An authenticated remote attacker can cause a null pointer dereference in the CmpSettings component of the affected CODESYS products which leads to a crash.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Control_for_beaglebone_sl | Codesys | * | 4.5.0.0 (excluding) |
| Control_for_beckhoff_cx9020 | Codesys | * | 4.5.0.0 (excluding) |
| Control_for_empc-a/imx6_sl | Codesys | * | 4.5.0.0 (excluding) |
| Control_for_iot2000_sl | Codesys | * | 4.5.0.0 (excluding) |
| Control_for_linux_sl | Codesys | * | 4.5.0.0 (excluding) |
| Control_for_pfc100_sl | Codesys | * | 4.5.0.0 (excluding) |
| Control_for_pfc200_sl | Codesys | * | 4.5.0.0 (excluding) |
| Control_for_plcnext_sl | Codesys | * | 4.5.0.0 (excluding) |
| Control_for_raspberry_pi_sl | Codesys | * | 4.5.0.0 (excluding) |
| Control_for_wago_touch_panels_600_sl | Codesys | * | 4.5.0.0 (excluding) |
| Control_rte_sl | Codesys | * | 3.5.18.0 (excluding) |
| Control_rte_sl_(for_beckhoff_cx) | Codesys | * | 3.5.18.0 (excluding) |
| Control_runtime_system_toolkit | Codesys | * | 3.5.18.0 (excluding) |
| Control_win_sl | Codesys | * | 3.5.18.0 (excluding) |
| Development_system | Codesys | * | 3.5.18.0 (excluding) |
| Edge_gateway | Codesys | * | 3.5.18.0 (excluding) |
| Edge_gateway | Codesys | * | 4.5.0.0 (excluding) |
| Embedded_target_visu_toolkit | Codesys | * | 3.5.18.0 (excluding) |
| Gateway | Codesys | * | 3.5.18.0 (excluding) |
| Hmi_sl | Codesys | * | 3.5.18.0 (excluding) |
| Remote_target_visu_toolkit | Codesys | * | 3.5.18.0 (excluding) |
Potential Mitigations
References
- https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=17093\u0026token=15cd8424832ea10dcd4873a409a09a539ee381ca\u0026download=
- https://customers.codesys.com/index.php?eID=dumpFile\u0026t=f\u0026f=17093\u0026token=15cd8424832ea10dcd4873a409a09a539ee381ca\u0026download=