Is there a public PoC exploit available for CVE-2023-2373?

Yes, a public proof-of-concept exploit is available for CVE-2023-2373. Prioritise patching immediately. EPSS: 4.3%.

Edgemax Edgerouter Firmware CVE-2023-2373

Q: What is the CVSS score of CVE-2023-2373?

CVE-2023-2373 has a CVSS 4.0 base score of 7.3 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 4.3%.

HIGH

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') (CWE-74)

2023-04-28 cna@vuldb.com

Ubiquiti Command Injection Edgemax Edgerouter Firmware

7.3

CVSS 4.0 · Vendor: vuldb

Severity by source

Vendor (vuldb) PRIMARY

7.3 HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from Vendor (vuldb) · only source for this CVE.

CVSS VectorVendor: vuldb

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Lifecycle Timeline

CVE Published

Apr 28, 2023 - 14:15 cve.org

HIGH 7.3

DescriptionCVE.org

A vulnerability was identified in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. This vulnerability affects unknown code of the component Web Management Interface. Such manipulation of the argument ecn-up leads to command injection. The attack may be performed from remote. The exploit is publicly available and might be used. The actual existence of this vulnerability is currently in question. The vendor position is that post-authentication issues are not accepted as vulnerabilities.

AnalysisAI

A vulnerability was identified in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. Rated high severity (CVSS 7.3), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-74. A vulnerability was identified in Ubiquiti EdgeRouter X up to 2.0.9-hotfix.6. This vulnerability affects unknown code of the component Web Management Interface. Such manipulation of the argument ecn-up leads to command injection. The attack may be performed from remote. The exploit is publicly available and might be used. The actual existence of this vulnerability is currently in question. The vendor position is that post-authentication issues are not accepted as vulnerabilities. Affected products include: Ui Edgemax Edgerouter Firmware. Version information: up to 2.0.9.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.