#VU31233 Improper Authentication in OpenEMR - CVE-2018-15152

Vulnerability identifier: #VU31233

Vulnerability risk: High

CVSSv4.0: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Amber]

CVE-ID: CVE-2018-15152

CWE-ID: CWE-287

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
OpenEMR
Client/Desktop applications / Other client software

Vendor: OpenEMR

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

Authentication bypass vulnerability in portal/account/register.php in versions of OpenEMR before 5.0.1.4 allows a remote attacker to access (1) portal/add_edit_event_user.php, (2) portal/find_appt_popup_user.php, (3) portal/get_allergies.php, (4) portal/get_amendments.php, (5) portal/get_lab_results.php, (6) portal/get_medications.php, (7) portal/get_patient_documents.php, (8) portal/get_problems.php, (9) portal/get_profile.php, (10) portal/portal_payment.php, (11) portal/messaging/messages.php, (12) portal/messaging/secure_chat.php, (13) portal/report/pat_ledger.php, (14) portal/report/portal_custom_report.php, or (15) portal/report/portal_patient_report.php without authenticating as a patient.

Mitigation
Install update from vendor's website.

Vulnerable software versions

OpenEMR: 5.0.1.1 - 5.0.1.3

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External links
https://github.com/openemr/openemr/pull/1758/files
https://insecurity.sh/reports/openemr.pdf
https://www.databreaches.net/openemr-patches-serious-vulnerabilities-uncovered-by-project-insecurity/
https://www.open-emr.org/wiki/index.php/OpenEMR_Patches

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.