Execution time for an unsuccessful login differs when using a non-existing username compared to using an existing one.
Weakness
Two separate operations in a product require different amounts of time to complete, in a way that is observable to an actor and reveals security-relevant information about the state of the product, such as whether a particular operation was successful or not.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Zabbix | Zabbix | 5.0.0 (including) | 5.0.46 (excluding) |
| Zabbix | Zabbix | 6.0.0 (including) | 6.0.38 (excluding) |
| Zabbix | Zabbix | 7.0.0 (including) | 7.0.9 (excluding) |
| Zabbix | Zabbix | 7.2.0 (including) | 7.2.3 (excluding) |
| Zabbix | Ubuntu | focal | * |
| Zabbix | Ubuntu | oracular | * |
| Zabbix | Ubuntu | plucky | * |
Related Attack Patterns
- https://cwe.mitre.org/data/definitions/462.html
- https://cwe.mitre.org/data/definitions/541.html
- https://cwe.mitre.org/data/definitions/580.html