Critical severity · published Jun 30, 2017
CVE-2017-7898
An Improper Restriction of Excessive Authentication Attempts issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA,…
9.8
CVSS
5.2%
EPSS
No
On KEV
Description
An Improper Restriction of Excessive Authentication Attempts 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. There are no penalties for repeatedly entering incorrect passwords.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)5.2% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
1S
1763-l16awa Series A · Rockwellautomation
through 16.000 · source: NVD
1S
1763-l16awa Series B · Rockwellautomation
through 16.000 · source: NVD
1S
1763-l16bbb Series A · Rockwellautomation
through 16.000 · source: NVD
1S
1763-l16bbb Series B · Rockwellautomation
through 16.000 · source: NVD
1S
1763-l16bwa Series A · Rockwellautomation
through 16.000 · source: NVD
1S
1763-l16bwa Series B · Rockwellautomation
through 16.000 · source: NVD
1S
1763-l16dwd Series A · Rockwellautomation
through 16.000 · source: NVD
1S
1763-l16dwd Series B · Rockwellautomation
through 16.000 · source: NVD
1S
1766-l32awa Series A · Rockwellautomation
through 16.000 · source: NVD
1S
1766-l32awa Series B · Rockwellautomation
through 16.000 · source: NVD
1S
1766-l32awaa Series A · Rockwellautomation
through 16.000 · source: NVD
1S
1766-l32awaa Series B · Rockwellautomation
through 16.000 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-7898
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-7898
www.securitytracker.com
http://www.securitytracker.com/id/1038546
Patch
https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04
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