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iCMS V7.0.11 Has A SSRF vulnerability #40

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jiguangin opened this issue Aug 18, 2018 · 0 comments

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commented Aug 18, 2018

A SSRF vulnerability was discovered in iCMS V7.0.11 .here is a SSRF vulnerability that allows attackers to remotely construct malicious data to read server sensitive information. via the /iCMS/admincp.php?app=spider&do=testdata&url={url}&rid=2&pid=0&title=jiguang

Notice

This vulnerability is used in the right way https://github.com/idreamsoft/iCMS/issues/33 of loophole repair is bypassed, or the flaw caused by imperfect repair.

cause of loopholes
1.The following is the repair code of https://github.com/idreamsoft/iCMS/issues/33. In the code, the URL is judged by the intranet IP before request.

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2.Bypass the idea

Through the custom domain name, specify the parsed A record as the intranet IP 127.0.0.1, bypassing the URL detection of the program.

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POC
&url=http://icms.dns.jiguang.in:3306

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&url=http://icms.dns.jiguang.in:27017

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