.org/about/news/1905/

http://www.nessus.org/u?a27035c3

Plugin Details

Severity: Critical

ID: 118844

File Name: freebsd_pkg_1c27a706e3aa11e8b77a6cc21735f730.nasl

Version: 1.4

Type: local

Published: 11/9/2018

Updated: 4/14/2021

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:postgresql10-server, p-cpe:/a:freebsd:freebsd:postgresql93-server, p-cpe:/a:freebsd:freebsd:postgresql94-server, p-cpe:/a:freebsd:freebsd:postgresql95-server, p-cpe:/a:freebsd:freebsd:postgresql96-server, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 11/8/2018

Vulnerability Publication Date: 11/8/2018

Reference Information

CVE: CVE-2018-16850