CVE-2017-7902

9.8 CRITICAL
Published: June 30, 2017 Modified: May 13, 2026
View on NVD

Description

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securitytracker.com/id/1038546
Source: ics-cert@hq.dhs.gov
Third Party Advisory VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04
Source: ics-cert@hq.dhs.gov
Patch Third Party Advisory US Government Resource
http://www.securitytracker.com/id/1038546
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Third Party Advisory US Government Resource

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
2.6%
83th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

rockwellautomation