PostgreSQL 9.2.x < 9.2.21 / 9.3.x < 9.3.17 / 9.4.x < 9.4.12 / 9.5.x < 9.5.7 / 9.6.x < 9.6.3 Multiple Vulnerabilities

Medium Nessus Plugin ID 100260

Synopsis

The remote database server is affected by multiple vulnerabilities.

Description

The version of PostgreSQL installed on the remote host is 9.2.x prior to 9.2.21, 9.3.x prior to 9.3.17, 9.4.x prior to 9.4.12, 9.5.x prior to 9.5.7, or 9.6.x prior to 9.6.3. It is, therefore, affected by multiple vulnerabilities :

- A information disclosure vulnerability exists in unspecified selectivity estimation functions due to improper checking of user privileges before providing information from pg_statistics. An authenticated, remote attacker can exploit this to disclose potentially sensitive information from restricted tables.
(CVE-2017-7484)

- A flaw exists because the PGREQUIRESSL environment variable setting is not properly honored, which results in a failure to require appropriate SSL/TLS connections.
A man-in-the-middle attacker can exploit this to cause an insecure, non-SSL/TLS connection between a client and and a server. Note that version 9.2.x is not affected by this vulnerability. (CVE-2017-7485)

- A information disclosure vulnerability exists in the pg_user_mappings view that allows access to user mappings which may contain passwords that have persisted from the CREATE USER MAPPING command. An authenticated, remote attacker who has USAGE privilege on the associated foreign server can exploit this to disclose foreign server passwords. (CVE-2017-7486)

Solution

Upgrade to PostgreSQL version 9.2.21 / 9.3.17 / 9.4.12 / 9.5.7 / 9.6.3 or later.

See Also

https://www.postgresql.org/about/news/1746/

https://www.postgresql.org/docs/current/static/release-9-2-21.html

https://www.postgresql.org/docs/current/static/release-9-3-17.html

https://www.postgresql.org/docs/current/static/release-9-4-12.html

https://www.postgresql.org/docs/current/static/release-9-5-7.html

https://www.postgresql.org/docs/current/static/release-9-6-3.html

Plugin Details

Severity: Medium

ID: 100260

File Name: postgresql_20170511.nasl

Version: 1.10

Type: local

Family: Databases

Published: 2017/05/17

Modified: 2018/09/17

Dependencies: 63346

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2017-7484

CVSSv2

Base Score: 4

Temporal Score: 3

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSSv3

Base Score: 4.3

Temporal Score: 3.8

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

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

Vulnerability Information

CPE: cpe:/a:postgresql:postgresql

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2017/05/11

Vulnerability Publication Date: 2017/05/11

Reference Information

CVE: CVE-2017-7484, CVE-2017-7485, CVE-2017-7486

BID: 98459, 98460, 98461