OpenEMR up to 5.0.1.3 Patient Portal import_template.php docid path traversal

Summaryinfo

A vulnerability was found in OpenEMR up to 5.0.1.3 and classified as problematic. This affects an unknown function of the file portal/import_template.php of the component Patient Portal. Executing a manipulation of the argument docid as part of Directory can lead to path traversal. This vulnerability is tracked as CVE-2018-15140. The attack can be launched remotely. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenEMR up to 5.0.1.3 (Business Process Management Software). It has been declared as problematic. This vulnerability affects an unknown code of the file portal/import_template.php of the component Patient Portal. The manipulation of the argument docid as part of a Directory leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality. CVE summarizes:

Directory traversal in portal/import_template.php in versions of OpenEMR before 5.0.1.4 allows a remote attacker authenticated in the patient portal to read arbitrary files via the "docid" parameter when the mode is set to get.

The bug was discovered 08/07/2018. The weakness was disclosed 08/13/2018 (GitHub Repository). The advisory is shared for download at github.com. This vulnerability was named CVE-2018-15140 since 08/07/2018. The attack can be initiated remotely. A single authentication is needed for exploitation. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1006.

It is possible to download the exploit at exploit-db.com. It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:portal/import_template.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 5.0.1.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Exploit-DB (45202). The entries VDB-122813 and VDB-122814 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Business Process Management Software

Name

• OpenEMR

Version

• 5.0.1.0
• 5.0.1.1
• 5.0.1.2
• 5.0.1.3

License

• open-source

Website

• Product: https://github.com/openemr/openemr/

CPE 2.3info

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CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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