Blaze@lemmy.zip to Linux@programming.dev · 4 days ago'Critical' vulnerability in OpenSSH uncovered, affects almost all Linux systemswww.computing.co.ukexternal-linkmessage-square35fedilinkarrow-up11arrow-down10
arrow-up11arrow-down1external-link'Critical' vulnerability in OpenSSH uncovered, affects almost all Linux systemswww.computing.co.ukBlaze@lemmy.zip to Linux@programming.dev · 4 days agomessage-square35fedilink
minus-squarelurklurk@lemmy.worldlinkfedilinkarrow-up0·3 days agothe in depth technical details TL;DR; sigalarm handler calls syslog which isn’t safe to call from a signal handler context. Their example exploit needed about 10k attempts to get a remote shell so it’s not fast or quiet, but a neat find regardless
minus-squarebitfucker@programming.devlinkfedilinkarrow-up0·3 days agoI can already imagine the log generated will be a hint. We usually automate those anyway as it is closer to (D)DoS too.
the in depth technical details
TL;DR; sigalarm handler calls syslog which isn’t safe to call from a signal handler context.
Their example exploit needed about 10k attempts to get a remote shell so it’s not fast or quiet, but a neat find regardless
I can already imagine the log generated will be a hint. We usually automate those anyway as it is closer to (D)DoS too.