CVE-2021-40334 SSH activation problem in the proprietary management protocol (port TCP 5558)
An attacker can disrupt network management communication by exploiting a missing handler in the proprietary management protocol on Hitachi Energy devices.
- 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-2021-40334?
CVE-2021-40334 is a high-severity missing authorization vulnerability in Hitachi Energy FOX61x, published on 2 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Missing Handler vulnerability in the proprietary management protocol (port TCP 5558) of Hitachi Energy FOX61x, XCM20 allows an attacker that exploits the vulnerability by activating SSH on port TCP 5558 to cause disruption to the NMS and NE communication. This issue affects: Hitachi Energy FOX61x versions prior to R15A. Hitachi Energy XCM20 versions prior to R15A.
Weakness: CWE-431
Which versions are affected by CVE-2021-40334?
It affects 2 products.
Products include Hitachienergy Fox615 Firmware, Hitachienergy Xcm20 Firmware.
How do I fix CVE-2021-40334?
No fix has been published for CVE-2021-40334 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-2021-40334 being exploited?
There is no known exploitation of CVE-2021-40334 in the wild and no public exploit code.
Other vulnerabilities in Hitachi Energy FOX61x
Sources
Also known as GHSA-4cmw-rq6h-3v7m.