resolve method of the node-dns-sync library had a command injection vulnerability. Clients of the node-dns-sync library are unlikely to be aware of this, so they might unwittingly write code that contains a command injection vulnerability. This issue was resolved in version 0.2.1.
resolve method did not sufficiently sanitize user supplied input, which allowed for arbitrary shell command injection.
var dnsSync = require('dns-sync'); dnsSync.resolve('www.paypal.com', " && touch exploit")
Would result in the
touch exploit shell command being run on the system invoking the method.
This issue may lead to remote code execution if a client of the library calls the vulnerable method with untrusted input.
This report was subject to the GHSL coordinated disclosure policy.
CVE-2020-7646, CVE-2020-7614, CVE-2020-7597, CVE-2019-10778, CVE-2019-10776, CVE-2018-16462, CVE-2018-16461, CVE-2018-16460, CVE-2018-13797, CVE-2018-3786, CVE-2018-3772, CVE-2018-3746, CVE-2017-16100, CVE-2017-16042.
This issue was discovered and reported by GitHub Engineer @erik-krogh (Erik Krogh Kristensen).
You can contact the GHSL team at
firstname.lastname@example.org, please include
GHSL-2020-119 in any communication regarding this issue.