10.0
CRITICAL
CVE-2021-31891
Siemens Desigo CC Command Injection Vulnerability
Description

A vulnerability has been identified in Desigo CC (All versions with OIS Extension Module), GMA-Manager (All versions with OIS running on Debian 9 or earlier), Operation Scheduler (All versions with OIS running on Debian 9 or earlier), Siveillance Control (All versions with OIS running on Debian 9 or earlier), Siveillance Control Pro (All versions). The affected application incorrectly neutralizes special elements in a specific HTTP GET request which could lead to command injection. An unauthenticated remote attacker could exploit this vulnerability to execute arbitrary code on the system with root privileges.

INFO

Published Date :

Sept. 14, 2021, 11:15 a.m.

Last Modified :

Sept. 28, 2021, 4:48 p.m.

Remotely Exploitable :

Yes !

Impact Score :

6.0

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2021-31891 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 Siemens desigo_cc
2 Siemens siveillance_control_pro
3 Siemens gma-manager
4 Siemens operation_scheduler
5 Siemens siveillance_control
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-2021-31891.

URL Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-535380.pdf Patch Vendor Advisory

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-2021-31891 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-31891 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
  • Initial Analysis by [email protected]

    Sep. 28, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-535380.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-535380.pdf Patch, Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:a:siemens:desigo_cc:*:*:*:*:*:*:*:* *cpe:2.3:a:siemens:siveillance_control_pro:*:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:a:siemens:gma-manager:*:*:*:*:*:*:*:* *cpe:2.3:a:siemens:operation_scheduler:*:*:*:*:*:*:*:* *cpe:2.3:a:siemens:siveillance_control:*:*:*:*:*:*:*:* OR cpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:* versions up to (including) 9.0
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-2021-31891 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

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

0.35 }} 0.02%

score

0.72245

percentile

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