CWE
78 77
Advisory Published
Updated

CVE-2020-5758: OS Command Injection

First published: Fri Jul 17 2020(Updated: )

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.

Credit: vulnreport@tenable.com

Affected SoftwareAffected VersionHow to fix
Grandstream Ucm6202 Firmware<=1.0.20.23
Grandstream Ucm6202
Grandstream Ucm6204 Firmware<=1.0.20.23
Grandstream UCM6204
Grandstream Ucm6208 Firmware<=1.0.20.23
Grandstream Ucm6208

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Frequently Asked Questions

  • What is the severity of CVE-2020-5758?

    The severity of CVE-2020-5758 is critical with a CVSS score of 8.8.

  • How does CVE-2020-5758 affect Grandstream UCM6200 series firmware?

    CVE-2020-5758 allows an authenticated remote attacker to execute OS commands as the root user by sending a crafted HTTP GET to the UCM's "Old" HTTPS API.

  • Which versions of Grandstream UCM6200 series firmware are affected by CVE-2020-5758?

    Grandstream UCM6200 series firmware version 1.0.20.23 and below are affected by CVE-2020-5758.

  • How can an attacker exploit CVE-2020-5758?

    An attacker can exploit CVE-2020-5758 by sending a specially crafted HTTP GET request to the UCM's "Old" HTTPS API.

  • Is Grandstream UCM6202 firmware version 1.0.20.23 vulnerable to CVE-2020-5758?

    Yes, Grandstream UCM6202 firmware version 1.0.20.23 is vulnerable to CVE-2020-5758.

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