CVE-2021-22642 Ovarro TBox Uncontrolled Resource Consumption
An attacker can crash the Ovarro TBox system by sending specially crafted invalid Modbus frames, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-22642?
CVE-2021-22642 is a high-severity denial of service vulnerability in Ovarro TBox, published on 28 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An attacker could use specially crafted invalid Modbus frames to crash the Ovarro TBox system.
Weakness: CWE-400
Which versions are affected by CVE-2021-22642?
It affects 8 products.
Products include Ovarro Tbox Lt2-530 Firmware, Ovarro Tbox Lt2-532 Firmware, Ovarro Tbox Lt2-540 Firmware, Ovarro Tbox Ms-Cpu32-S2 Firmware, Ovarro Tbox Ms-Cpu32 Firmware, Ovarro Tbox Rm2 Firmware and 2 more.
How do I fix CVE-2021-22642?
No fix has been published for CVE-2021-22642 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-22642 being exploited?
There is no known exploitation of CVE-2021-22642 in the wild and no public exploit code.
Other vulnerabilities in Ovarro TBox
- CVE-2021-22646 Ovarro TBox Code Injection
- CVE-2021-22648 Ovarro TBox Incorrect Permission Assignment for Critical Resource
- CVE-2021-22640 Ovarro TBox Insufficiently Protected Credentials
- CVE-2021-22644 Ovarro TBox Use of Hard-coded Cryptographic Key
- CVE-2021-22650 Ovarro TBox Relative Path Traversal
Sources
Also known as GHSA-f83w-fm29-6mfh.