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Linux KVM Instruction Emulation Issue

https://1.bp.blogspot.com/-HfAgGXf1DOw/WWlvbMysVAI/AAAAAAAAIPI/FubFag34U7YDsw4ZG5KiakYQR-P9HSuiwCLcBGAs/s1600/h72.png
KVM instruction emulation can run while KVM_VCPU_PREEMPTED is set, which can lead other vcpus to skip sending TLB flush IPIs. As a consequence, KVM instruction emulation can access memory through stale translations when the guest kernel thinks it has flushed all cached translations. This could potentially be used by unprivileged userspace inside a guest to compromise the guest kernel.

SHA-256 | 16fd49b64aee26c8f9a9ad6cb4265e74537f37bede65109a50798f82ac77833b

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Source:packetstormsecurity.com

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Abusing Open Redirects to get an Account Takeover

It was the end of another semester, and I was really bored, so decided to take a look at the system that my college uses to store and…Continue reading on Medium »
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hacking: security in practice
bruteforcing physical safe

hi there,

we have a heavy physical safe which we would like to open..

Unfortunately nobody knows the 6 digit key.

Are there any examples to brute force these kind of vaults?

for ex. Connect it to a pc and brute force it? I have wordlist with all the possible 6 digit combinations and would like to learn how to setup this on my own.

Doing it manually is not an option because after two attempts there will be a delay of 2 hours, pulling in and out the battery doesn't reset this unfortunately.

submitted by /u/smoke_2k
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