Information disclosure in Siemens Mendix Applications

1) Use of Web Browser Cache Containing Sensitive Information

EUVDB-ID: #VU58197

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-42015

CWE-ID: CWE-525 - Use of Web Browser Cache Containing Sensitive Information

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to applications built with the affected versions of Mendix Studio Pro do not prevent file documents from being cached when files are opened or downloaded using a browser. A remote attacker can gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Mendix Applications using Mendix 7: before 7.23.26

Mendix Applications using Mendix 8: before 8.18.12

Mendix Applications using Mendix 9: before 9.6.1

External links

http://cert-portal.siemens.com/productcert/pdf/ssa-338732.pdf

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.