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CVE-2020-15261

8.0 · HIGH

On Windows the Veyon Service before version 4.4.2 contains an unquoted service path vulnerability, allowing locally authenticated users with administrative privileges to run malicious executables w…

Published Oct 19, 2020CWE-428EPSS 11.25%

Overview

CVE-2020-15261 is a high-severity vulnerability. It was published on October 19, 2020 and has a CVSS 3.1 base score of 8.0 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.0, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

On Windows the Veyon Service before version 4.4.2 contains an unquoted service path vulnerability, allowing locally authenticated users with administrative privileges to run malicious executables with LocalSystem privileges. Since Veyon users (both students and teachers) usually don't have administrative privileges, this vulnerability is only dangerous in anyway unsafe setups. The problem has been fixed in version 4.4.2. As a workaround, the exploitation of the vulnerability can be prevented by revoking administrative privileges from all potentially untrustworthy users.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refpacketstormsecurity.com/files/162873/Veyon-4.4.1-Unquoted-Service-Path.htmlGitHubgithub.com/veyon/veyon/commit/f231ec511b9a09f43f49b2c7bb7c60b8046276b1GitHubgithub.com/veyon/veyon/issues/657GitHubgithub.com/veyon/veyon/security/advisories/GHSA-c8cc-x786-hqqpRefwww.exploit-db.com/exploits/48246Refwww.exploit-db.com/exploits/49925Refpacketstormsecurity.com/files/162873/Veyon-4.4.1-Unquoted-Service-Path.htmlGitHubgithub.com/veyon/veyon/commit/f231ec511b9a09f43f49b2c7bb7c60b8046276b1GitHubgithub.com/veyon/veyon/issues/657GitHubgithub.com/veyon/veyon/security/advisories/GHSA-c8cc-x786-hqqp

How CyberStrike helps

Frequently asked questions

What is CVE-2020-15261?

CVE-2020-15261 is a high-severity vulnerability. It was published on October 19, 2020 and has a CVSS 3.1 base score of 8.0 (HIGH).

How severe is CVE-2020-15261?

This vulnerability has a CVSS 3.1 base score of 8.0, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2020-15261?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2020-15261?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2020-15261 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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