A Reusing a Nonce, Key Pair in Encryption issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA, Series A and B, Version 16.00 and prior versions; 1763-L16BBB, Series A and B, Version 16.00 and prior versions; 1763-L16BWA, Series A and B, Version 16.00 and prior versions; and 1763-L16DWD, Series A and B, Version 16.00 and prior versions and Allen-Bradley MicroLogix 1400 programmable logic controllers 1766-L32AWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWAA, Series A and B, Version 16.00 and prior versions; 1766-L32BXB, Series A and B, Version 16.00 and prior versions; 1766-L32BXBA, Series A and B, Version 16.00 and prior versions; and 1766-L32AWAA, Series A and B, Version 16.00 and prior versions. The affected product reuses nonces, which may allow an attacker to capture and replay a valid request until the nonce is changed.
Nonces should be used for the present occasion and only once.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| 1763-l16awa_series_a | Rockwellautomation | * | 16.000 (including) |
| 1763-l16awa_series_b | Rockwellautomation | * | 16.000 (including) |
| 1763-l16bbb_series_a | Rockwellautomation | * | 16.000 (including) |
| 1763-l16bbb_series_b | Rockwellautomation | * | 16.000 (including) |
| 1763-l16bwa_series_a | Rockwellautomation | * | 16.000 (including) |
| 1763-l16bwa_series_b | Rockwellautomation | * | 16.000 (including) |
| 1763-l16dwd_series_a | Rockwellautomation | * | 16.000 (including) |
| 1763-l16dwd_series_b | Rockwellautomation | * | 16.000 (including) |