9.8
CRITICAL
CVE-2017-7902
Rockwell Automation Allen-Bradley Nonce Reuse (Prediction and Replay)
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.

INFO

Published Date :

June 30, 2017, 3:29 a.m.

Last Modified :

Nov. 21, 2024, 3:32 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2017-7902 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Rockwellautomation ab_micrologix_controller
2 Rockwellautomation 1763-l16awa_series_a
3 Rockwellautomation 1763-l16awa_series_b
4 Rockwellautomation 1763-l16bbb_series_a
5 Rockwellautomation 1763-l16bbb_series_b
6 Rockwellautomation 1763-l16bwa_series_a
7 Rockwellautomation 1763-l16bwa_series_b
8 Rockwellautomation 1763-l16dwd_series_a
9 Rockwellautomation 1763-l16dwd_series_b
10 Rockwellautomation 1766-l32awa_series_a
11 Rockwellautomation 1766-l32awa_series_b
12 Rockwellautomation 1766-l32awaa_series_a
13 Rockwellautomation 1766-l32awaa_series_b
14 Rockwellautomation 1766-l32bwa_series_a
15 Rockwellautomation 1766-l32bwa_series_b
16 Rockwellautomation 1766-l32bwaa_series_a
17 Rockwellautomation 1766-l32bwaa_series_b
18 Rockwellautomation 1766-l32bxb_series_a
19 Rockwellautomation 1766-l32bxb_series_b
20 Rockwellautomation 1766-l32bxba_series_a
21 Rockwellautomation 1766-l32bxba_series_b
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-7902.

URL Resource
http://www.securitytracker.com/id/1038546 Third Party Advisory VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04 Patch Third Party Advisory US Government Resource
http://www.securitytracker.com/id/1038546 Third Party Advisory VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04 Patch Third Party Advisory US Government Resource

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-7902 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-7902 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1038546
    Added Reference https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CWE ICS-CERT CWE-323
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-310 CWE-330
  • Modified Analysis by [email protected]

    Apr. 18, 2019

    Action Type Old Value New Value
    Changed Reference Type http://www.securitytracker.com/id/1038546 No Types Assigned http://www.securitytracker.com/id/1038546 Third Party Advisory, VDB Entry
  • CVE Modified by [email protected]

    Jul. 08, 2017

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1038546 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jul. 06, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:N/A:N)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04 No Types Assigned https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04 Patch, Third Party Advisory, US Government Resource
    Added CWE CWE-310
    Added CPE Configuration AND OR *cpe:2.3:a:rockwellautomation:1763-l16awa_series_a:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1763-l16awa_series_b:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1763-l16bbb_series_a:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1763-l16bbb_series_b:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1763-l16bwa_series_a:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1763-l16bwa_series_b:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1763-l16dwd_series_a:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1763-l16dwd_series_b:16.000:*:*:*:*:*:*:* (and previous) OR cpe:2.3:h:rockwellautomation:ab_micrologix_controller:1100:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:rockwellautomation:1766-l32awa_series_a:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1766-l32awa_series_b:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1766-l32awaa_series_a:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1766-l32awaa_series_b:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1766-l32bwa_series_a:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1766-l32bwa_series_b:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1766-l32bwaa_series_a:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1766-l32bwaa_series_b:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1766-l32bxb_series_a:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1766-l32bxb_series_b:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1766-l32bxba_series_a:16.000:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:rockwellautomation:1766-l32bxba_series_b:16.000:*:*:*:*:*:*:* (and previous) OR cpe:2.3:h:rockwellautomation:ab_micrologix_controller:1400:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2017-7902 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2017-7902 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.12 }} 0.03%

score

0.45978

percentile

CVSS30 - Vulnerability Scoring System
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