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Description
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High-Tech Bridge SA has discovered multiple vulnerabilities in OpenEMR, which can be exploited by malicious users to disclose sensitive information and compromise a vulnerable system and by malicious people to disclose sensitive information.
1) Input passed via the "formname" parameter to interface/patient_file/encounter/load_form.php, interface/patient_file/encounter/view_form.php, and interface/patient_file/encounter/trend_form.php is not properly verified before being used to include files. This can be exploited to include arbitrary files from local resources via directory traversal attacks and URL-encoded NULL bytes.
2) Input passed via the "formname" parameter to contrib/acog/print_form.php is not properly verified before being used to include files. This can be exploited to include arbitrary files from local resources via directory traversal attacks and URL-encoded NULL bytes.
3) Input passed via the "file" parameter to interface/fax/fax_dispatch.php is not properly sanitised before being used in an "exec()" call. This can be exploited to inject and execute arbitrary shell commands.
Successful exploitation of the vulnerabilities requires that "magic_quotes_gpc" is disabled.
The vulnerabilities are confirmed in version 4.1.0. Other versions may also be affected.
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Vulnerable Products
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Vulnerable Software:
OpenEMR 4.x
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Solution
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Install patch. Please see vendor's advisory for details.
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CVE
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CVE-2012-0992
CVE-2012-0991
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References
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HTB23069:
https://www.htbridge.ch/advisory/HTB23069
OpenEMR:
http://www.open-emr.org/wiki/index.php/OpenEMR_Patches
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Vulnerability Manager Detection
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No
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IPS Protection
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