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Showing posts with the label Hacking

Cognitive Hack - book review

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Title: Cognitive Hack - The New Battleground in Cybersecurity... The Human Mind Author: James Bone Part of the Internal Audit  and IT Audit series edited by Dan Swanson Publisher: CRC Press/Auerbach (2017) ISBN: 978-1-4987-4981-7 Price: US $100 ( hardback ) US $53 ( paperback ) GH rating: 50% Summary The author's core thesis is that we are expecting IT users and managers to make rational, risk-averse decisions and take appropriate actions in response to complex threats. The 'cognitive load' is such that people are bound to make mistakes. Therefore we  should be simplifying things ( e.g. by automating cybersecurity controls), thereby reducing the number of choices and hence taxing decisions we're asking people to make.

A nightmare on DR street

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A provocative piece on LinkeDin by Brian Matsinger caught my beady eye and sparked my fertile imagination today. I'm presently busy amplifying the disaster recovery advice in NIS 2 for a client. When I say 'amplifying', I mean generating an entire awareness and training piece on the back of a single mention of 'disaster recovery' in all of NIS 2. Just the one. Blink and you'll miss it. Oh boy. Anyway, Brian points out that recovering from disasters caused by 'cyber attacks' requires a different DR approach than is usual for physical disasters such as storms, fires and floods. Traditional basic DR plans are pretty straightforward: essentially, the plans tell us to grab recent backups and pristine systems, restore the backups onto said systems, do a cursory check then release services to users. Job's a good 'un, off to the pub lads.

Internet security guidance

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The second edition of ISO/IEC 27032 "Cybersecurity - Guidelines for Internet security" has just been published. The introduction to the new edition commences: "The focus of this document is to address Internet security issues and provide guidance for addressing  common Internet security threats, such as: — social engineering attacks; — zero-day attacks; — privacy attacks; — hacking; and — the proliferation of malicious software (malware), spyware and other potentially unwanted  software." Notice the standard is focused on " Internet security issues " which, in practice, means it covers active attacks perpetrated via the Internet. However:

Using ChatGPT more securely

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Clearly there are some substantial risks associated with using AI/ML systems and services, with some serious incidents having already hit the news headlines within a few months of the release of ChatGPT. However, having been thinking carefully and researching this topic for couple of weeks, I realised there are many more risks than the reported incidents might suggest, so  I've written up what I found. This pragmatic guideline explores the information risks associated with AI/ML,  from the perspective of an organisation whose workers are using ChatGPT (as an example) .   Having identified ~26 threats, ~6 vulnerabilities and dozens of possible impactful incident scenarios, I came up with ~20  information security controls capable of mitigating many of the risks. See what you make of it. Feedback welcome. What have I missed? What controls would you suggest? 

Information risks a-gurgling

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There are clearly substantial information risks associated with the redaction of sensitive elements from disclosed reports and other formats, risks that the controls don't necessarily fully mitigate. Yes, controls are fallible and constrained, leaving residual risks. This is hardly Earth-shattering news to any competent professional or enlightened infidel, and yet others are frequently shocked.  A new report* from a research team at the University of Illinois specifically concerns failures in the redaction processes and tools applied to  PDF documents . The physical size of redacted text denoted (covered or replaced) with a variable-length black rectangle may give clues as to the original content, while historically a disappointing number of redaction attempts have failed to prevent the original information being recovered simply by removing the cover images or selecting then pasting the underlying text. Doh!

Skyscraper of cards

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Having put it off for far too long, I'm belatedly trying to catch up with some standards work in the area of R oot o f T rust, which for me meant starting with the basics, studying simple introductory articles about RoT. As far as I can tell so far, RoT is a concept -  the logical basis, the foundation on which secure IT systems are built. 'Secure IT systems' covers a huge range. At the high end are those used for national security and defence purposes, plus safety- and business-critical systems facing enormous risks (substantial threats and impacts). At the low end are systems where the threats are mostly accidental and the impacts negligible - perhaps mildly annoying. Not being able to tell precisely how many steps you've taken today, or being unable to read this blog, is hardly going to stop the Earth spinning on its axis. In fact' mildly' may be overstating it. 'Systems' may be servers, desktops, portables and wearables, plus IoT things and all mann...

Responsible disclosure - another new policy

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We have just completed and released another topic-specific information security policy template, covering responsible disclosure (of vulnerabilities, mostly). The policy encourages people to report any vulnerabilities or other information security issues they discover with the organisation's IT systems, networks, processes and people. Management undertakes to investigate and address reports using a risk-based approach, reducing the time and effort required for spurious or trivial issues, while ensuring that more significant matters are prioritised. The policy distinguishes authorised from unauthorised security testing, and touches on ethical aspects such as hacking and premature disclosure. It allows for reports to be made or escalated to Internal Audit, acting as a trustworthy, independent function, competent to undertake investigations dispassionately. This is a relief-valve for potentially sensitive or troublesome reports where the reporter is dubious of receiving fair, prompt t...

AA privacy breach -- policy update?

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According to a Radio New Zealand news report today: "Hackers have taken names, addresses, contact details and expired credit card numbers from the AA Traveller website used between 2003 and 2018. AA travel and tourism general manager Greg Leighton said the data was taken in August last year and AA Traveller found out in March. He said a lot of the data was not needed anymore, so it should have been deleted, and the breach "could have been prevented"." The disclosure prompted the acting NZ Privacy Commissioner to opine that companies 'need a review policy': "Acting Privacy Commisioner Liz Macpherson told Midday Report that if data was not needed it should be deleted ... Companies needed a review policy in place to determine if the data stored was neccessary, or could be deleted, Macpherson said." So I've looked through our SecAware information security policies to see whether we have it covered already, and sure enough we do - well, sor...

