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CVE-2020-5739

HIGHCVSS 8.8/10EPSS 5.34%

Last modified

CVE-2020-5739 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 5.34% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
5.34%

91.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GrandstreamGxp1610 Firmware<= 1.0.4.152
GrandstreamGxp1615 Firmware<= 1.0.4.152
GrandstreamGxp1620 Firmware<= 1.0.4.152
GrandstreamGxp1625 Firmware<= 1.0.4.152
GrandstreamGxp1628 Firmware<= 1.0.4.152
GrandstreamGxp1630 Firmware<= 1.0.4.152

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-5739?
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.
How severe is CVE-2020-5739?
CVE-2020-5739 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 5.34% probability of exploitation in the next 30 days.
How do I fix CVE-2020-5739?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-5739?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST