Known exploited vulnerability
CVE-2022-23227
The short answer
CVE-2022-23227 affects n/a n/a and is rated critical (CVSS 9.8). CISA added it to the Known Exploited Vulnerabilities catalog on 2024-12-18: attackers are using it, so patch it first.
What it is
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.
Weakness: CWE-306.
Severity
9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Dec 18, 2024
Federal due date Jan 8, 2025
EPSS, next 30 days
48%
Higher than 99% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.
Affected products
n/a. NVD's record lists the exact affected versions.
References
- github.com/pedrib/PoC/blob/master/advisories/NUUO/nuuo_nvrmini_round2.mkd ExploitThird Party Advisory
- github.com/rapid7/metasploit-framework/pull/16044 ExploitIssue TrackingThird Party Advisory
- news.ycombinator.com/item?id=29936569 Third Party Advisory
- portswigger.net/daily-swig/researcher-discloses-alleged-zero-day-vulnerabilities-in-nuuo-nvrmini2-recording-device ExploitThird Party Advisory
- github.com/pedrib/PoC/blob/master/advisories/NUUO/nuuo_nvrmini_round2.mkd ExploitThird Party Advisory
- github.com/rapid7/metasploit-framework/pull/16044 ExploitIssue TrackingThird Party Advisory
- news.ycombinator.com/item?id=29936569 Third Party Advisory
- portswigger.net/daily-swig/researcher-discloses-alleged-zero-day-vulnerabilities-in-nuuo-nvrmini2-recording-device ExploitThird Party Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-23227 US Government Resource
Questions
Is CVE-2022-23227 being exploited?
Yes. CISA added CVE-2022-23227 to its Known Exploited Vulnerabilities catalog on 2024-12-18, with a federal remediation due date of 2025-01-08.
How do I fix CVE-2022-23227?
CISA's required action: The impacted product is end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue utilization of the product.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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