blockoperation

5 ms·

1.
by blockoperation 9y ago
Just to add to that, it looks like some manufacturers have already pushed out the new microcode alongside the recent ME fixes. I flashed my Skylake laptop a few days ago, and now I'm on microcode rev 0xc2 (versus 0xba in the latest Int
2.
by blockoperation 9y ago
What bothers me is the lack of confirmation on the microcode updates (other than 'soon') – apparently they're out there[1], but Intel's own package has yet to be updated[2]. The 20171215 update carried by some distros on
3.
by blockoperation 9y ago
It appears to be available on a few other models as well (searching 'site:dell.com "ME inoperable"' brings up service tags for a few non-rugged Latitudes and a couple of Optiplexes), despite it not being an option on the
4.
by blockoperation 9y ago
Actually, Chromium (and uBO) has supported blocking WebSockets via webRequest for a while now[1], despite the desperate protests of a MindGeek employee[2]. [1] https://chromium.googlesource.com/chromium/src/+/
5.
by blockoperation 9y ago
If you're able to build Chromium yourself, here's a trivial patch which does just that (only tested on Linux): https://gist.github.com/blockoperation/5ec91d666e670e39584d2...
6.
by blockoperation 9y ago
Since we're talking about backdoors, how about compiler ones? With C, there are several routes to bootstrapping your compiler of choice – there are countless implementations that can be used as intermediates (both closed and open sourc
7.
by blockoperation 9y ago
It would be easy for them to fingerprint it and block it at a server level, given that it uses some hardcoded headers (which are probably sent in the wrong order versus the browser it's spoofing), doesn't fetch any of the images&#
8.
by blockoperation 9y ago
Whether it's a good addition to the language or not is debatable, but as a browser feature, it sounds terrifying. Browsers have a huge attack surface as it is (I mean, WebGL is a thing – exposing GPU drivers to random untrusted code on
9.
by blockoperation 9y ago
Writing performant code by using the correct idioms, data structures, algorithms, etc, from the start is just common sense rather than 'premature optimisation'. Writing unreadable, micro-optimised code in the name of performance w
10.
by blockoperation 9y ago
> Adolescents are horrible at consequence extrapolation: it's why they're famously risk hungry and blasé about doing stuff grownups would be terrified of. Why they never think they'll be the ones who die or get pregnant or
11.
by blockoperation 9y ago
Resources/frames/XHRs/etc from 'file://' might be blocked, but what about top-level redirects? At the very least, user-initiated top-level navigations should bypass any policies. If you're out to caus
12.
by blockoperation 9y ago
Samples are just instruments, and sequencers are just composition tools. It's the end result that matters.
13.
by blockoperation 9y ago
I'm surprised it took this long for her to bring up the subject – Theresa May would've had her soundbites prepared in advance and released within hours of the attack if she was still Home Sec. > That is my view - it is complete
14.
by blockoperation 10y ago
I'm still waiting for Chromium to add a per-site switch for WebGL (just like for JS, cookies, Flash, etc). Enabling WebGL globally seems like a disaster waiting to happen, even with sanitisation and sandboxing.
15.
by blockoperation 10y ago
Renoise is great, especially for breakbeat/jungle drum programming. Just load up your break of choice, put in some slice markers (or play it with offset commands like on old trackers), and you're set. I do find the pattern-based w
16.
by blockoperation 10y ago
I haven't tried an XPS, but the Precision 7xxx stuff definitely qualifies. My 7510 came with Ubuntu, and the experience was just as polished as any Windows machine (better in some ways, as they had configured their way around some Skyl
17.
by blockoperation 10y ago
sesearch is one way of doing it, for example: $ sesearch -A -s some_app_t -c file -p read -p write allow some_app_t some_type_t:file { read write }; allow some_app_t some_other_type_t:file { read write }; allow some_attribute_of_s
18.
by blockoperation 10y ago
I don't see why you should get to run random, unauditable code on my machine or decide for me how I consume your content.
19.
by blockoperation 10y ago
The Google Cloud status page had a message about some 'long-lived' OAuth tokens being invalidated on the same day that the mass logouts occurred. They took it down quite quickly, and it doesn't appear in the incident history.
20.
by blockoperation 10y ago
It's available on my laptop at least: $ egrep '^(model name|microcode)' /proc/cpuinfo | head -n2 model name : Intel(R) Core(TM) i7-6820HQ CPU @ 2.70GHz microcode : 0x9e $ egrep -o ' (hle|rtm) '
21.
by blockoperation 10y ago
Multiple accounts can be quite usable if you get the separation right. Separate uids for personal emails/banking and porn browsing should be a given, at least.
22.
by blockoperation 10y ago
I'm familiar with grsec (having an interest, albeit not as an expert, in some of the issues it addresses, and as a long-time Hardened Gentoo user), but that doesn't override my point that 'CONFIG_MODULES=n' seems neater
23.
by blockoperation 10y ago
I can see why it might be a burden when you're dealing with hundreds of servers, but on a personal machine, where the occasional disruption won't get you sacked, it's pretty straightforward (though I say this as someone who f
24.
by blockoperation 10y ago
...or just roll your own kernel with CONFIG_MODULES=n. If you only need a specific set of modules, you might as well just build them in and just forget LKMs altogether. It's not very convenient when you run into some obscure hardware&#
25.
by blockoperation 10y ago
It must be used with care though, otherwise you'll end up with so many holes in your policy that you defeat whole point of using SELinux in the first place. Definitely don't use the output directly.
26.
by blockoperation 10y ago
ECC could also help to raise the alarm when you're under attack – the chances of flipping enough bits to evade ECC (and have them be the right bits to pull off your exploit) without getting a few detectable flips in the process must be
27.
by blockoperation 10y ago
Some video streaming sites do the whole per-connection limiting thing, which is annoying when you want to download multiple things to watch later (especially really long playlists). Normally I'd say that accelerators are abusive, but b
28.
by blockoperation 10y ago
> Also where can I download the "public RAP demo"? I assume that's the version that comes with the PaX/grsec kernel patches, in which case it's this: https://github.com/minipli/linux-grsec&#x
29.
by blockoperation 10y ago
You've missed out another benefit (of Gentoo specifically): the ability to conveniently apply your own patches – just copy them to /etc/portage/patches/category/package-version and then re-emerge the offending
30.
by blockoperation 10y ago
I use parallel for pretty much all batching these days. It's useful even when you don't need parallelisation – here's a simple transcoding example: parallel -j1 'ffmpeg -i {2} -c:v libx264 -tune film -preset veryslow

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