CVE-2017-7901
Description
A Predictable Value Range from Previous Values 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. Insufficiently random TCP initial sequence numbers are generated, which may allow an attacker to predict the numbers from previous values. This may allow an attacker to spoof or disrupt TCP connections, resulting in a denial of service for the target device.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
20- cpe:2.3:a:rockwellautomation:1763-l16awa_series_a:*:*:*:*:*:*:*:*Range: <=16.000
- cpe:2.3:a:rockwellautomation:1763-l16awa_series_b:*:*:*:*:*:*:*:*Range: <=16.000
cpe:2.3:a:rockwellautomation:1763-l16bbb_series_a:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:rockwellautomation:1763-l16bbb_series_a:*:*:*:*:*:*:*:*range: <=16.000
- cpe:2.3:a:rockwellautomation:1763-l16bwa_series_a:*:*:*:*:*:*:*:*range: <=16.000
- cpe:2.3:a:rockwellautomation:1763-l16bbb_series_b:*:*:*:*:*:*:*:*Range: <=16.000
- cpe:2.3:a:rockwellautomation:1763-l16bwa_series_b:*:*:*:*:*:*:*:*Range: <=16.000
- cpe:2.3:a:rockwellautomation:1763-l16dwd_series_a:*:*:*:*:*:*:*:*Range: <=16.000
- cpe:2.3:a:rockwellautomation:1763-l16dwd_series_b:*:*:*:*:*:*:*:*Range: <=16.000
cpe:2.3:a:rockwellautomation:1766-l32awaa_series_a:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:a:rockwellautomation:1766-l32awaa_series_a:*:*:*:*:*:*:*:*range: <=16.000
- cpe:2.3:a:rockwellautomation:1766-l32awa_series_a:*:*:*:*:*:*:*:*range: <=16.000
- cpe:2.3:a:rockwellautomation:1766-l32bwaa_series_b:*:*:*:*:*:*:*:*range: <=16.000
- cpe:2.3:a:rockwellautomation:1766-l32bwa_series_a:*:*:*:*:*:*:*:*range: <=16.000
cpe:2.3:a:rockwellautomation:1766-l32awaa_series_b:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:rockwellautomation:1766-l32awaa_series_b:*:*:*:*:*:*:*:*range: <=16.000
- cpe:2.3:a:rockwellautomation:1766-l32bxb_series_b:*:*:*:*:*:*:*:*range: <=16.000
- cpe:2.3:a:rockwellautomation:1766-l32awa_series_b:*:*:*:*:*:*:*:*Range: <=16.000
- cpe:2.3:a:rockwellautomation:1766-l32bwaa_series_a:*:*:*:*:*:*:*:*Range: <=16.000
- cpe:2.3:a:rockwellautomation:1766-l32bwa_series_b:*:*:*:*:*:*:*:*Range: <=16.000
- cpe:2.3:a:rockwellautomation:1766-l32bxba_series_a:*:*:*:*:*:*:*:*Range: <=16.000
- cpe:2.3:a:rockwellautomation:1766-l32bxba_series_b:*:*:*:*:*:*:*:*Range: <=16.000
- cpe:2.3:a:rockwellautomation:1766-l32bxb_series_a:*:*:*:*:*:*:*:*Range: <=16.000
Patches
Vulnerability mechanics
References
2- ics-cert.us-cert.gov/advisories/ICSA-17-115-04nvdPatchThird Party AdvisoryUS Government Resource
- www.securitytracker.com/id/1038546nvd
News mentions
0No linked articles in our index yet.