CVE-2017-12172 Information

Description

PostgreSQL 10.x before 10.1 9.6.x before 9.6.6 9.5.x before 9.5.10 9.4.x before 9.4.15 9.3.x before 9.3.20 and 9.2.x before 9.2.24 runs under a non-root operating system account and database superusers have effective ability to run arbitrary code under that system account. PostgreSQL provides a script for starting the database server during system boot. Packages of PostgreSQL for many operating systems provide their own packager-authored startup implementations. Several implementations use a log file name that the database superuser can replace with a symbolic link. As root they open() chmod() and/or chown() this log file name. This often suffices for the database superuser to escalate to root privileges when root starts the server.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/101949 http://www.securitytracker.com/id/1039752 https://access.redhat.com/errata/RHSA-2017:3402 https://access.redhat.com/errata/RHSA-2017:3403 https://access.redhat.com/errata/RHSA-2017:3404 https://access.redhat.com/errata/RHSA-2017:3405 https://www.postgresql.org/about/news/1801/ https://www.postgresql.org/support/security/

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction Required

HIGH

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

6.7