Time-of-check Time-of-use (TOCTOU) Race Condition in Smart Model 25000 Patient Reader - CVE-2020-27252
Published: December 14, 2020
Vulnerability identifier: #VU48957
CSH Severity: Medium
CVSS v4: 8.5 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-27252
CWE-ID: CWE-367
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a race condition in the MCL Smart Patient Reader software update system. A remote attacker on the local network can upload and execute unsigned firmware and execute arbitrary code on the system.
Affected software
Smart Model 25000 Patient Reader
How to mitigate CVE-2020-27252
Install updates from vendor's website.
Smart Model 25000 Patient Reader - update to 5.2