CVE-2022-23227

NUUO NVRmini2 through 3.11 allows an unauthenticated attacker to upload an encrypted TAR archive, which can be abused to add arbitrary users because of the lack of handle_import_user.php authentication. When combined with another flaw (CVE-2011-5325), it is possible to overwrite arbitrary files under the web root and achieve code execution as root.

Score

CVSS 3.1 9.8 Critical

Status

Analyzed - cve@mitre.org

Published

2022-01-14

Last modified

2025-10-21

Known exploited (CISA KEV)

since 2024-12-18, action due 2025-01-08: The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.

Weaknesses

CWE-306

Affected products

• Nvrmini2 Firmware (Nuuo)

References

• https://github.com/pedrib/PoC/blob/master/advisories/NUUO/nuuo_nvrmini_round2.mkd
• https://github.com/rapid7/metasploit-framework/pull/16044
• https://news.ycombinator.com/item?id=29936569
• https://portswigger.net/daily-swig/researcher-discloses-alleged-zero-day-vulnerabilities-in-nuuo-nvrmini2-recording-dev…
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23227