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.
| Software | From | Fixed in |
|---|---|---|
| postgresql / postgresql | - | 9.4.22 |
| postgresql / postgresql | 10.0 | 10.8 |
| postgresql / postgresql | 11.0 | 11.3 |
| postgresql / postgresql | 9.5.0 | 9.5.17 |
| postgresql / postgresql | 9.6.0 | 9.6.13 |