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NixOS Security Discussions

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Discussions around Security | Triaging happens in #security:nixos.org125 Servers

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7 Dec 2024
@hexa:lossy.networkhexaand the maintainer is mpagano18:52:13
@hexa:lossy.networkhexacurses18:52:15
@winter:catgirl.cloudWintersome from Intel, some from the guy18:52:22
8 Dec 2024
@aleksana:mozilla.orgaleksana (force me to bed after 18:00 UTC)
In reply to @joerg:thalheim.io
Is there some issue here, I don't see? https://github.com/NixOS/nixos-wiki-infra/issues/161
Should we explicitly tell users not to report vulnerabilities in the infrastructure publicly?
03:41:28
@tomodachi94:matrix.orgTomodachi94 (they/them)I think we already do through the issue templates. Third option down at https://github.com/NixOS/infra/issues/new/choose05:19:52
@tomodachi94:matrix.orgTomodachi94 (they/them) I think we already do through the issue templates. Third option down at https://github.com/NixOS/infra/issues/new/choose ignore me, this is for the wiki infra 05:20:22
@tomodachi94:matrix.orgTomodachi94 (they/them) I think we already do through the issue templates. Third option down at https://github.com/NixOS/infra/issues/new/choose ignore me, I missed that this is for the wiki infra 05:20:28
@tomodachi94:matrix.orgTomodachi94 (they/them)Probably would be good to copy that issue template to the wiki infra repo as well though05:22:03
@tgerbet:matrix.orgtgerbet It was leaked on his stream so the info was kinda public already in this case 09:34:42
@aidalgol:matrix.orgaidalgol I daresay that's much much less visible than the project's issue tracker. 09:38:27
@shadowrz:nixos.dev@shadowrz:nixos.dev
In reply to @aleksana:mozilla.org
Not dealing with package request is even better: https://github.com/NixOS/nixpkgs/issues/308154
I thought you wanted to close it immidieately
10:53:02
@shadowrz:nixos.dev@shadowrz:nixos.devAlso follow up: https://github.com/ultralytics/ultralytics/issues/18027#issuecomment-252546827610:53:10
@me:indeednotjames.comemily yaya and teutat3s, do you need help with electron? 18:14:24
@teutat3s:pub.solarteutat3s emily: I can get to a version bump later today or tomorrow. If you wanna help, feel free to create a PR 18:16:21
@yaya:uwu.isyaya
In reply to @me:indeednotjames.com
yaya and teutat3s, do you need help with electron?
i'm offline until mid-january
18:24:58
@me:indeednotjames.comemily
In reply to @teutat3s:pub.solar
emily: I can get to a version bump later today or tomorrow. If you wanna help, feel free to create a PR

think i would prefer if you could give it a shot first and review request me to get it reviewed and merged.

feel free to dm me on matrix if you need help :)

18:50:20
9 Dec 2024
@elvishjerricco:matrix.orgElvishJerricco

https://github.com/NixOS/nixpkgs/pull/350097

Does anyone have access to a number of other distros to check which of them disable %h/.ssh/authorized_keys? That seems unprecedented to me

00:07:35
@hexa:lossy.networkhexanot aware of any that does that00:09:07
@uep:matrix.orguepWe do this, in a corporate environment, to ensure that keys added on bastions are yubikey-resident, on our issued yubikeys, with a pin required.01:33:43
@uep:matrix.orguepIt seems ludicrous as a default01:34:03
@hexa:lossy.networkhexayeah, it is a hardening effort that should be opt-in01:35:15
@hexa:lossy.networkhexait would be unexpected to deviate from that default01:35:30
@uep:matrix.orguepand the original issue seems to be something about sudo not ssh; i'm sure there's some long argument in the middle that's been collapsed/hidden as to how breaking ssh helps that01:35:39
@elvishjerricco:matrix.orgElvishJerricco the problem wasn't even sudo; it was a PAM module that you have to opt-into. The PAM module basically says that wheel users can sudo without password as long as their ssh-agent says they've unlocked their SSH key. If you can just add keys in your home-dir, then that's effectively no auth 01:41:12
@elvishjerricco:matrix.orgElvishJerriccobut that's just a badly designed PAM module IMO01:41:29
@elvishjerricco:matrix.orgElvishJerriccoand it has been fixed01:41:31
@uep:matrix.orguepyeah, thanks; that's a nice concise description of what i had roughly surmised01:43:24
@uep:matrix.orguepi wonder what the fix is, since I can still run my own ssh agent that says whatever I want, even without writing keys in my homedir. For one, i could just forward an agent from elsehwe4re01:45:27
@uep:matrix.orguep * i wonder what the fix is, since I can still run my own ssh agent that says whatever I want, even without writing keys in my homedir. For one, i could just forward an agent from elsewhere01:45:35
@uep:matrix.orguepand regardless of that i don't see why breaking ssh is helpful01:46:47

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