// For flags

CVE-2017-7902

 

Severity Score

9.8
*CVSS v3

Exploit Likelihood

< 1%
*EPSS

Affected Versions

20
*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Se detectó un problema de "Reusing a Nonce, Key Pair in Encryption" en los controladores de lógica programable MicroLogix 1100 de Allen-Bradley 1763-L16AWA, Serie A y B, Versión 16.00 y versiones anteriores; 1763-L16BBB, Serie A y B, Versión 16.00 y versiones anteriores; 1763-L16BWA, Serie A y B, Versión 16.00 y versiones anteriores; y 1763-L16DWD, Serie A y B, Versión 16.00 y versiones anteriores y Controladores lógicos programables Allen-Bradley MicroLogix 1400 1766-L32AWA, Serie A y B, Versión 16.00 y versiones anteriores; 1766-L32BWA, Series A y B, versión 16.00 y versiones anteriores; 1766-L32BWAA, Serie A y B, Versión 16.00 y versiones anteriores; 1766-L32BXB, Serie A y B, Versión 16.00 y versiones anteriores; 1766-L32BXBA, Serie A y B, Versión 16.00 y versiones anteriores; y 1766-L32AWAA, Serie A y B, Versión 16.00 y versiones anteriores. El producto afectado reutiliza nonces, lo que puede permitir que un atacante capture y reproduzca una solicitud válida hasta que se cambie el nonce.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2017-04-18 CVE Reserved
  • 2017-06-30 CVE Published
  • 2024-08-05 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-323: Reusing a Nonce, Key Pair in Encryption
  • CWE-330: Use of Insufficiently Random Values
CAPEC
References (2)
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions (20)