Vulnerability record

CVE-2022-23227

NUUO NVRmini2 Devices Missing Authentication Vulnerability

Severity: CriticalExploitation: Exploitation confirmedCISA KEV
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run NVRmini2 Devices, fix it now.

CISA required action: The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.

US federal civilian agencies must remediate by Jan 8, 2025.

Patch status

No official fix confirmed yet

Until a fix ships, follow the vendor's mitigations and CISA's required action, limit exposure of affected systems, and watch this record for a patch.

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.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

Products affected by this vulnerability, with versions and the source of each entry
ProductVendorSource
NVRmini2 DevicesNUUOKEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog. Version details have not been published yet.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2022-23227 scored CVSS 9.8: NUUO NVRmini2 Devices, NUUO NVRmini2 Devices Missing Authentication Vulnerability

    CISA lists this as exploited in the wild. Unpatched NVRmini2 Devices systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References

  • nuuo.com https://nuuo.com/wp-content/uploads/2023/03/NUUO-EOL-letter_NVRmini-2-and-NVRsolo-series.pdf
  • nvd.nist.gov https://nvd.nist.gov/vuln/detail/CVE-2022-23227
  • github.com https://github.com/pedrib/PoC/blob/master/advisories/NUUO/nuuo_nvrmini_round2.mkd
  • github.com https://github.com/rapid7/metasploit-framework/pull/16044
  • news.ycombinator.com https://news.ycombinator.com/item?id=29936569
  • portswigger.net https://portswigger.net/daily-swig/researcher-discloses-alleged-zero-day-vulnerabilities-in-nuuo-nvrmini2-reco…
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23227