Categories
CERT Pet Peeves

NIS2 in Austria

We still don’t have a NIS2 law in Austria. We’re now more than a year late. As I just saw Süleyman’s post on LinkedIn I finally did the quick photoshop job I planned to do for a long time.

Original:

See https://en.wikipedia.org/wiki/Joel_Pett

NIS2 Version:

(Yes, this is a gross oversimplification. For the public administration side, we really need the NIS2 law, but for private companies who will be forced to conform to security standards: what’s holding you back from implementing them right now?)

Categories
CERT Internet Pet Peeves

Roles in Cybersecurity: CSIRTs / LE / others

(Crossposted from the CERT.at blog)

Back in January 2024, I was asked by the Belgian EU Presidency to moderate a panel during their high-level conference on cyber security in Brussels. The topic was the relationship between cyber security and law enforcement: how do CSIRTs and the police / public prosecutors cooperate, what works here and where are the fault lines in this collaboration. As the moderator, I wasn’t in the position to really present my own view on some of the issues, so I’m using this blogpost to document my thinking regarding the CSIRT/LE division of labour. From that starting point, this text kind of turned into a rant on what’s wrong with IT Security.

When I got the assignment, I recalled a report I had read years ago: “Measuring the Cost of Cybercrime” by Ross Anderson et al from 2012. In it, the authors try to estimate the effects of criminal actors on the whole economy: what are the direct losses and what are costs of the defensive measures put in place to defend against the threat. The numbers were huge back then, and as various speakers during the conference mentioned: the numbers have kept rising and rising and the figures for 2024 have reached obscene levels. Anderson et al write in their conclusions: “The straightforward conclusion to draw on the basis of the comparative figures collected in this study is that we should perhaps spend less in anticipation of computer crime (on antivirus, firewalls etc.) but we should certainly spend an awful lot more on catching and punishing the perpetrators.”

Over the last years, the EU has proposed and enacted a number of legal acts that focus on the prevention, detection, and response to cybersecurity threats. Following the original NIS directive from 2016, we are now in the process of transposing and thus implementing the NIS 2 directive with its expanded scope and security requirements. This imposes a significant burden on huge numbers of “essential” and “important entities” which have to heavily invest in their cybersecurity defences. I failed to find a figure in Euros for this, only the estimate of the EU Commission that entities new to the NIS game will have to increase their IT security budget by 22 percent, whereas the NIS1 “operators of essential services” will have to add 12 percent on their current spending levels. And this isn’t simply CAPEX, there is a huge impact on the operational expenses, including manpower and effects on the flexibility of the entity.

This all adds up to a huge cost for companies and other organisations.

What is happening here? We would never ever tolerate that kind of security environment in the physical world, so why do we allow it to happen online?

Categories
CERT Pet Peeves

On Cybersecurity Alert Levels

Last week I was invited to provide some input to a tabletop exercise for city-level crisis managers on cyber security risks and the role of CSIRTs. The organizers brought a color-coded threat-level sheet (based on the CISA Alert Levels) to the discussion and asked whether we also do color-coded alerts in Austria and what I think of these systems.

My answer was negative on both questions, and I think it might be useful if I explain my rationale here. The first was rather obvious and easy to explain, the second one needed a bit of thinking to be sure why my initial intuition to the document was so negative.

Escalation Ratchet

The first problem with color-coded threat levels is their tendency to be a one-way escalation ratchet: easy to escalate, but hard to de-escalate. I’ve been hit by that mechanism before during a real-world incident and that led me to be wary of that effect. Basically, the person who raises the alert takes very little risk: if something bad happens, she did the right thing, and if the danger doesn’t materialize, then “better safe than sorry” is proclaimed, and everyone is happy, nevertheless. In other words, raising the threat level is a safe decision.


On the other hand, lowering the threat level is an inherently risky decision: If nothing bad happens afterwards, there might be some “thank you” notes, but if the threat materializes, then the blame falls squarely on the shoulders of the person who gave the signal that the danger was over. Thus, in a CYA-dominated environment like public service, it is not a good career move to greenlight a de-escalation.


