9.1
CRITICAL
CVE-2017-6026
Schneider Electric Modicon PLCs Session Prediction Vulnerability
Description

A Use of Insufficiently Random Values issue was discovered in Schneider Electric Modicon PLCs Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware versions prior to Version 4.0.5.11. The session numbers generated by the web application are lacking randomization and are shared between several users. This may allow a current session to be compromised.

INFO

Published Date :

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

Last Modified :

Feb. 2, 2022, 1:05 p.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

5.2

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2017-6026 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2017-6026 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 Schneider-electric modicon_m241_firmware
2 Schneider-electric modicon_m251_firmware
: Total Affected Vendor : 1 | Products : 2
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-2017-6026.

URL Resource
http://www.securityfocus.com/bid/97254 Third Party Advisory VDB Entry
https://ics-cert.us-cert.gov/advisories/ICSA-17-089-02 Third Party Advisory US Government Resource
https://www.exploit-db.com/exploits/45918/ Exploit Third Party Advisory VDB Entry

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).

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n0-traces/cve_monitor

Automatic monitor github cve using Github Actions

Python

Updated: 1 month, 3 weeks ago
1 stars 56 fork 56 watcher
Born at : April 7, 2021, 11:16 a.m. This repo has been linked 1007 different CVEs too.

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

The following list is the news that have been mention CVE-2017-6026 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-6026 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 [email protected]

    May. 14, 2024

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

    Feb. 02, 2022

    Action Type Old Value New Value
    Removed CVSS V3 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    Changed Reference Type https://www.exploit-db.com/exploits/45918/ No Types Assigned https://www.exploit-db.com/exploits/45918/ Exploit, Third Party Advisory, VDB Entry
    Changed CPE Configuration AND OR *cpe:2.3:o:se:modicon_m251_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0.3.20 OR cpe:2.3:h:schneider-electric:modicon_m251:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0.3.20 OR cpe:2.3:h:schneider-electric:modicon_m251:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR *cpe:2.3:o:se:modicon_m241_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0.3.20 OR cpe:2.3:h:schneider-electric:modicon_m241:-:*:*:*:*:*:*:* AND OR *cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:* versions up to (including) 4.0.3.20 OR cpe:2.3:h:schneider-electric:modicon_m241:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 31, 2022

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20 OR *cpe:2.3:o:se:modicon_m241_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
  • CPE Deprecation Remap by [email protected]

    Jan. 31, 2022

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20 OR *cpe:2.3:o:se:modicon_m251_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
  • CPE Deprecation Remap by [email protected]

    Jan. 31, 2022

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:se:modicon_m241_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20 OR *cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
  • CPE Deprecation Remap by [email protected]

    Jan. 31, 2022

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:se:modicon_m251_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20 OR *cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
  • CPE Deprecation Remap by [email protected]

    Jan. 31, 2022

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:se:modicon_m241:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m241:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Jan. 31, 2022

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:se:modicon_m251:-:*:*:*:*:*:*:* OR *cpe:2.3:h:schneider-electric:modicon_m251:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 26, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:modicon_m251:-:*:*:*:*:*:*:* OR *cpe:2.3:h:se:modicon_m251:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 26, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:h:schneider-electric:modicon_m241:-:*:*:*:*:*:*:* OR *cpe:2.3:h:se:modicon_m241:-:*:*:*:*:*:*:*
  • CPE Deprecation Remap by [email protected]

    Aug. 19, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:schneider-electric:modicon_m241_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20 OR *cpe:2.3:o:se:modicon_m241_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
  • CPE Deprecation Remap by [email protected]

    Aug. 19, 2021

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:schneider-electric:modicon_m251_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20 OR *cpe:2.3:o:se:modicon_m251_firmware:*:*:*:*:*:*:*:* versions from (including) 4.0.3.20
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CWE ICS-CERT CWE-330
  • CVE Modified by [email protected]

    Dec. 01, 2018

    Action Type Old Value New Value
    Added Reference https://www.exploit-db.com/exploits/45918/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Jul. 07, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:P/A:N)
    Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
    Changed Reference Type https://ics-cert.us-cert.gov/advisories/ICSA-17-089-02 No Types Assigned https://ics-cert.us-cert.gov/advisories/ICSA-17-089-02 Third Party Advisory, US Government Resource
    Changed Reference Type http://www.securityfocus.com/bid/97254 No Types Assigned http://www.securityfocus.com/bid/97254 Third Party Advisory, VDB Entry
    Added CWE CWE-330
    Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m251_firmware:4.0.3.20:*:*:*:*:*:*:* (and previous) OR cpe:2.3:h:schneider-electric:modicon_m251:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:schneider-electric:modicon_m241_firmware:4.0.3.20:*:*:*:*:*:*:* (and previous) OR cpe:2.3:h:schneider-electric:modicon_m241:-:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jul. 01, 2017

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/97254 [No Types Assigned]
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-2017-6026 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-2017-6026 weaknesses.

Exploit Prediction

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

2.82 }} 0.61%

score

0.90932

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: