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Binding to 0.0.0.0 #2

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akondasif opened this issue Apr 16, 2019 · 0 comments

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akondasif commented Apr 16, 2019

Greetings,

I am a security researcher, who is looking for security smells in Chef 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/cookbooks/ic-hadoop_cluster/blob/master/cookbooks/graphite/attributes/default.rb

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