CVE-2022-4980

Description

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.

PUBLISHED Reserved 2025-09-18 | Published 2025-09-19 | Updated 2025-09-19 | Assigner VulnCheck

Problem types

CWE-306: Missing Authentication for Critical Function

Product status

Credits

General Bytes (vendor disclosure) finder

References

generalbytes.atlassian.net/.../2785509377/Security+Incident+ vendor-advisory patch

www.halborn.com/...eneral-bytes-bitcoin-atm-hack-august-2022 third-party-advisory

news.sophos.com/...ttackers-who-created-fake-admin-accounts/ third-party-advisory

www.incibe.es/.../0day-vulnerability-exploited-general-bytes third-party-advisory

thehackernews.com/...ers-stole-crypto-from-bitcoin-atms.html media-coverage

www.vulncheck.com/...a-default-installation-first-admin-page third-party-advisory

cve.org (CVE-2022-4980)

nvd.nist.gov (CVE-2022-4980)

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