CVE-2022-4980 — General Bytes Crypto Application Server (CAS) beginning with version 20201208 pr

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

01What is this vulnerability?

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…

02Affected products

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on —.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2025-09-19T18:55:02.928Z
• Last modified: 2025-11-21T16:07:20.732Z

09References

• generalbytes.atlassian.net — https://generalbytes.atlassian.net/wiki/spaces/ESD/pages/2785509377/Security%2BI…
• www.halborn.com — https://www.halborn.com/blog/post/explained-the-general-bytes-bitcoin-atm-hack-a…
• news.sophos.com — https://news.sophos.com/en-us/2022/08/23/bitcoin-atms-leeched-by-attackers-who-c…
• www.incibe.es — https://www.incibe.es/en/incibe-cert/publications/cybersecurity-highlights/0day-…
• thehackernews.com — https://thehackernews.com/2022/08/hackers-stole-crypto-from-bitcoin-atms.html
• www.vulncheck.com — https://www.vulncheck.com/advisories/general-bytes-cas-unauth-creation-of-admin-…