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Amazon Linux 2 : postgresql (ALASPOSTGRESQL13-2024-008)

high Nessus Plugin ID 213349

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Synopsis

The remote Amazon Linux 2 host is missing a security update.

Description

The version of postgresql installed on the remote host is prior to 13.17-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2POSTGRESQL13-2024-008 advisory.

 Incomplete tracking in PostgreSQL of tables with row security allows a reused query to view or change different rows from those intended. CVE-2023-2455 and CVE-2016-2193 fixed most interaction between row security and user ID changes. They missed cases where a subquery, WITH query, security invoker view, or SQL-language function references a table with a row-level security policy. This has the same consequences as the two earlier CVEs. That is to say, it leads to potentially incorrect policies being applied in cases where role-specific policies are used and a given query is planned under one role and then executed under other roles. This scenario can happen under security definer functions or when a common user and query is planned initially and then re-used across multiple SET ROLEs. Applying an incorrect policy may permit a user to complete otherwise-forbidden reads and modifications. This affects only databases that have used CREATE POLICY to define a row security policy. An attacker must tailor an attack to a particular application's pattern of query plan reuse, user ID changes, and role-specific row security policies. Versions before PostgreSQL 17.1, 16.5, 15.9, 14.14, 13.17, and 12.21 are affected.
 (CVE-2024-10976)

 Client use of server error message in PostgreSQL allows a server not trusted under current SSL or GSS settings to furnish arbitrary non-NUL bytes to the libpq application. For example, a man-in-the-middle attacker could send a long error message that a human or screen-scraper user of psql mistakes for valid query results. This is probably not a concern for clients where the user interface unambiguously indicates the boundary between one error message and other text. Versions before PostgreSQL 17.1, 16.5, 15.9, 14.14, 13.17, and 12.21 are affected. (CVE-2024-10977)

 Incorrect privilege assignment in PostgreSQL allows a less-privileged application user to view or change different rows from those intended. An attack requires the application to use SET ROLE, SET SESSION AUTHORIZATION, or an equivalent feature. The problem arises when an application query uses parameters from the attacker or conveys query results to the attacker. If that query reacts to current_setting('role') or the current user ID, it may modify or return data as though the session had not used SET ROLE or SET SESSION AUTHORIZATION. The attacker does not control which incorrect user ID applies. Query text from less-privileged sources is not a concern here, because SET ROLE and SET SESSION AUTHORIZATION are not sandboxes for unvetted queries. Versions before PostgreSQL 17.1, 16.5, 15.9, 14.14, 13.17, and 12.21 are affected. (CVE-2024-10978)

 Incorrect control of environment variables in PostgreSQL PL/Perl allows an unprivileged database user to change sensitive process environment variables (e.g. PATH). That often suffices to enable arbitrary code execution, even if the attacker lacks a database server operating system user. Versions before PostgreSQL 17.1, 16.5, 15.9, 14.14, 13.17, and 12.21 are affected. (CVE-2024-10979)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Run 'yum update postgresql' to update your system.

See Also

https://alas.aws.amazon.com/faqs.html

https://alas.aws.amazon.com/cve/html/CVE-2024-10976.html

https://alas.aws.amazon.com/cve/html/CVE-2024-10977.html

https://alas.aws.amazon.com/cve/html/CVE-2024-10978.html

https://alas.aws.amazon.com/cve/html/CVE-2024-10979.html

https://alas.aws.amazon.com/AL2/ALASPOSTGRESQL13-2024-008.html

Plugin Details

Severity: High

ID: 213349

File Name: al2_ALASPOSTGRESQL13-2024-008.nasl

Version: 1.1

Type: local

Agent: unix

Published: 12/23/2024

Updated: 12/23/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 6.7

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

CVSS Score Source: CVE-2024-10979

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

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

Vulnerability Information

CPE: cpe:/o:amazon:linux:2, p-cpe:/a:amazon:linux:postgresql, p-cpe:/a:amazon:linux:postgresql-contrib, p-cpe:/a:amazon:linux:postgresql-debuginfo, p-cpe:/a:amazon:linux:postgresql-docs, p-cpe:/a:amazon:linux:postgresql-plperl, p-cpe:/a:amazon:linux:postgresql-pltcl, p-cpe:/a:amazon:linux:postgresql-server, p-cpe:/a:amazon:linux:postgresql-static, p-cpe:/a:amazon:linux:postgresql-test, p-cpe:/a:amazon:linux:postgresql-upgrade, p-cpe:/a:amazon:linux:postgresql-plpython3, p-cpe:/a:amazon:linux:postgresql-server-devel, p-cpe:/a:amazon:linux:postgresql-test-rpm-macros, p-cpe:/a:amazon:linux:postgresql-upgrade-devel, p-cpe:/a:amazon:linux:postgresql-llvmjit, p-cpe:/a:amazon:linux:postgresql-private-devel, p-cpe:/a:amazon:linux:postgresql-private-libs

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 12/5/2024

Vulnerability Publication Date: 11/12/2024

Reference Information

CVE: CVE-2024-10976, CVE-2024-10977, CVE-2024-10978, CVE-2024-10979

IAVB: 2024-B-0175