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CVE-2021-31155

7.8 · HIGH

Failure to normalize the umask in please before 0.4 allows a local attacker to gain full root privileges if they are allowed to execute at least one command.

Published May 27, 2021CWE-732EPSS 0.41%

Overview

CVE-2021-31155 is a high-severity vulnerability. It was published on May 27, 2021 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Failure to normalize the umask in please before 0.4 allows a local attacker to gain full root privileges if they are allowed to execute at least one command.

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

Refgitlab.com/edneville/please/-/tree/master/src/binRefwww.openwall.com/lists/oss-security/2021/05/18/1Refgitlab.com/edneville/please/-/tree/master/src/binRefwww.openwall.com/lists/oss-security/2021/05/18/1

How CyberStrike helps

Frequently asked questions

What is CVE-2021-31155?

CVE-2021-31155 is a high-severity vulnerability. It was published on May 27, 2021 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2021-31155?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-31155?

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-2021-31155?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-31155 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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