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211 Posts
security engineer, got that one shell that one time. he/him.
bloghttps://joev.dev
githubhttps://github.com/j0ev
Hirō Isono

🚨 x/crypto/ssh: misuse of ServerConfig.PublicKeyCallback may cause authorization bypass

Common API misuse allows attacker to log in with one key, but appear to have logged in with another. Potentially affects services that look up users by key.

Partially mitigated in golang.org/x/[email protected].

https://groups.google.com/g/golang-announce/c/-nPEi39gI4Q

[security] Vulnerability in golang.org/x/crypto

Since Apple won’t include stickers anymore with their iPhones, old stickers are like bitcoin, a finite resource that we can use as a store of value and currency.

Someone set up a proper trading market place for StickerCoin.

just heard my local bakery's industrial oven runs Windows with a #Crowdstrike #Falcon monitor, and they've been unable to get the oven to turn off since this morning.
o_o
Entire IT Security team watching Desktop Support fix the #CrowdStrike problem.
Alexandre Villares

netstat when there's no netstat or ss

S=(- ESTABLISHED SYN_SENT SYN_RECV FIN_WAIT1 FIN_WAIT2 TIME_WAIT CLOSE CLOSE_WAIT LAST_ACK LISTEN CLOSING);hex2ipport(){ printf '%d.%d.%d.%d:%d\n' $(echo $1|awk -F: '{print $1}'|sed 's/../0x& /g'|awk '{print $4" "$3" "$2" "$1}') 0x$(echo $1|awk -F: '{print $2}');};cat /proc/net/tcp|tail -n +2|while read L;do echo $(hex2ipport $(echo $L|awk '{print $2}')) $(hex2ipport $(echo $L|awk '{print $3}')) ${S[$(( 0x$(echo $L|awk '{print $4}') ))]};done

New blog post: Recovering public keys from signatures. It turns out public keys, are, in fact, public.

https://keymaterial.net/2024/06/15/reconstructing-public-keys-from-signatures/

Reconstructing public keys from signatures

One weird hobby of mine is reasonable properties of cryptographic schemes that nobody promised they do or don’t have. Whether that’s invisible salamanders or binding through shared secr…

Key Material