security

On Proxmox VE 5.1, inside an LXC container, I cannot ping with unprivileged user. It gives me the following error: $ ping google.ch ping: socket: Operation not permitted On the hostnode itself I can ping with both unprivileged user and root, but inside an LXC container only as root. The...

Hallo, eine Frage zu dem Thema "Unprivileged Container". Bei einem Unpriviligiertem Container werden ja die UID umgemappt, um die Sicherheit zu erhöhen. Damit ist wenn jemand aus dem Container ausbricht, er "nur" mit Nutzerrechten unterwegs. So weit so gut. Wenn ich aber nun mehrere Container...

Hi everybody, I'm trying to add two factor authentication for the proxmox login for extra security. I having hard time finding a tutorial and the documentation is not very clear. Anyone Can help me set it up ?

Hello I've seen some vulnerabilities in qemu-kvm, that were recently patched. For ex, CVE-2017-7980 In the redhat announcements, i saw they require a stop of all VMs for the update to take effect. Do we need to follow the same procedure when proxmox updates the qemu? Or it's patched in...

Today, I was editing a product in WHMCS, and by "mistake" I saved the order with the "Server:" selected as another node, that it should really be. What happened after was horrible, because the user opened his console, and the was connected to another VM on another NODE, seeing the whole...

Hello, I managed to correctly configure the firewall with Proxmox 4.4 and its integration with Suricata (using this wiki page : https://pve.proxmox.com/wiki/Firewall#_tips_and_tricks). I enabled the HTTP log in Suricata, but I only see inter-vm communications, and not the incoming requests...

Hallo zusammen, ich habe folgendes Problem: Ich nutze eine TFA mit OTPs sowohl in der Webgui als auch für SSH. Mir ist dann aufgefallen, dass der Zugriff auf die VM Console nicht mehr funktioniert, wenn diese auf einem anderen Server liegt. Heißt ich bin auf Server 1 angemeldet und möchte auf...

I've been playing with containers on my lab cluster, and I noticed that containers can see ALL storage attached to the host by simply checking lsblk, either with priviledged or unpriviledged containers. Is this the correct behavior? if so, how can I go about masking the host's storage from the...

Hello, i'm testing Suricata as IDS (not IPS).... i have installed all the stuff and i have configured a single VPS debian LXC with LAMP. How can i test if suricata works ? I have tested a query string on the VPS like this...

.no.help.here. (EDIT)

Can you give us a time frame when kernel 4.4.19-1-pve (latest available AFAIK) is going to be patched for CVE-2016-5195 / Dirty COW ?

I'm up and running with PVE v4.1, and I rather like it so far. However, I ran into a little security snag with LXC today, and that made med start to dig a bit more into LXC security, but first the problem that triggered it all. The problem is that you can view the complete output of the host...

Hello, i have several server violated, root escaletion. Some details: ---------------------------------------------------------------- root@prx:/home/enrico# lsof -p 361304 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME 503 361304 root cwd DIR 0,25 4096...

Sorry if this has been mentioned before but I can't initially find anything. Just got a warning from my ISP about this: The folks at shadowserver security group are reporting open portmapper hosts to us, these need to get fixed as they can be used in amplification denial of service attacks...