We’ve seen this process play out in the non-cyber world over the last years, examples include

  • Terror threat level after 9/11
  • Border controls in the Schengen zone after the migration wave of 2015
  • Coming down from the pandemic emergency

That’s why I’ve been always pushing for clear de-escalation rules to be in place whenever we do raise the alarm level.

Cost of escalation

For threat levels to make sense, any level above “green” need to have a clear indication what the recipient of the warnings should be doing at this threat level. In the example I saw, there was a lot of “Identify and patch vulnerable systems”. Well, Doh! This is what you should be doing at level green, too.


Thus, relevant guidance at higher level needs to be more than “protect your systems and prepare for attacks”. That’s a standing order for anyone doing IT operation, this is useless advice as escalation. What people need to know is what costs they should be willing to pay for a better preparation against incidents.


This could be a simple thing like “We expect a patch for a relevant system to be released out of our office-hours, we need to have a team on standby to react as quickly as possible, and we’ve willing to pay for the overtime work to have the patch deployed ASAP.”. Or the advice could be “You need to patch this outside your regular patching cadence, plan for a business disruption and/or night shifts for the IT people.” At the extreme end, it might even be “we’re taking service X out of production, the changes to the risk equation mean that its benefits can’t justify the increased risks anymore.”.


To summarize: if there were no hard costs to a preventative security measure, then you should have implemented them a long time ago, regardless of any threat level board.

Counterpoint

There is definitely value in categorizing a specific incident or vulnerability in some sort of threat level scheme: A particularly bad patch day, or some out-of-band patch release by an important vendor certainly is a good reason that the response to the threat should also be more than business-as-usual.


But a generic threat level increase without concrete vulnerabilities listed or TTPs to guard against? That’s just a fancy way of saying “be afraid” and there is little benefit in that.

Postscript: Just after posting this article, I stumbled on a fediverse post making almost the same argument, just with April 1st vs. the everyday flood of misinformation.

Categories
Internet Pet Peeves

Kafka wohnt in der Lassalle 9

Ich bin wohl nicht der einzige technikaffine Sohn / Schwiegersohn / Neffe, der sich um die Kommunikationstechnik der älteren Generation kümmern muss. In dieser Rolle habe ich gerade was hinreichend Absurdes erlebt.

Angefangen hat es damit, dass A1 angekündigt hat, den Telefonanschluss einer 82-jährigen Dame auf VoIP umstellen zu wollen. Das seit ewigen Zeiten dort laufende “A1 Kombi” Produkt (POTS + ADSL) wird aufgelassen, wir müssen umstellen. Ok, das kam jetzt nicht so wirklich überraschend, in ganz Europa wird das klassische Analogtelefon Schritt für Schritt abgedreht, um endlich die alte Technik loszuwerden.

Also darf ich bei A1 anrufen, und weil die Dame doch etwas an ihrer alten Telefonnummer hängt, wird ein Umstieg auf das kleinste Paket, das auch Telefonie beinhaltet, ausgemacht. Also “A1 Internet 30”. 30/5 Mbit/s klingt ja ganz nett am Telefon, also bestellen wir den Umstieg (CO13906621) am 18.11.2023. Liest man aber die Vertragszusammenfassung, die man per Mail bekommt, so schaut das so aus:

Da die Performance der alten ADSL Leitung auch eher durchwachsen und instabil war (ja, die TASL ist lang), erwarte ich eher den minimalen Wert, was einen Faktor 2 bzw. 5 weniger ist als beworben. Das Gefühl, hier über den Tisch gezogen worden zu sein, führt zu dem Gespräch: “Brauchst du wirklich die alte Nummer? Die meisten der Bekannten im Dorf sind doch schon nur mehr per Handy erreichbar.”

