[https://medium.com/bugbountywriteup/nodejs-ssrf-by-response-splitting-asis-ctf-finals-2018-proxy-proxy-question-walkthrough-9a2424923501](https://medium.com/bugbountywriteup/nodejs-ssrf-by-response-splitting-asis-ctf-finals-2018-proxy-proxy-question-walkthrough-9a2424923501)

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Original writeup (https://medium.com/bugbountywriteup/nodejs-ssrf-by-response-splitting-asis-ctf-finals-2018-proxy-proxy-question-walkthrough-9a2424923501).