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Security Leftovers

Submitted by Roy Schestowitz on Wednesday 28th of October 2020 09:24:45 PM Filed under
Security
  • Security updates for Wednesday [LWN.net]

    Security updates have been issued by Debian (blueman), Fedora (nodejs), Gentoo (firefox), openSUSE (kleopatra), Oracle (java-1.8.0-openjdk), SUSE (apache2, binutils, firefox, pacemaker, sane-backends, spice, spice-gtk, tomcat, virt-bootstrap, xen, and zeromq), and Ubuntu (ca-certificates, mariadb-10.1, mariadb-10.3, netty, openjdk-8, openjdk-lts, perl, and tomcat6).

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  • What would you risk for free Honey? | Almost Secure

    Honey is a popular browser extension built by the PayPal subsidiary Honey Science LLC. It promises nothing less than preventing you from wasting money on your online purchases. Whenever possible, it will automatically apply promo codes to your shopping cart, thus saving your money without you lifting a finger. And it even runs a reward program that will give you some money back! Sounds great, what’s the catch?

    With such offers, the price you pay is usually your privacy. With Honey, it’s also security. The browser extension is highly reliant on instructions it receives from its server. I found at least four ways for this server to run arbitrary code on any website you visit. So the extension can mutate into spyware or malware at any time, for all users or only for a subset of them – without leaving any traces of the attack like a malicious extension release.

    [...]

    In the end, I found that the Honey browser extension gives its server very far reaching privileges, but I did not find any evidence of these privileges being misused. So is it all fine and nothing to worry about? Unfortunately, it’s not that easy.

    While the browser extension’s codebase is massive and I certainly didn’t see all of it, it’s possible to make definitive statements about the extension’s behavior. Unfortunately, the same isn’t true for a web server that one can only observe from outside. The fact that I only saw non-malicious responses doesn’t mean that it will stay the same way in future or that other people will make the same experience.

    In fact, if the server were to invade users’ privacy or do something outright malicious, it would likely try to avoid detection. One common way is to only do it for accounts that accumulated a certain amount of history. As security researchers like me usually use fairly new accounts, they won’t notice anything. Also, the server might decide to limit such functionality to countries where litigation is less likely. So somebody like me living in Europe with its strict privacy laws won’t see anything, whereas US citizens would have all of their data extracted.

    But let’s say that we really trust Honey Science LLC given its great track record. We even trust PayPal who happened to acquire Honey this year. Maybe they really only want to do the right thing, by any means possible. Even then there are still at least two scenarios for you to worry about.

    The Honey server infrastructure makes an extremely lucrative target for hackers. Whoever manages to gain control of it will gain control of the browsing experience for all Honey users. They will be able to extract valuable data like credit card numbers, impersonate users (e.g. to commit ad fraud), take over users’ accounts (e.g. to demand ransom) and more. Now think again how much you trust Honey to keep hackers out.

    But even if Honey had perfect security, they are also a US-based company. And that means that at any time a three letter agency can ask them for access, and they will have to grant it. That agency might be interested in a particular user, and Honey provides the perfect infrastructure for a targeted attack. Or the agency might want data from all users, something that they are also known to do occasionally. Honey can deliver that as well.

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