GHSA-4whx-7p29-mq22 TiDB authentication bypass vulnerability

• Go github.com/pingcap/tidb: >= 5.3.0, < 5.3.1 → fixed in 5.3.1 • Go github.com/pingcap/tidb: >= 0.0.0-20210808221113-a7fdc2a05663, < 0.0.0-20220221072141-27ffd1126da1 → fixed in 0.0.0-20220221072141-27ffd1126da1 • Go github.com/pingcap/tidb: >= 1.1.0-beta.0.20210808221113-a7fdc2a05663, < 1.1.0-beta.0.20220221072141-27ffd1126da1 → fixed in 1.1.0-beta.0.20220221072141-27ffd1126da1

Impact Under certain conditions, an attacker can construct malicious authentication requests to bypass the authentication process, resulting in privilege escalation or unauthorized access. Only users using TiDB 5.3.0 are affected by this vulnerability. Patches Please upgrade to TiDB 5.3.1 or higher version Workarounds You can also mitigate risks by taking the following measures. Option 1: Turn off SEM (Security Enhanced Mode). Option 2: Disable local login for non-root accounts and ensure that the same IP cannot be logged in as root or normal user at the same time. References https://en.pingcap.com/download/ For more information If you have any questions or comments about this advisory: • Email us at [email protected]