8.8
HIGH
CVE-2023-28829
Siemens SIMATIC Legacy OPC Services Authentication Bypass
Description

A vulnerability has been identified in SIMATIC NET PC Software V14 (All versions), SIMATIC NET PC Software V15 (All versions), SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions), SIMATIC PCS 7 V9.1 (All versions), SIMATIC WinCC (All versions < V8.0), SINAUT Software ST7sc (All versions). Before SIMATIC WinCC V8, legacy OPC services (OPC DA (Data Access), OPC HDA (Historical Data Access), and OPC AE (Alarms & Events)) were used per default. These services were designed on top of the Windows ActiveX and DCOM mechanisms and do not implement state-of-the-art security mechanisms for authentication and encryption of contents.

INFO

Published Date :

June 13, 2023, 9:15 a.m.

Last Modified :

July 5, 2023, 5:36 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2023-28829 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 simatic_wincc
2 Siemens wincc
3 Siemens simatic_pcs_7
4 Siemens simatic_net_pc_software
5 Siemens sinaut_st7sc
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-2023-28829.

URL Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-508677.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-2023-28829 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-28829 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]

    Jul. 05, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://cert-portal.siemens.com/productcert/pdf/ssa-508677.pdf No Types Assigned https://cert-portal.siemens.com/productcert/pdf/ssa-508677.pdf Patch, Vendor Advisory
    Added CWE NIST NVD-CWE-noinfo
    Added CPE Configuration OR *cpe:2.3:a:siemens:simatic_net_pc_software:14.0:*:*:*:*:*:*:* *cpe:2.3:a:siemens:simatic_net_pc_software:15.0:*:*:*:*:*:*:* *cpe:2.3:a:siemens:simatic_pcs_7:8.2:-:*:*:*:*:*:* *cpe:2.3:a:siemens:simatic_pcs_7:9.0:-:*:*:*:*:*:* *cpe:2.3:a:siemens:simatic_pcs_7:9.1:-:*:*:*:*:*:* *cpe:2.3:a:siemens:simatic_wincc:*:*:*:*:*:*:*:* versions up to (excluding) 8.0 *cpe:2.3:a:siemens:sinaut_st7sc:*:*:*:*:*:*:*:*
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-2023-28829 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-2023-28829 weaknesses.

Exploit Prediction

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

0.06 }} 0.01%

score

0.25419

percentile

CVSS31 - Vulnerability Scoring System
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