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isc:labs:08 [2025/11/24 11:07] florin.stancu [Preparation] |
isc:labs:08 [2025/11/24 12:18] (current) florin.stancu |
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| - If successful, send a broadcast message to your colleague’s system <code>hacker@<colleague-VM>$ wall "Wazzaap?" </code> | - If successful, send a broadcast message to your colleague’s system <code>hacker@<colleague-VM>$ wall "Wazzaap?" </code> | ||
| </note> | </note> | ||
| + | |||
| + | <note warning> | ||
| + | Unfortunately, ''wall'' [[https://sources.debian.org/src/util-linux/2.41-5/debian/NEWS#L1-L9|was removed from modern Debian systems]] :(( | ||
| + | But we gave ''hacker'' write permissions to all ''tty'', so we could do this instead: <code> | ||
| + | # check for the TTY's address | ||
| + | who # usually, the first one is the owner of the VM, coming from FEP | ||
| + | # then write your message! | ||
| + | echo "Wazzaaa" | tee /dev/pts/0 | ||
| + | </code> | ||
| + | </note> | ||
| <solution -hidden> | <solution -hidden> | ||
| Line 280: | Line 290: | ||
| curl http://<colleague-VM-IP> | curl http://<colleague-VM-IP> | ||
| ssh hacker@<colleague-VM-IP> | ssh hacker@<colleague-VM-IP> | ||
| - | wall "Wazzaap?" | + | echo "wazzzaaaaap" | tee /dev/pts/0 |
| </code> | </code> | ||
| </solution> | </solution> | ||
