@[email protected] to [email protected] • 5 months ago'Critical' vulnerability in OpenSSH uncovered, affects almost all Linux systemswww.computing.co.ukexternal-linkmessage-square39fedilinkarrow-up1244arrow-down13
arrow-up1241arrow-down1external-link'Critical' vulnerability in OpenSSH uncovered, affects almost all Linux systemswww.computing.co.uk@[email protected] to [email protected] • 5 months agomessage-square39fedilink
minus-square@lurklurklink28•5 months 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-square@[email protected]linkfedilink5•5 months 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.