CVE-2021-42026 Missing authorization in Mendix Applications using Mendix 8
Authenticated attackers can bypass access controls to read the changedDate attribute of arbitrary objects in Mendix applications.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-42026?
CVE-2021-42026 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 read access for certain client actions. This could allow authenticated attackers to retrieve the changedDate attribute of arbitrary objects, even when they don't have read access to them.
Weakness: CWE-863
Which versions are affected by CVE-2021-42026?
It affects 1 product.
Products include Mendix Mendix.
How do I fix CVE-2021-42026?
No fix has been published for CVE-2021-42026 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-2021-42026 being exploited?
There is no known exploitation of CVE-2021-42026 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
- CVE-2022-31257 Security feature bypass in Mendix Applications using Mendix 7
- CVE-2022-27241 Information disclosure in Mendix Applications using Mendix 7
- CVE-2024-50313 Race condition in Mendix Runtime V10
- CVE-2022-24309 Missing authorization in Mendix Runtime V7
Sources
Also known as GHSA-2j3j-g2v5-fh5c.