Actively exploited · Published Jan 14, 2022 · Assigned by mitre
CVE-2022-23227
Critical 9.8 Exploited
In plain English
A critical-severity missing authentication in NVRmini2 Devices from NUUO. Attackers are actively exploiting it in the wild (listed by CISA on December 18, 2024). The chance it is exploited in the next 30 days is estimated at 48.5% (higher than 99% of all known vulnerabilities). The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.
CISA guidance
The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.
Federal agencies must remediate by Jan 8, 2025.
Official description
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.
Affected products (as reported)
Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://github.com/pedrib/PoC/blob/master/advisories/NUUO/nuuo_nvrmini_round2.mkd x_refsource_MISC
- https://github.com/rapid7/metasploit-framework/pull/16044 x_refsource_MISC
- https://portswigger.net/daily-swig/researcher-discloses-alleged-zero-day-vulnerabilities-in-nuuo-nvrmini2-recording-device x_refsource_MISC
- https://news.ycombinator.com/item?id=29936569 x_refsource_MISC
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23227 government-resource