Arbitrary file upload in Generalbytes Crypto Application Server
CVE-2023-28725
General Bytes Crypto Application Server (CAS) 20230120, as distributed with General Bytes BATM devices, allows remote attackers to execute arbitrary Java code by uploading a Java application to the /batm/app/admin/standalone/deployments directory, aka BATM-4780, as exploited in the wild in March 2023. This is fixed in 20221118.48 and 20230120.44.
Vulnerability class: Unrestricted File Upload
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.206 (97.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.206 · newest: 0.206 · change: 0.000
Affected products
- Generalbytes Crypto Application Server — versions 20230120
Weakness classification (CWE)
References
- generalbytes.atlassian.net/wiki/spaces/ESD/pages/2885222430/Security+Incident+M… (Exploit, Vendor Advisory)
- www.generalbytes.com/en/support/changelog (Release Notes)
- generalbytes.atlassian.net/wiki/spaces/ESD/pages/951418958/Update+CAS (Mitigation)
- twitter.com/generalbytes/status/1637192687160897537 (Issue Tracking)
- web3isgoinggreat.com/single/general-bytes-crypto-atms-exploited-for-over-1-6-mi… (Third Party Advisory)
- arstechnica.com/information-technology/2023/03/hackers-drain-bitcoin-atms-of-1-… (Press/Media Coverage)
- www.bleepingcomputer.com/news/security/general-bytes-bitcoin-atms-hacked-using-… (Press/Media Coverage)
Frequently asked questions
- What is CVE-2023-28725?
- CVE-2023-28725 is a critical-severity vulnerability in Generalbytes Crypto Application Server, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 9.1/10. Published 2023-03-22.
- How severe is CVE-2023-28725?
- Critical severity. CVSS v3 base score is 9.1 out of 10.