What is the CVSS score of CVE-2020-5739?

CVE-2020-5739 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 5.3%.

Is there a public PoC exploit available for CVE-2020-5739?

Yes, a public proof-of-concept exploit is available for CVE-2020-5739. Prioritise patching immediately. EPSS: 5.3%.

Gxp1610 Firmware CVE-2020-5739

HIGH

Code Injection (CWE-94)

2020-04-14 vulnreport@tenable.com

RCE Code Injection Gxp1610 Firmware Gxp1615 Firmware Gxp1620 Firmware Gxp1625 Firmware Gxp1628 Firmware Gxp1630 Firmware

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Apr 14, 2020 - 14:15 nvd

HIGH 8.8

DescriptionNVD

Grandstream GXP1600 series firmware 1.0.4.152 and below is vulnerable to authenticated remote command execution when an attacker adds an OpenVPN up script to the phone's VPN settings via the "Additional Settings" field in the web interface. When the VPN's connection is established, the user defined script is executed with root privileges.

AnalysisAI

Grandstream GXP1600 series firmware 1.0.4.152 and below is vulnerable to authenticated remote command execution when an attacker adds an OpenVPN up script to the phone's VPN settings via the. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Code Injection (CWE-94), which allows attackers to inject and execute arbitrary code within the application. Grandstream GXP1600 series firmware 1.0.4.152 and below is vulnerable to authenticated remote command execution when an attacker adds an OpenVPN up script to the phone's VPN settings via the "Additional Settings" field in the web interface. When the VPN's connection is established, the user defined script is executed with root privileges. Affected products include: Grandstream Gxp1610 Firmware, Grandstream Gxp1615 Firmware, Grandstream Gxp1620 Firmware, Grandstream Gxp1625 Firmware, Grandstream Gxp1628 Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Never evaluate user-controlled input as code. Use sandboxing, disable dangerous functions, apply strict input validation.