CVE-2021-27428 GE UR family Unrestricted Upload of File with Dangerous Type
An attacker can upload malicious firmware to GE UR IEDs without proper privileges, potentially executing arbitrary code or escalating privileges.
- 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-2021-27428?
CVE-2021-27428 is a critical vulnerability in GE UR family, published on 23 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
GE UR IED firmware versions prior to version 8.1x supports upgrading firmware using UR Setup configuration tool – Enervista UR Setup. This UR Setup tool validates the authenticity and integrity of firmware file before uploading the UR IED. An illegitimate user could upgrade firmware without appropriate privileges. The weakness is assessed, and mitigation is implemented in firmware Version 8.10.
Weakness: CWE-434
Which versions are affected by CVE-2021-27428?
It affects 19 products.
Products include Ge Multilin B30 Firmware, Ge Multilin B90 Firmware, Ge Multilin C30 Firmware, Ge Multilin C60 Firmware, Ge Multilin C70 Firmware, Ge Multilin C95 Firmware and 13 more.
How do I fix CVE-2021-27428?
No fix has been published for CVE-2021-27428 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-27428 being exploited?
There is no known exploitation of CVE-2021-27428 in the wild and no public exploit code.
Other vulnerabilities in GE UR family
- CVE-2021-27426 GE UR family insecure default variable initialization
- CVE-2021-27422 GE UR family exposure of sensitive information to an unauthorized actor
- CVE-2021-27418 GE UR family input validation
- CVE-2021-27420 GE UR family input validation
- CVE-2021-27424 GE UR family exposure of sensitive information to an unauthorized actor
Sources
Also known as GHSA-f7x4-vpfj-xmrc.