CVE-2021-42025 Missing authorization in Mendix Applications using Mendix 8

What is CVE-2021-42025?

CVE-2021-42025 is a medium-severity missing authorization vulnerability in Siemens Mendix Applications using Mendix 8, published on 9 Nov 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability has been identified in Mendix Applications using Mendix 8 (All versions < V8.18.13), Mendix Applications using Mendix 9 (All versions < V9.6.2). Applications built with affected versions of Mendix Studio Pro do not properly control write access for certain client actions. This could allow authenticated attackers to manipulate the content of System.FileDocument objects in some cases, regardless whether they have write access to it.

Weakness: CWE-863

Which versions are affected by CVE-2021-42025?

It affects 1 product.

Products include Mendix Mendix.

How do I fix CVE-2021-42025?

No fix has been published for CVE-2021-42025 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-42025 being exploited?

There is no known exploitation of CVE-2021-42025 in the wild and no public exploit code.

Other vulnerabilities in Siemens Mendix Applications using Mendix 8

• CVE-2021-27394 Privilege escalation in Mendix Applications using Mendix 7 High 8.8
• CVE-2022-31257 Security feature bypass in Mendix Applications using Mendix 7 High 7.5
• CVE-2022-27241 Information disclosure in Mendix Applications using Mendix 7 High 7.5
• CVE-2024-50313 Race condition in Mendix Runtime V10 Medium 6.9
• CVE-2022-24309 Missing authorization in Mendix Runtime V7 Medium 6.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-xr6q-pmrg-xhqr.