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over a dozen flaws found in siemens' industrial network management

Over a Dozen Flaws Found in Siemens’ Industrial Network Management System

You are here: Home / General Cyber Security News / Over a Dozen Flaws Found in Siemens’ Industrial Network Management System
June 18, 2022

Cybersecurity researchers have disclosed details about 15 security flaws in Siemens SINEC network management system (NMS), some of which could be chained by an attacker to achieve remote code execution on affected systems.

“The vulnerabilities, if exploited, pose a number of risks to Siemens devices on the network including denial-of-service attacks, credential leaks, and remote code execution in certain circumstances,” industrial security company Claroty said in a new report.

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The shortcomings in question — tracked from CVE-2021-33722 through CVE-2021-33736 — were addressed by Siemens in version V1.0 SP2 Update 1 as part of updates shipped on October 12, 2021.

“The most severe could allow an authenticated remote attacker to execute arbitrary code on the system, with system privileges, under certain conditions,” Siemens noted in an advisory at the time.

Siemens vulnerabilities

Chief among the weaknesses is CVE-2021-33723 (CVSS score: 8.8), which allows for privilege escalation to an administrator account and could be combined with CVE-2021-33722 (CVSS score: 7.2), a path traversal flaw, to execute arbitrary code remotely.

Another notable flaw relates to a case of SQL injection (CVE-2021-33729, CVSS score: 8.8) that could be exploited by an authenticated attacker to execute arbitrary commands in the local database.

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“SINEC is in a powerful central position within the network topology because it requires access to the credentials, cryptographic keys, and other secrets granting it administrator access in order to manage devices in the network,” Claroty’s Noam Moshe said.

“From an attacker’s perspective carrying out a living-off-the-land type of attack where legitimate credentials and network tools are abused to carry out malicious activity, access to, and control of, SINEC puts an attacker in prime position for: reconnaissance, lateral movement, and privilege escalation.”

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Some parts of this article are sourced from:
thehackernews.com

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