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CVE-2021-39274

9.8 · CRITICAL

In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during installation, allowing an unprivileged user to modify the main application and the application config…

Published Aug 19, 2021CWE-276EPSS 3.12%

Overview

CVE-2021-39274 is a critical-severity vulnerability. It was published on August 19, 2021 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

In XeroSecurity Sn1per 9.0 (free version), insecure directory permissions (0777) are set during installation, allowing an unprivileged user to modify the main application and the application configuration file. This results in arbitrary code execution with root privileges.

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

GitHubgithub.com/1N3/Sn1per/issues/357GitHubgithub.com/1N3/Sn1per/releasesGitHubgithub.com/nikip72/CVE-2021-39273-CVE-2021-39274GitHubgithub.com/1N3/Sn1per/issues/357GitHubgithub.com/1N3/Sn1per/releasesGitHubgithub.com/nikip72/CVE-2021-39273-CVE-2021-39274

How CyberStrike helps

Frequently asked questions

What is CVE-2021-39274?

CVE-2021-39274 is a critical-severity vulnerability. It was published on August 19, 2021 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2021-39274?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-39274?

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-2021-39274?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-39274 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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