CVE-2023-28725Crypto Application Server Unrestricted File Upload
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…
Published Mar 21, 2023 · Updated Feb 26, 2025
Key Facts
Patch immediately- CVE-2023-28725 is a critical-severity vulnerability (CVSS 9.1 v3.1) affecting Crypto Application Server (Generalbytes).
- It is exploited in the wild, listed in Industry KEV feed since Mar 21, 2023. A public exploit is reported by tracking sources, but no code link is listed yet.
- EPSS estimates a 21% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Scores
CVSS v3.1
9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS (30-day exploit likelihood)
21%
Higher than 97.5% of all scored CVEs
Exploit maturity
Exploited (KEV)
ATLAS score
49/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Mar 21, 2023
0 days after publication
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Exploited (KEV)
Public exploit code
0
Proof-of-concept links
In-the-wild evidence
4
Reports of active use
Advisories And Exploit References
Description
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| Industry KEV feed | Mar 21, 2023 | n/a | Not reported |
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Crypto Application ServerGeneralbytes | 20230120 | n/a |
Timeline
Publicly disclosed
Mar 21, 2023
Added to Industry KEV feed
Mar 21, 2023
Last updated
Feb 26, 2025
Weakness Type
- CWE-434 Unrestricted Upload of File with Dangerous Type
References
- advisoryweb3isgoinggreat.com · general-bytes-crypto-atms-exploited-for-over-1-…
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
- exploitVulnCheck exploitation report
FAQ
Common Questions.
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.
Affected: Crypto Application Server (Generalbytes) versions 20230120. The full list is in the CVE brief.
It is exploited in the wild, listed in Industry KEV feed since Mar 21, 2023.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
A public exploit is reported by tracking sources, but no code link is listed yet.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
Is CVE-2023-28725 On Your Attack Surface?
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