Ok, dann lassen wir die Bedingung “Telefon mit alter Nummer” sausen und nehmen das Rücktrittsrecht laut Fern- und Auswärtsgeschäfte-Gesetz in Anspruch und schauen uns nach etwas Sinnvollerem um. An sich klingt das “A1 Basis Internet 10” für den Bedarf hier angebracht, aber wenn man hier in die Leistungsbeschreibungen schaut, dann werden hier nur “0,25/0,06 Mbit/s” also 256 kbit/s down und 64 kbit/s up wirklich zugesagt. Meh. So wird das nichts, daher haben wir den Umstieg storniert und den alten Vertrag zum Jahresende gekündigt &emdash; was auch der angekündigte POTS-Einstellungstermin ist.

Der Rücktritt und die Kündigung wurden telefonisch angenommen und auch per Mail bestätigt.

So weit, so gut, inzwischen hängt dort ein 4g Modem mit Daten-Flatrate und VoIP-Telefon, was im Großen und Ganzen gut funktioniert.

Die nächste Aktion von A1 hatte ich aber nicht erwartet: In der Schlussabrechnung nach der Kündigung von Mitte Jänner war folgender Posten drinnen:

"Restgeld für vorzeittige Vertragsauflösung: 381 €

Und da 82-jährige manchmal nicht die besten E-Mail Leserinnen sind, ist das erst aufgefallen, als die Rechnung wirklich vom Konto eingezogen wurde.

Das “Restentgelt” macht in mehrerer Hinsicht keinen Sinn: der “A1 Kombi” Vertrag läuft seit mehr als 10 Jahren, und ich hatte bei der initialen Bestellung auch gefragt, ob irgendwelche Vertragsbindungen aktiv sind. Und das Ganze hat überhaupt erst angefangen, weil A1 die “A1 Kombi” einstellt, aber jetzt wollen sie uns genau dieses aufgelassene Produkt bis Ende 2025 weiterverrechnen.

Also ruf ich bei der A1 Hotline an, in der Annahme, dass man dieses Missverständnis schnell aufklären kann, wahrscheinlich hat einfach das Storno des Umstiegs den Startzeitpunkt des Vertrags im System neu gesetzt. So kann man sich täuschen:

  • Per Telefon geht bei ex-Kunden rein gar nichts mehr. Der Typ an der Hotline hat komplett verweigert, sich die Rechnung auch nur anzusehen.
  • Man muss den Rechnungseinspruch schriftlich einbringen. Auf die Frage nach der richtigen E-Mail-Adresse dafür war die Antwort “Das geht nur über den Chatbot.”
  • Also sagte ich der “Kara” so lange, dass mir ihre Antworten nicht weiterhelfen, bis ich einen Menschen dranbekomme, dem ich dann per Upload den schriftlichen Einspruch übermittle.
  • Nach Rückfrage bei der RTR-Schlichtungsstelle haben wir den Einspruch auch noch schriftlich per Einschreiben geschickt.

Wir haben hier ein Problem.

Ein Konzern zieht einer Pensionistin 400+ EUR vom Konto ein, weil sie einen Fehler in ihrer Verrechnung haben, und verweigern am Telefon komplett, sich das auch nur anzusehen. Laut RTR haben sie 4 Wochen Zeit, auf die schriftliche Beschwerde zu reagieren.

Ja, wir könnten bei der Bank den Einzug Rückabwickeln lassen, aber da ist dann A1 (laut Bank) schnell beim KSV und die Scherereien wollen wir auch nicht. Sammelklagen gibt es in Österreich nicht wirklich. Ratet mal, wer da dagegen Lobbying macht. Schadenersatz für solche Fehler? Fehlanzeige.

So sehr das US Recht oft idiotisch ist, die Drohung von hohen “punitive damages” geht mir wirklich ab. Wo ist die Feedbackschleife, dass die großen Firmen nicht komplett zur Service-Wüste werden?

Wenn ich aus Versehen bei einer Garderobe den falschen Mantel mitnehme, und dem echten Eigentümer, der mich darauf anspricht nur ein “red mit meinem chatbot oder schick mir einen Brief, in 4 Wochen kriegst du einen Antwort” entgegne, dann werde ich ein Problem mit dem Strafrecht bekommen.

