CVE-2022-23227 on CISA KEV

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

01What CISA says about this vulnerability

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.

02Required action — verbatim from CISA

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

03Notes & references

• github.com — https://github.com/pedrib/PoC/blob/master/advisories/NUUO/nuuo_nvrmini_round2.mk…
• github.com — https://github.com/rapid7/metasploit-framework/pull/16044
• portswigger.net — https://portswigger.net/daily-swig/researcher-discloses-alleged-zero-day-vulnera…
• news.ycombinator.com — https://news.ycombinator.com/item?id=29936569

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
n	a / n/a	n/a

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

Open in Sigma generator →