phpMyAdmin 4.9.0.1 – Cross-Site Request Forgery

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MGC ALERT 2019-003
- Original release date: June 13, 2019
- Last revised:  September 13, 2019
- Discovered by: Manuel Garcia Cardenas
- Severity: 4,3/10 (CVSS Base Score)
- CVE-ID: CVE-2019-12922
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I. VULNERABILITY
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phpMyAdmin 4.9.0.1 - Cross-Site Request Forgery

II. BACKGROUND
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phpMyAdmin is a free software tool written in PHP, intended to handle the
administration of MySQL over the Web. phpMyAdmin supports a wide range of
operations on MySQL and MariaDB.

III. DESCRIPTION
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Has been detected a Cross-Site Request Forgery in phpMyAdmin, that allows
an attacker to trigger a CSRF attack against a phpMyAdmin user deleting any
server in the Setup page.

IV. PROOF OF CONCEPT
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Exploit CSRF - Deleting main server

Deleting Server 1


V. BUSINESS IMPACT
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The attacker can easily create a fake hyperlink containing the request that
wants to execute on behalf the user,in this way making possible a CSRF
attack due to the wrong use of HTTP method.

VI. SYSTEMS AFFECTED
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phpMyAdmin < = 4.9.0.1

VII. SOLUTION
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Implement in each call the validation of the token variable, as already
done in other phpMyAdmin requests.

VIII. REFERENCES
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https://www.phpmyadmin.net/

IX. CREDITS
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This vulnerability has been discovered and reported
by Manuel Garcia Cardenas (advidsec (at) gmail (dot) com).

X. REVISION HISTORY
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June 13, 2019 1: Initial release
September 13, 2019 2: Last revision

XI. DISCLOSURE TIMELINE
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June 13, 2019 1: Vulnerability acquired by Manuel Garcia Cardenas
June 13, 2019 2: Send to vendor
July 16, 2019 3: New request to vendor without fix date
September 13, 2019 4: Sent to lists

XII. LEGAL NOTICES
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The information contained within this advisory is supplied "as-is" with no
warranties or guarantees of fitness of use or otherwise.

XIII. ABOUT
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Manuel Garcia Cardenas
Pentester
            

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