Auth bypass in Magicjack A921
CVE-2023-30024
The MagicJack device, a VoIP solution for internet phone calls, contains a hidden NAND flash memory partition allowing unauthorized read/write access. Attackers can exploit this by replacing the original software with a malicious version, leading to ransomware deployment on the host computer. Affected devices have firmware versions prior to magicJack A921 USB Phone Jack Rev 3.0 V1.4.
Vulnerability class: Privilege Escalation
EPSS: 0.005 (38.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Magicjack A921 — versions 3.0
- Magicjack A921_firmware — versions 1.4
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Product)
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (Exploit)
- cve@mitre.org (Technical Description, Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-30024?
- CVE-2023-30024 is a medium-severity vulnerability in Magicjack A921, classified under Improper Privilege Management. CVSS score: 6.6/10. Published 2023-04-28.
- How severe is CVE-2023-30024?
- Medium severity. CVSS v3 base score is 6.6 out of 10.