9.3

CVE-2022-4980

Medienbericht

General Bytes Crypto Application Server (CAS) Unauthenticated Creation of Admin Account via Default-installation/First-admin Page

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerGeneral Bytes
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Produkt Crypto Application Server (CAS)
Default Statusunaffected
Version 20201208
Version < 20220725.22
Status affected
Version 20201208
Version < 20220531.38
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.81% 0.52
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
disclosure@vulncheck.com 9.3 0 0
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
CWE-306 Missing Authentication for Critical Function

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

https://generalbytes.atlassian.net/wiki/spaces/ESD/pages/2785509377/Security%2BIncident%2B
https://www.halborn.com/blog/post/explained-the-general-bytes-bitcoin-atm-hack-august-2022
https://news.sophos.com/en-us/2022/08/23/bitcoin-atms-leeched-by-attackers-who-created-fake-admin-accounts/
https://www.incibe.es/en/incibe-cert/publications/cybersecurity-highlights/0day-vulnerability-exploited-general-bytes
https://thehackernews.com/2022/08/hackers-stole-crypto-from-bitcoin-atms.html
https://www.vulncheck.com/advisories/general-bytes-cas-unauth-creation-of-admin-account-via-default-installation-first-admin-page