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1.6 KiB
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48 lines
No EOL
1.6 KiB
Text
# Exploit Title: Joomla! Component Acymailing Starter 5.9.5 CSV Macro
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Injection
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# Google Dork: N/A
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# Date: 22-03-2018
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################################
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# Exploit Author: Sureshbabu Narvaneni
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################################
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# Vendor Homepage: https://www.acyba.com
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# Software Link: https://extensions.joomla.org/extension/acymailing-starter/
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# Affected Version: 5.9.5
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#Category: WebApps
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# Tested on: Ubuntu 14.04 x86_64/Kali Linux 4.12 i686
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# CVE : CVE-2018-9107
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1. Vendor Description:
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AcyMailing is a reliable Newsletter and email marketing extension for
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Joomla.
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It enables you to efficiently manage an unlimited number of subscribers,
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organize them into mailing lists, send personalized newsletters (Hi
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{name}...)
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2. Technical Description:
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CSV Injection (aka Excel Macro Injection or Formula Injection) exists in
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the export feature in the Acyba AcyMailing extension before 5.9.6 for
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Joomla! via a value that is mishandled in a CSV export.
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3. Proof Of Concept:
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Login as low privileged user who is having access to Acymailing Component.
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Rename user name as @SUM(1+1)*cmd|' /C calc'!A0.
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When high privileged user logged in and exported user data then the CSV
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Formula gets executed and calculator will get popped in his machine.
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4. Solution:
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Upgrade to version 5.9.6
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https://extensions.joomla.org/extension/acymailing-starter/
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5. Reference:
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https://github.com/MrR3boot/CVE-Hunting/blob/master/AcyStarter-CSV.mp4
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https://vel.joomla.org/articles/2140-introducing-csv-injection
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Sureshbabu Narvaneni,
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Security Analyst | Bug Hunter,
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HackerOne (mrreboot/mrr3boot) | BugCrowd (Mr_R3boot) |