CVE-2020-26273 Information

Description

osquery is a SQL powered operating system instrumentation monitoring and analytics framework. In osquery before version 4.6.0 by using sqlite’s ATTACH verb someone with administrative access to osquery can cause reads and writes to arbitrary sqlite databases on disk. This does allow arbitrary files to be created but they will be sqlite databases. It does not appear to allow existing non-sqlite files to be overwritten. This has been patched in osquery 4.6.0. There are several mitigating factors and possible workarounds. In some deployments the people with access to these interfaces may be considered administrators. In some deployments configuration is managed by a central tool. This tool can filter for the ATTACH keyword. osquery can be run as non-root user. Because this also limits the desired access levels this requires deployment specific testing and configuration.

CVSS Vector

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

Reference

https://github.com/swisskyrepo/PayloadsAllTheThings/blob/master/SQL%20Injection/SQLite%20Injection.md#remote-command-execution-using-sqlite-command—load_extension https://github.com/osquery/osquery/commit/c3f9a3dae22d43ed3b4f6a403cbf89da4cba7c3c https://github.com/osquery/osquery/security/advisories/GHSA-4g56-2482-x7q8 https://github.com/osquery/osquery/releases/tag/4.6.0

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

CHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

5.2