CVE-2017-7899

high-risk
Published 2017-06-30

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.

Do I need to act?

~
3.5% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (20)

1763-L16Awa Series A
1763-L16Bbb Series A
1763-L16Bbb Series B
1766-L32Awaa Series A
1766-L32Bwa Series B
1766-L32Bwaa Series A
1766-L32Bwaa Series B
1766-L32Bxba Series A
1763-L16Awa Series B
1763-L16Bwa Series A
1763-L16Bwa Series B
1763-L16Dwd Series A
1763-L16Dwd Series B
1766-L32Awa Series A
1766-L32Awa Series B
1766-L32Awaa Series B
1766-L32Bwa Series A
1766-L32Bxb Series A
1766-L32Bxb Series B
1766-L32Bxba Series B

Affected Vendors

Rockwellautomation

References (4)

http://www.securitytracker.com/id/1038546
Patch https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04
http://www.securitytracker.com/id/1038546
Patch https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04
59
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 7/34 · Low
Exposure 20/34 · Moderate