CVE-2023-3306
Published: 18 June 2023
Summary
CVE-2023-3306 is a high-severity Improper Access Control (CWE-284) vulnerability in Ruijie Rg-Ew1200G Firmware. Its CVSS base score is 7.3 (High).
Operationally, ranked in the top 1.8% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2023-3306 is an improper access control vulnerability affecting the Admin Password Handler component in Ruijie RG-EW1200G firmware version EW_3.0(1)B11P204. The flaw resides in the file app.09df2a9e44ab48766f5f.js, where manipulation of access control mechanisms can be performed without authentication. It carries a CVSS 3.1 base score of 7.3 and is tracked under CWE-284, with the issue publicly disclosed under VDB-231802.
Remote attackers can exploit the vulnerability over the network without requiring credentials or user interaction, enabling them to bypass intended restrictions on the admin password handler and achieve limited impacts on confidentiality, integrity, and availability. A public exploit has been released and may be used in attacks.
No vendor patch or mitigation guidance is available. The original disclosure notes that Ruijie was contacted prior to publication but did not respond.
The associated EPSS score has remained flat at a peak and current value of 0.5690 with no material rise after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-43976
Vulnerability details
A vulnerability was found in Ruijie RG-EW1200G EW_3.0(1)B11P204. It has been declared as critical. This vulnerability affects unknown code of the file app.09df2a9e44ab48766f5f.js of the component Admin Password Handler. The manipulation leads to improper access controls. The attack can be…
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initiated remotely. The exploit has been disclosed to the public and may be used. VDB-231802 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
The access control policy and procedures directly mandate and enforce proper access control mechanisms across the organization.
Device lock enforces restricted access until re-authentication, directly reducing unauthorized use of active sessions.
Supervision and review of access control activities directly detects and remediates improper access configurations or usages.
Explicitly identifying and documenting actions permitted without identification or authentication enforces proper access control boundaries by defining justified exceptions.
By automatically labeling outputs with security attributes, the control supports attribute-based enforcement and reduces exploitability of improper access control weaknesses.
Associating and retaining security attributes with data directly supports enforcement of access control decisions across storage, processing, and transmission.
Requiring prior authorization for each remote access type prevents improper access control over remote connections.
Requiring authorization of wireless access before allowing connections enforces proper access control for this access method.