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improper address binding #175

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rayhanur-rahman opened this issue Apr 19, 2019 · 0 comments

rayhanur-rahman commented Apr 19, 2019

Greetings,

I am a security researcher, who is looking for security smells in Ansible scripts. I noticed instances of binding to 0.0.0.0. Binding an address to 0.0.0.0 indicates allowing connections from all IP addresses. I would like to draw attention to these instances. Binding to 0.0.0.0 may lead to denial of service attacks. Practitioners have reported how binding to 0.0.0.0 facilitated security issues for MySQL (https://serversforhackers.com/c/mysql-network-security), Memcached (https://news.ycombinator.com/item?id=16493480), and Kibana (https://www.elastic.co/guide/en/kibana/5.0/breaking-changes-5.0.html).

Any feedback is appreciated.

source: https://github.com/rhevm-qe-automation/ovirt-ansible/blob/master/examples/playbooks/remote_db.yml

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