CVE-2020-28912 Information

Description

With MariaDB running on Windows when local clients connect to the server over named pipes it’s possible for an unprivileged user with an ability to run code on the server machine to intercept the named pipe connection and act as a man-in-the-middle gaining access to all the data passed between the client and the server and getting the ability to run SQL commands on behalf of the connected user. This occurs because of an incorrect security descriptor. This affects MariaDB Server before 10.1.48 10.2.x before 10.2.35 10.3.x before 10.3.26 10.4.x before 10.4.16 and 10.5.x before 10.5.7. NOTE: this issue exists because certain details of the MariaDB CVE-2019-2503 fix did not comprehensively address attack variants against MariaDB. This situation is specific to MariaDB and thus CVE-2020-28912 does NOT apply to other vendors that were originally affected by CVE-2019-2503.

CVSS Vector

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

Reference

https://hackerone.com/reports/1019891 https://jira.mariadb.org/browse/MDEV-24040

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

7.0