Vulnerability Details CVE-2017-7902
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 12.9%
CVSS Severity
CVSS v3 Score 9.8
CVSS v2 Score 5.0
Products affected by CVE-2017-7902
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cpe:2.3:a:rockwellautomation:1763-l16awa_series_a:14.000
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cpe:2.3:a:rockwellautomation:1763-l16awa_series_a:15.000
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cpe:2.3:a:rockwellautomation:1763-l16awa_series_a:16.000
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cpe:2.3:a:rockwellautomation:1763-l16awa_series_b:14.000
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cpe:2.3:a:rockwellautomation:1763-l16awa_series_b:15.000
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cpe:2.3:a:rockwellautomation:1763-l16awa_series_b:16.000
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cpe:2.3:a:rockwellautomation:1763-l16bbb_series_a:14.000
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cpe:2.3:a:rockwellautomation:1763-l16bbb_series_a:15.000
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cpe:2.3:a:rockwellautomation:1763-l16bbb_series_a:16.000
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cpe:2.3:a:rockwellautomation:1763-l16bbb_series_b:14.000
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cpe:2.3:a:rockwellautomation:1763-l16bbb_series_b:15.000
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cpe:2.3:a:rockwellautomation:1763-l16bbb_series_b:16.000
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cpe:2.3:a:rockwellautomation:1763-l16bwa_series_a:14.000
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cpe:2.3:a:rockwellautomation:1763-l16bwa_series_a:15.000
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cpe:2.3:a:rockwellautomation:1763-l16bwa_series_a:16.000
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cpe:2.3:a:rockwellautomation:1763-l16bwa_series_b:14.000
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cpe:2.3:a:rockwellautomation:1763-l16bwa_series_b:15.000
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cpe:2.3:a:rockwellautomation:1763-l16bwa_series_b:16.000
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cpe:2.3:a:rockwellautomation:1763-l16dwd_series_a:14.000
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cpe:2.3:a:rockwellautomation:1763-l16dwd_series_a:15.000
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cpe:2.3:a:rockwellautomation:1763-l16dwd_series_a:16.000
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cpe:2.3:a:rockwellautomation:1763-l16dwd_series_b:14.000
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cpe:2.3:a:rockwellautomation:1763-l16dwd_series_b:15.000
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cpe:2.3:a:rockwellautomation:1763-l16dwd_series_b:16.000
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cpe:2.3:a:rockwellautomation:1766-l32awa_series_a:15.004
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cpe:2.3:a:rockwellautomation:1766-l32awa_series_a:16.000
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cpe:2.3:a:rockwellautomation:1766-l32awa_series_b:15.004
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cpe:2.3:a:rockwellautomation:1766-l32awa_series_b:16.000
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cpe:2.3:a:rockwellautomation:1766-l32awaa_series_a:15.004
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cpe:2.3:a:rockwellautomation:1766-l32awaa_series_a:16.000
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cpe:2.3:a:rockwellautomation:1766-l32awaa_series_b:15.004
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cpe:2.3:a:rockwellautomation:1766-l32awaa_series_b:16.000
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cpe:2.3:a:rockwellautomation:1766-l32bwa_series_a:15.004
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cpe:2.3:a:rockwellautomation:1766-l32bwa_series_a:16.000
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cpe:2.3:a:rockwellautomation:1766-l32bwa_series_b:15.004
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cpe:2.3:a:rockwellautomation:1766-l32bwa_series_b:16.000
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cpe:2.3:a:rockwellautomation:1766-l32bwaa_series_a:15.004
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cpe:2.3:a:rockwellautomation:1766-l32bwaa_series_a:16.000
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cpe:2.3:a:rockwellautomation:1766-l32bwaa_series_b:15.004
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cpe:2.3:a:rockwellautomation:1766-l32bwaa_series_b:16.000
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cpe:2.3:a:rockwellautomation:1766-l32bxb_series_a:15.004
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cpe:2.3:a:rockwellautomation:1766-l32bxb_series_a:16.000
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cpe:2.3:a:rockwellautomation:1766-l32bxb_series_b:15.004
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cpe:2.3:a:rockwellautomation:1766-l32bxb_series_b:16.000
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cpe:2.3:a:rockwellautomation:1766-l32bxba_series_a:15.004
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cpe:2.3:a:rockwellautomation:1766-l32bxba_series_a:16.000
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cpe:2.3:a:rockwellautomation:1766-l32bxba_series_b:15.004
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cpe:2.3:a:rockwellautomation:1766-l32bxba_series_b:16.000
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cpe:2.3:h:rockwellautomation:ab_micrologix_controller:1100
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cpe:2.3:h:rockwellautomation:ab_micrologix_controller:1400