Cyber Resilience

CVE-2023-2376

MediumPublic PoC

Published: 28 April 2023

Published
28 April 2023
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS Score 0.1373 94.4th percentile
Risk Priority 21 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2023-2376 is a medium-severity Command Injection (CWE-77) vulnerability in Ui Er-X Firmware. Its CVSS base score is 6.3 (Medium).

Operationally, ranked in the top 5.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Deeper analysis

A vulnerability identified as CVE-2023-2376 affects the Web Management Interface component of Ubiquiti EdgeRouter X devices running firmware up to version 2.0.9-hotfix.6. The issue stems from improper handling of the dpi argument, enabling command injection as classified under CWE-77. It received a CVSS 3.1 score of 6.3 and was rated critical in public records, with the flaw residing in an unknown function of the interface.

The vulnerability can be exploited remotely by an authenticated user with low privileges. Successful manipulation of the dpi parameter allows an attacker to inject and execute arbitrary commands, resulting in limited impacts to confidentiality, integrity, and availability without requiring user interaction.

Public references include exploit code disclosed on GitHub along with entries on Vuldb, confirming that working proof-of-concept material has been released. The associated EPSS score remains flat at a peak and current value of 0.1373, indicating no material increase in observed exploitation interest following disclosure. No official patch or mitigation details appear in the provided references.

EU & UK References

Vulnerability details

A vulnerability was found in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. It has been classified as critical. Affected is an unknown function of the component Web Management Interface. The manipulation of the argument dpi leads to command injection. It is…

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possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-227652.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

ui
er-x firmware
2.0.9 · ≤ 2.0.9
ui
er-x-sfp firmware
2.0.9 · ≤ 2.0.9

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References