OSV-2021-1370 Heap-buffer-overflow in OT::MathGlyphConstruction::subset

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=39211 Crash type: Heap-buffer-overflow READ 2 Crash state: OT::MathGlyphConstruction::subset OT::MathVariants::subset OT::MATH::subset...

CISA Adds Single-Factor Authentication to the List of Bad Practices

The U.S. Cybersecurity and Infrastructure Security Agency CISA on Monday added single-factor authentication to the short list of "exceptionally risky" cybersecurity practices that could expose critical infrastructure as well as government and the private sector entities to devastating cyberattack...

How to proactively defend against Mozi IoT botnet

Mozi is a peer-to-peer P2P botnet that uses a BitTorrent-like network to infect IoT devices such as network gateways and digital video records DVRs. It works by exploiting weak telnet passwords1 and nearly a dozen unpatched IoT vulnerabilities2 and it’s been used to conduct distributed...

Unpatched Security Flaws Expose Mitsubishi Safety PLCs to Remote Attacks

Multiple unpatched security vulnerabilities have been disclosed in Mitsubishi safety programmable logic controllers PLCs that could be exploited by an adversary to acquire legitimate user names registered in the module via a brute-force attack, unauthorizedly login to the CPU module, and even cau...

OSV-2021-1099 Stack-buffer-overflow in ot::StringFind

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=36830 Crash type: Stack-buffer-overflow READ 1 Crash state: ot::StringFind ot::Coap::Message::AppendUriPathOptions otCoapMessageAppendUriPathOptions...

Critical Flaws Affect Embedded TCP/IP Stack Widely Used in Industrial Control Devices

Cybersecurity researchers on Wednesday disclosed 14 vulnerabilities affecting a commonly-used TCP/IP stack used in millions of Operational Technology OT devices manufactured by no fewer than 200 vendors and deployed in manufacturing plants, power generation, water treatment, and critical...

My thoughts on the “2021 Gartner Market Guide for Vulnerability Assessment”. What about the quality?

The Gartner Vulnerability Management Reports are one of the few marketing reports that I try to read regularly. This started back in the days when I was working for a VM vendor doing competitive analysis. Gartner is one of the few organizations that think about Vulnerability Assessment and...

Industrial Networks Exposed Through Cloud OT

The benefits of using a cloud-based management platform to monitor and configure industrial control systems ICS devices are obvious — efficiency, cost-savings and better diagnostics just for starters. But new research found critical vulnerabilities in these platforms that could be used to paralyz...

Several New Critical Flaws Affect CODESYS Industrial Automation Software

Cybersecurity researchers on Wednesday disclosed multiple security vulnerabilities impacting CODESYS automation software and the WAGO programmable logic controller PLC platform that could be remotely exploited to take control of a company's cloud operational technology OT infrastructure. The flaw...

Arbitrary Code Execution

harfbuzz is vulnerable to arbitrary code execution. A buffer over-read resulting from an inverted length check in hb-ot-font.cc allows an attacker to crash the application and potentially obtain arbitrary code execution...

OSV-2021-909 Heap-buffer-overflow in OT::CPALV1Tail::serialize

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=35672 Crash type: Heap-buffer-overflow READ 2 Crash state: OT::CPALV1Tail::serialize OT::CPAL::subset bool trysubset...

CISA’s CSET Tool Sets Sights on Ransomware Threat

CISA has released a new module in its Cyber Security Evaluation Tool CSET: the Ransomware Readiness Assessment RRA. CSET is a desktop software tool that guides network defenders through a step-by-step process to evaluate their cybersecurity practices on their networks. CSET—applicable to both...

CISA Addresses the Rise in Ransomware Targeting Operational Technology Assets

CISA has published the Rising Ransomware Threat to OT Assets fact sheet in response to the recent increase in ransomware attacks targeting operational technology OT assets and control systems. The guidance: provides steps to prepare for, mitigate against, and respond to attacks; details how the...

Understanding the threat landscape and risks of OT environments

The security community is continuously changing, growing, and learning from each other to better position the world against cyber threats. In the latest Voice of the Community blog series post, Microsoft Product Marketing Manager Natalia Godyla talks with Chris Sistrunk, Technical Manager in...

Understanding the threat landscape and risks of OT environments

The security community is continuously changing, growing, and learning from each other to better position the world against cyber threats. In the latest Voice of the Community blog series post, Microsoft Product Marketing Manager Natalia Godyla talks with Chris Sistrunk, Technical Manager in...

Crimes of Opportunity: Increasing Frequency of Low Sophistication Operational Technology Compromises

Attacks on control processes supported by operational technology OT are often perceived as necessarily complex. This is because disrupting or modifying a control process to cause a predictable effect is often quite difficult and can require a lot of time and resources. However, Mandiant Threat...

Mitigate OT security threats with these best practices

The security community is continuously changing, growing, and learning from each other to better position the world against cyber threats. In the latest Voice of the Community blog series post, Microsoft Product Marketing Manager Natalia Godyla talks with Chris Sistrunk, Technical Manager in...

Mitigate OT security threats with these best practices

The security community is continuously changing, growing, and learning from each other to better position the world against cyber threats. In the latest Voice of the Community blog series post, Microsoft Product Marketing Manager Natalia Godyla talks with Chris Sistrunk, Technical Manager in...

Microsoft Finds 'BadAlloc' Flaws Affecting Wide-Range of IoT and OT Devices

Microsoft researchers on Thursday disclosed two dozen vulnerabilities affecting a wide range of Internet of Things IoT and Operational Technology OT devices used in industrial, medical, and enterprise networks that could be abused by adversaries to execute arbitrary code and even cause critical...

“BadAlloc” – Memory allocation vulnerabilities could affect wide range of IoT and OT devices in industrial, medical, and enterprise networks

Microsoft’s Section 52, the Azure Defender for IoT security research group, recently uncovered a series of critical memory allocation vulnerabilities in IoT and OT devices that adversaries could exploit to bypass security controls in order to execute malicious code or cause a system crash. These...