What’s Vulnerable › Vulnerabilities

CVE-2017-7899

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-06-30 · updated 2026-06-17
• Weakness: CWE-200

Description

An Information Exposure 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. User credentials are sent to the web server using the HTTP GET method, which may result in the credentials being logged. This could make user credentials available for unauthorized retrieval.

Affected products

• Rockwellautomation 1763-L16Awa Series A: through 16.000
• Rockwellautomation 1763-L16Awa Series B: through 16.000
• Rockwellautomation 1763-L16Bbb Series A: through 16.000
• Rockwellautomation 1763-L16Bbb Series B: through 16.000
• Rockwellautomation 1763-L16Bwa Series A: through 16.000
• Rockwellautomation 1763-L16Bwa Series B: through 16.000
• Rockwellautomation 1763-L16Dwd Series A: through 16.000
• Rockwellautomation 1763-L16Dwd Series B: through 16.000
• Rockwellautomation 1766-L32Awa Series A: through 16.000
• Rockwellautomation 1766-L32Awa Series B: through 16.000
• Rockwellautomation 1766-L32Awaa Series A: through 16.000
• Rockwellautomation 1766-L32Awaa Series B: through 16.000
• Rockwellautomation 1766-L32Bwa Series A: through 16.000
• Rockwellautomation 1766-L32Bwa Series B: through 16.000
• Rockwellautomation 1766-L32Bwaa Series A: through 16.000
• Rockwellautomation 1766-L32Bwaa Series B: through 16.000
• Rockwellautomation 1766-L32Bxb Series A: through 16.000
• Rockwellautomation 1766-L32Bxb Series B: through 16.000
• Rockwellautomation 1766-L32Bxba Series A: through 16.000
• Rockwellautomation 1766-L32Bxba Series B: through 16.000

References

• http://www.securitytracker.com/id/1038546
• https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04
• http://www.securitytracker.com/id/1038546
• https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04

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