Cyberis Blog
Reassuringly clear thinking.
- Penetration testing
- Tools and techniques
CUPS Security Flaws
On 23rd September 2024, a zero-day vulnerability was highlighted by security researcher Simone Margaritelli in the Linux CUPS printing system, which gained widespread attention due to the unofficial CVSS severity rating of 9.9 allocated to it. Following the ever-growing attention and comparisons to catastrophic global security incidents such as Heartbleed and Log4J, further details emerged on the vulnerability, and the overall risk was found to be lower than first expected. However, the impact of a successful exploit is still agreed to be significant.
- Cyber Essentials
Cyber Essentials Charity Month 2024
During Charity Awareness Month this year, IASME and participating partners are offering a reduction of £75 to all qualified participants. If assessed through Cyberis, qualified participants will also receive a discount towards Cyber Essentials Plus assessments. This will allow an organisation to gain further insight into their security posture and assess if they are correctly following IASME's pillars of security.
- News
CrowdStrike / Windows Outage
There are reports that an update to CrowdStrike Falcon Sensor, relating to a faulty channel file, on Windows machines caused these systems to crash with a BSOD and then enter a boot loop, preventing the systems from operating normally.
- Cyber Essentials
- Penetration testing
The Importance of The Cyber Essentials Scheme
The Cyber Essentials Scheme is a UK-based certification program that aims to help organisations improve their cybersecurity posture and protect themselves from common cyber threats. The scheme covers five core pillars of security: secure configuration, boundary firewalls, access controls, patch management, and malware protection. By implementing these controls, organisations can reduce the risk and impact of cyber attacks, which affect 32% of UK businesses and cost around £736 million in 2021. The scheme also offers benefits such as enhanced market reputation, lower cyber insurance premiums, and compliance with government contracts. The Cyber Essentials Scheme is therefore an essential certification for any organisation operating in the UK, regardless of size or sector.
- Penetration testing
- Tools and techniques
The Overlooked Control: Cache-Control in Mobile App Security
In the realm of mobile application development, attention often gravitates towards high-profile security vulnerabilities like SQL injection, business logic flaws, or weak access controls. However, one crucial aspect that often slips under the radar is the proper implementation of cache-control settings, especially when handling Network API requests. While seemingly innocuous, neglecting cache control can open a Pandora's box of security risks, a fact often overshadowed by more sensational security findings.
- Red teaming
"Assumed Compromise" Assessments: A Guide
In red teaming, defining the business objectives of the exercise early is essential to driving the best value realisation from the exercise. Each attack simulation involves a bespoke scoping exercise, and it is during these scoping processes that we discuss different ways of potentially achieving the desirable business objectives and the pros and cons of each.
- Penetration testing
- Red teaming
- Tools and techniques
Avoiding Microsoft OneNote attachments spreading malware on your network
OneNote is note-taking software, developed by Microsoft and is included in the default Office suite bundle. In recent years, OneNote files have become popular channels for attackers to distribute malware, given their common installation and Microsoft's organisational measures to block macros from running in Excel and Word.
- Red teaming
Informed consent: Social engineering and 'assumed compromise'
"Informed consent: Permission granted in full knowledge of the possible consequences" We're familiar with the concept of informed consent; in medicine, we treat it as criminal to perform a medical intervention without valid informed consent being in place. In red teaming, informed consent is just as important.
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