Threat intelligence policy

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  I finally found the time today to complete and publish an information security policy template on threat intelligence.  The policy supports the new control in ISO/IEC 27002:2022 clause 5.7:  "Information relating to information security threats should be collected and analysed to produce threat intelligence." The SecAware policy template goes a little further: rather than merely collecting and analysing threat intelligence, the organisation should ideally respond to threats - for example, avoiding or mitigating them. That, in turn, emphasises the value of 'actionable intelligence', in the same way that 'actionable security metrics' are worth more than 'coffee table'/'nice to know' metrics that are of no practical use. The point is that information quality is more important that its volume . This is an information integrity issue, as much as information availability. The policy also mentions 'current and emerging threats'. This is a ve...

Professional services - operational phase

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Following-on from the preliminary phase I covered yesterday, the longest phase of most professional services engagements is the part where the services are delivered. With the contractual formalities out of the way, the supplier starts the service, providing consultancy support or specialist advice. The client receives and utilises the service. Both 'sides' are important to both parties, since a professional service that isn't delivered and used doesn't generate value for the client, and is unlikely to lead to repeat business - such as additonal assignments: Deliberately taking a simplistic view once again, I have represented 'assignments' (which may be projects, jobs, tasks or whatever) as discrete pieces of work, each with a beginning, middle and end:    Things are never so neat and tidy in practice. Some assignments may never really get off the ground, and some gradually diminish or peter out rather than coming to an abrupt end. On-again-off-again assignments...

Of APTs and RPTs

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Do you recall when APTs were A Thing? A dvanced P ersistent T hreats were exemplified by Stuxnet , a species of malware that was stealthy enough to penetrate the defences of an Iranian nuclear fuel processing plant ten years ago, persistent enough to undermine numerous layers of control, and sophisticated enough to over-speed and wreck the centrifuges without alerting the plant operators until the damage was done.   We seldom hear of weapons-grade APTs these days, suggesting they are no longer newsworthy or effective. Maybe they have gone the way of the trebuchet or musket ... but I believe it's much more likely that APTs have become even more sophisticated, stealthier and more damaging now than ever before, especially given the ascendance of IoT, IIoT and 'cyber-physical systems'. Now, Things are A Thing. Meanwhile, we are frequently  constantly assaulted by ordinary, conventional, old-school malware - R etarded P ersistent T hreats as it were. In contrast to APTs, RPTs ...

Adjusting to the new normal

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According to alert AA20-133A from US-CERT : "The U.S. Government has reported that the following vulnerabilities are being routinely exploited by sophisticated foreign cyber actors in 2020: Malicious cyber actors are increasingly targeting unpatched Virtual Private Network vulnerabilities. An arbitrary code execution vulnerability in Citrix VPN appliances, known as CVE-2019-19781, has been detected in exploits in the wild. An arbitrary file reading vulnerability in Pulse Secure VPN servers, known as CVE-2019-11510, continues to be an attractive target for malicious actors. March 2020 brought an abrupt shift to work-from-home that necessitated, for many organizations, rapid deployment of cloud collaboration services, such as Microsoft Office 365 (O365). Malicious cyber actors are targeting organizations whose hasty deployment of Microsoft O365 may have led to oversights in security configurations and vulnerable to attack. ...

SIM swap fraud

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I've heard rumours about the possibility of SIM-swap "identity theft" (fraud) but wasn't aware of the details ... until reading a couple of recent articles pointing to an academic paper from a team at Princeton University . The fraud involves socially-engineering the cellphone companies into migrating a victim's cellphone number onto a new SIM card, one in the fraudster's possession. That gives the fraudster control of a factor used in several multifactor authentication schemes ... and in some cases, that's enough to take full control ( e.g. resetting the victim's password - another factor). Otherwise, it might take them a bit more effort to guess, steal or brute-force the victim's password or PIN code first.  Authentication is usually a key control, yet authentication schemes often turn out to have vulnerabilities due to: Fundamental design flaws ( e.g. saving passwords unencrypted or weakly encrypted)  Bugs in the software and firmware ( e.g.  ...

Woe betide ...

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.... any organization unfortunate enough to suffer a privacy breach today, of all days, being "Data Privacy Day".  In the unlikely event that there are no new ones today, recent newsworthy breaches are liable to be trawled up and paraded across the media , again.  I've been writing about preparing to deal with malware incidents all this month. Managing or controlling the publicity aspects is trickier than it may appear. Sony pulled a master stroke in getting its legal team to threaten action against journalists who continued to exploit the tittle-tattle disclosed in the Sony Pictures Entertainment breach five years ago - but that's not a universally applicable approach. Travelex did well to get basic, static web pages published quickly, plus a talking-heads video explanation/apology by the CEO ... but ask their retail customers whether they feel 'informed', while the promised restoration of services is patently taking longer than anyone (except perhaps the cy...

Travelex vs Sony shootout

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The Travelex ransomware case study is coming along nicely. Over the dull grey NZ weekend, I prepared a timeline of the ongoing incident to compare and contrast against the Sony Pictures Entertainment ransomware incident at the end of 2014.  Already, Travelex is well ahead on points, restoring UK customer services within 3 weeks of the attack with more on the way. The incident timeline is substantially compressed relative to Sony's: they are getting through whatever needs to be done more quickly. Travelex has done well to keep its retail customers updated throughout, from the initial rapid disclosure on Twitter through to brief informational pages on the web, an FAQ , plus a statement and talking-head videoblog by its CEO on Friday just gone. Full marks from me! As far as I'm concerned, Travelex has managed the disclosures and public comms well, releasing professionally-crafted, informative briefings about the evolving situation, reassuring customers and not trying to cover th...