CVE-2022-4980 json
General Bytes Crypto Application Server (CAS) Unauthenticated Creation of Admin Account via Default-installation/First-admin Page
published 2025-09-19 13 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-30276
- cvss
- 9.3
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
General Bytes Crypto Application Server (CAS) beginning with version 20201208 prior to 20220531.38 (backport) and 20220725.22 (mainline) contains an authentication bypass in the admin web interface. An unauthenticated attacker could invoke the same URL used by the product's default-installation / first-admin creation page and create a new administrative account remotely. By gaining admin privileges, the attacker can change the ATM configuration resulting in redirected funds. Public vendor advisories and multiple independent writeups describe the vulnerability as a call to the page used for initial/default installation / first administration user creation; General Bytes has not publicly published the exact endpoint/parameter name. The issue was actively exploited in the wild against cloud-hosted and standalone CAS deployments (scanning exposed CAS instances on ports 7777/443), and publicly acknowledged by the General Bytes in September 2022.
Patch / fix
- General Bytes Crypto Application Server (CAS) 20220531.38, 20220725.22
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 13 mo ago
Exploit prediction
0.66% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N |
| CNA | 4.0 | 9.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- General Bytes Crypto Application Server (CAS)
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
-
generalbytes.atlassian.net
/wiki/spaces/ESD/pages/2785509377/Security%2BIncident%2B
vendor-advisory, patch
-
halborn.com
/blog/post/explained-the-general-bytes-bitcoin-atm-hack-august-2022
third-party-advisory
-
news.sophos.com
/en-us/2022/08/23/bitcoin-atms-leeched-by-attackers-who-created-fake-admin-accounts/
third-party-advisory
-
incibe.es
/en/incibe-cert/publications/cybersecurity-highlights/0day-vulnerability-exploited-general-bytes
third-party-advisory
-
thehackernews.com
/2022/08/hackers-stole-crypto-from-bitcoin-atms.html
media-coverage
-
vulncheck.com
/advisories/general-bytes-cas-unauth-creation-of-admin-account-via-default-installation-first-admin-page
third-party-advisory
Sources
- CVE List CVE-2022-4980
- NVD CVE-2022-4980
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.