Wie lösen wir sowas in Österreich? Man spielt das über sein Netzwerk. Mal sehen, wie lange es nach diesem Blogpost (plus Verteilung des Links an die richtigen Leute) braucht, bis jemand an der richtigen Stelle sagt “das kann’s echt nicht sein, liebe Kollegen, fixt das jetzt.”.

Update 2024-02-09: Eine kleine Eskalation über den A1 Pressesprecher hat geholfen. Die 1000+ Kontakte auf LinkedIn sind dann doch zu was gut.

Update 2024-04-05: Schau ich doch mal kurz auf die A1 Homepage, und was seh ich?

Gerichtsbeschluss

Anscheinend war des dem VKI auch zu bunt, wie unseriös die A1 mit Bandbreiten geworben hat.

Categories
Pet Peeves Windows 10

Win10: controlled folder access

I’ve enabled controlled folder access on my work Windows 10 machine.  Now it is giving me notifications like:

win10-ransomare

The idea is fine, of course I need to finetune the settings (and one click brings to the relevant settings page), but how the §$%& should I know which program to white-list? I cannot find a way to get the full path of the offending program.

I need to search.

Why is there no “Application ‘full path’ is trying to make changes: whitelist y/n” dialogue?

Categories
Pet Peeves Windows 10

Windows 10 peeves

I’m not a computer newbie. Neither am I a first-time Windows user.

Windows 10 has proved to be a very mixed bag for me. Some things are very clever and nicely done, and then there are a bunch of “what the f*ck were they thinking” moments for me.

I’ve now added the category “Windows 10” to this blog to keep track of my peeves and my workarounds.

 

Categories
CERT Internet Pet Peeves

Of Ads and Signatures

Both advertisements and signatures have been with us in the analogue realm for ages, the society has learned about their usefulness and limits. We have learned that it’s (usually) hard to judge the impact of a single ad, and that the process of actually validating a contested signature is not trivial. There is a good reason why the law requires more than a single signature to authorize the transfer of real estate.

Both concepts have been translated to the digital, online world.

And in both cases, there were promises that the new, digital and online versions of ads/signatures can deliver features that their old, analogue counterparts could not do.

For ads, it was the promise of real-time tracking of their effectiveness. You could do “clickthrough rates” measuring how often the ad was clicked by a viewer. The holy grail of ad effectivity tracking is the fabled “conversion rate”: you can measure how many people actually bought your product after clicking an ad.

For signatures, it was the promise of automated validation. If you get a digitally signed document, you should be able to actually verify (and can have 100% trust in the result) whether it was really signed by the signatory. Remember: in the analogue world, almost nobody actually does this. The lay person can detect crude forgeries, but even that only if the recipient has access to samples of authentic signatures. In reality, a closer inspection of handwritten signatures is only done for important transactions, or in the case of a dispute.

So how did things work out after a few years of experience with digital ads and signatures?

Categories
CERT Pet Peeves

The Edge browser

Wasn’t one of the main goals of junking the Internet Explorer codebase and building a brand new browser “Edge” the hope that there won’t be the monthly batch of patches for remote code execution vulnerabilities?

I haven’t tabulated the advisories but somehow I don’t have the feeling that things have gotten substantially better.

Why?

It looks to me like we still aren’t using the right programming environments for such complex pieces of software. There is still way too much basic security tooling the programmers have to do by themselves. Just like you shouldn’t do string operations in pure ANSI C, we need to rise the level of abstractions that all these browser bugs (that lead to RCE) just are not possible any more.

Categories
Pet Peeves

StartSSL, S/MIME and Thunderbird

This cost me an hour or two:

If you try to get a free S/MIME certificate from StartCom / StartSSL, this worked fine and in Firefox the certificate was shown as valid. But once I transferred it to Thunderbird, I got an unspecified certificate error.

Solution: Turn off OCSP.

Categories
Pet Peeves

Positive Surprise …

Wow, they put up new ticket vending machines at Brussels Central train station.

So instead of accepting only the Belgian-only cards, they finally work with international cards (Maestro, master/Visa), too.

Progress indeed. Welcome to 2014.