CVEs / CVE-2022-23227
CVE-2022-23227: NUUO NVRmini2 Devices Missing Authentication Vulnerability
- Known exploited in the CISA KEV catalog since 18 Dec 2024
- critical 9.8 CVSS 3.1 (NVD)
- EPSS 48.4% chance of exploitation in the next 30 days, higher than 98% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
NUUO NVRmini2 devices contain a missing authentication vulnerability that allows an unauthenticated attacker to upload an encrypted TAR archive, which can be abused to add arbitrary users.
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 and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| n/a n/a | n/a | — |
Exploitation
| In CISA KEV since | 18 Dec 2024 |
|---|---|
| Due date for US federal agencies | 8 Jan 2025 |
| Used in ransomware campaigns | Unknown |
| Required action | The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product. |
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-306 |
References
- CVE-2022-23227 on NVD
- CVE-2022-23227 in the CISA KEV catalog
- https://nuuo.com/wp-content/uploads/2023/03/NUUO-EOL-letter＿NVRmini-2-and-NVRsolo-series.pdf (cited by CISA)
- https://github.com/pedrib/PoC/blob/master/advisories/NUUO/nuuo_nvrmini_round2.mkd Exploit, Third Party Advisory
- https://github.com/rapid7/metasploit-framework/pull/16044 Exploit, Issue Tracking, Third Party Advisory
- https://news.ycombinator.com/item?id=29936569 Third Party Advisory
- https://portswigger.net/daily-swig/researcher-discloses-alleged-zero-day-vulnerabilities-in-nuuo-nvrmini2-recording-device Exploit, Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23227 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.