CVE-2017-7902
Last modified
CVE-2017-7902 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.56% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Rockwellautomation | 1763-L16awa Series A | <= 16.000 |
| Rockwellautomation | 1763-L16awa Series B | <= 16.000 |
| Rockwellautomation | 1763-L16bbb Series A | <= 16.000 |
| Rockwellautomation | 1763-L16bbb Series B | <= 16.000 |
| Rockwellautomation | 1763-L16bwa Series A | <= 16.000 |
| Rockwellautomation | 1763-L16bwa Series B | <= 16.000 |
| Rockwellautomation | 1763-L16dwd Series A | <= 16.000 |
| Rockwellautomation | 1763-L16dwd Series B | <= 16.000 |
| Rockwellautomation | 1766-L32awa Series A | <= 16.000 |
| Rockwellautomation | 1766-L32awa Series B | <= 16.000 |
| Rockwellautomation | 1766-L32awaa Series A | <= 16.000 |
| Rockwellautomation | 1766-L32awaa Series B | <= 16.000 |
| Rockwellautomation | 1766-L32bwa Series A | <= 16.000 |
| Rockwellautomation | 1766-L32bwa Series B | <= 16.000 |
| Rockwellautomation | 1766-L32bwaa Series A | <= 16.000 |
| Rockwellautomation | 1766-L32bwaa Series B | <= 16.000 |
| Rockwellautomation | 1766-L32bxb Series A | <= 16.000 |
| Rockwellautomation | 1766-L32bxb Series B | <= 16.000 |
| Rockwellautomation | 1766-L32bxba Series A | <= 16.000 |
| Rockwellautomation | 1766-L32bxba Series B | <= 16.000 |
References
- http://www.securitytracker.com/id/1038546Third Party Advisory, VDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04Patch, Third Party Advisory, US Government Resource
- http://www.securitytracker.com/id/1038546Third Party Advisory, VDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04Patch, Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Modified
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