Multiple vulnerabilities in Dolibarr

Published: 2020-05-28 | Updated: 2020-06-29

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2020-13240 CVE-2020-13239
CWE-ID	CWE-434 CWE-79
Exploitation vector	Network
Public exploit	Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available.
Vulnerable software Subscribe	dolibarr Web applications / CRM systems
Vendor	Dolibarr ERP & CRM

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

Updated 29.06.2020

Added fixed version for vulnerabilities #1-2

1) Arbitrary file upload

EUVDB-ID: #VU28306

Risk: Medium

CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-13240

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload. A remote authenticated user with "Setup documents directories" permission can rename uploaded files to have insecure file extensions, leading to a malicious file execution on the server.

Mitigation

Install update from vendor's website.

Vulnerable software versions

dolibarr: 6.0.0 - 11.0.4

External links

http://www.dubget.com/stored-xss-via-file-upload.html

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. However, proof of concept for this vulnerability is available.

2) Stored cross-site scripting

EUVDB-ID: #VU28305

Risk: Low

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-13239

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 due to the DMS/ECM module renders user-uploaded .html files in the browser when the attachment parameter is removed from the direct download link. A remote attacker can inject 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.