CVE-2019-10128 - EDB supplied PostgreSQL inherits ACL for installation directory

First Published: 2021/03/19

Last Updated: 2022/01/01

Summary

A vulnerability was found in PostgreSQL versions 11.x prior to 11.3. The Windows installer for EnterpriseDB-supplied PostgreSQL does not lock down the ACL of the binary installation directory or the ACL of the data directory; it keeps the inherited ACL. In the default configuration, this allows a local attacker to read arbitrary data directory files, essentially bypassing database-imposed read access limitations. In plausible non-default configurations, an attacker having both an unprivileged Windows account and an unprivileged PostgreSQL account can cause the PostgreSQL service account to execute arbitrary code.

Vulnerability details

CVE-ID: CVE-2019-10128

CVSS Base Score: 7.8

CVSS Temporal Score: Undefined

CVSS Environmental Score: Undefined

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

Affected products and versions

PostgreSQL

• All versions up to 9.4.21
• 9.5.0 to 9.5.16
• 9.6.0 to 9.6.12
• 10.0 to 10.7
• 11.0 to 11.2

Remediation/fixes

References

• https://www.first.org/cvss/calculator/3.1
• CWE-284 Improper Access Control

Related information

• EnterpriseDB
• PostgreSQL
• EDB Blogs link

Acknowledgement

Source: Red Hat Inc

Change history

26 July 2023: Original Copy Published

Disclaimer

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