Vulnerability in Hasomed Elefant Software Updater
CVE-2024-50592
An attacker with local access the to medical office computer can escalate his Windows user privileges to "NT AUTHORITY\SYSTEM" by exploiting a race condition in the Elefant Update Service during the repair or update process. When using the repair function, the service queries the server for a list of files and their hashes. In addition, instructions to execute binaries to finalize the repair process are included. The executables are executed as "NT AUTHORITY\SYSTEM" after they are copied over to the user writable installation folder (C:\Elefant1). This means that a user can overwrite either "PostESUUpdate.exe" or "Update_OpenJava.exe" in the time frame after the copy and before the execution of the final repair step. The overwritten executable is then executed as "NT AUTHORITY\SYSTEM".
Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (6.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Hasomed Elefant Software Updater — versions <1.4.2.1811
Weakness classification (CWE)
References
- 551230f0-3615-47bd-b7cc-93e92e730bbf (third-party-advisory)
- 551230f0-3615-47bd-b7cc-93e92e730bbf (patch)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2024-50592?
- CVE-2024-50592 is a high-severity vulnerability in Hasomed Elefant Software Updater, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.0/10. Published 2024-11-08.
- How severe is CVE-2024-50592?
- High severity. CVSS v3 base score is 7.0 out of 10.