Multiple vulnerabilities in OpenEMR



Published: 2017-03-03
Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2018-1000019
CVE-2018-1000020
CWE-ID CWE-78
CWE-79
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		OpenEMR
Client/Desktop applications / Other client software

Vendor OpenEMR

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) OS command execution

EUVDB-ID: #VU10840

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1000019

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote authenticated attacker to execute arbitrary shell commands on the target system.

The weakness exists in fax_dispatch.php due to insufficient validation of user-supplied input. A remote attacker can inject arbitrary commands in the context of the authenticated user.

Mitigation

Install update from vendor's website.

Vulnerable software versions

OpenEMR: 5.0.0.1

External links

http://www.sec-consult.com/en/blog/advisories/os-command-injection-reflected-cross-site-scripting-i...


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Cross-site scripting

EUVDB-ID: #VU10841

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1000020

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists in open-flash-chart.swf and _posteddata.phpdue to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation

Install update from vendor's website.

Vulnerable software versions

OpenEMR: 5.0.0.1

External links

http://www.sec-consult.com/en/blog/advisories/os-command-injection-reflected-cross-site-scripting-i...


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.



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