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SIMATIC STEP 7 VER 3 SERIAL
SIMATIC STEP 7 VER 3 UPDATE
SIMATIC STEP 7 VER 3 SOFTWARE
SIMATIC STEP 7 VER 3 PC

SIMATIC STEP 7 VER 3 PC

Be aware that the PC Adapter draws its power to work from the connection port so check the power LED for proper operation. These cables can piggyback on existing connectors. Note that PROFIBUS is labeled as DP on the Siemens connection ports. The CP5512 card and the PC Adapter can communicate on either an MPI or PROFIBUS port.

SIMATIC STEP 7 VER 3 SERIAL

The PC Adapter using a serial or USB connection There are three major types of programming cables:Ģ. You can help by choosing one of the links below to provide feedback about this product.Connecting to the S7 PLC The Programming Cables This vulnerability is not exploitable remotely.įor any questions related to this report, please contact the CISA at:įor industrial control systems cybersecurity information: ĬISA continuously strives to improve its products and services. No known public exploits specifically target this vulnerability. Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.Īdditional mitigation guidance and recommended practices are publicly available on the ICS webpage on in the Technical Information Paper, ICS-TIP-12-146-01B-Targeted Cyber Intrusion Detection and Mitigation Strategies. Also recognize that VPN is only as secure as the connected devices.ĬISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.ĬISA also provides a section for control systems security recommended practices on the ICS webpage on. When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing that VPNs may have vulnerabilities and should be updated to the most current version available.

Locate control system networks and remote devices behind firewalls, and isolate them from the business network.

Minimize network exposure for all control system devices and/or systems, and ensure that they are not accessible from the Internet.

Please see Siemens Security Advisory ssa-641963 for more information.ĬISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. In order to operate the devices in a protected IT environment, Siemens recommends configuring the environment according to Siemens Operational Guidelines for Industrial Security and following the recommendations in the product manuals.Īdditional information on industrial security by Siemens can be found at:

Only use project files from trusted sourcesĪs a general security measure, Siemens strongly recommends protecting network access to devices with appropriate mechanisms.

Restrict access to project files on the engineering station to trusted users.Siemens has identified the following specific workarounds and mitigations customers can apply to reduce the risk:

SIMATIC STEP 7 VER 3 UPDATE

SINAMICS STARTER (containing STEP 7 OEM version): Update to v5.4 HF2 or later.SIMATIC STEP 7 V5.X: Update to v5.6 SP2 HF3 or later.SIMATIC PCS 7 v9.0: Update to v9.0 SP3 or later (To obtain SIMATIC PCS 7 v9.0 SP3 contact your local customer support).Siemens has released updates for the following products: Uri Katz from Claroty reported this vulnerability to Siemens. CRITICAL INFRASTRUCTURE SECTORS: Chemical, Critical Manufacturing, Energy, Food and Agriculture, Water and Wastewater Systems.A CVSS v3 base score of 7.8 has been calculated the CVSS vector string is ( AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

SIMATIC STEP 7 VER 3 SOFTWARE

The affected software contains a buffer overflow vulnerability while handling certain files that may allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution.ĬVE-2021-31893 has been assigned to this vulnerability.

SINAMICS STARTER (containing STEP 7 OEM version): All versions prior to v5.4 HF2ģ.2 VULNERABILITY OVERVIEW 3.2.1 BUFFER COPY WITHOUT CHECKING SIZE OF INPUT (‘CLASSIC BUFFER OVERFLOW') CWE-120.

SIMATIC STEP 7 v5.X: All versions prior to v5.6 SP2 HF3.

SIMATIC PDM: All versions prior to v9.2.

SIMATIC PCS 7 v9.0: All versions prior to 9.0 SP3.

SIMATIC PCS 7 v8.2 and earlier: All versions.

Siemens reports this vulnerability affects the following SIMATIC software products: Successful exploitation of this vulnerability could allow an attacker to manipulate project files, create a denial-of-service condition or remotely execute code.