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CVE-2020-5758

HIGHCVSS 8.8/10EPSS 4.38%

Last modified

CVE-2020-5758 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command injection via HTTP. An authenticated remote attacker can execute commands as the root user by sending a crafted HTTP GET to the UCM's "Old" HTTPS API.. EPSS estimates a 4.38% chance of exploitation in the next 30 days.

Description

Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command injection via HTTP. An authenticated remote attacker can execute commands as the root user by sending a crafted HTTP GET to the UCM's "Old" HTTPS API.

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
4.38%

90.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
GrandstreamUcm6202 Firmware<= 1.0.20.23
GrandstreamUcm6204 Firmware<= 1.0.20.23
GrandstreamUcm6208 Firmware<= 1.0.20.23

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-5758?
Grandstream UCM6200 series firmware version 1.0.20.23 and below is vulnerable to OS command injection via HTTP. An authenticated remote attacker can execute commands as the root user by sending a crafted HTTP GET to the UCM's "Old" HTTPS API.
How severe is CVE-2020-5758?
CVE-2020-5758 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 4.38% probability of exploitation in the next 30 days.
How do I fix CVE-2020-5758?
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-2020-5758?

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

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Source: NVD / NIST