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CVE-2021-41077

7.5 · HIGH

The activation process in Travis CI, for certain 2021-09-03 through 2021-09-10 builds, causes secret data to have unexpected sharing that is not specified by the customer-controlled .travis.yml file.

Published Sep 14, 2021CWE-862EPSS 1.49%

Overview

CVE-2021-41077 is a high-severity vulnerability. It was published on September 14, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The activation process in Travis CI, for certain 2021-09-03 through 2021-09-10 builds, causes secret data to have unexpected sharing that is not specified by the customer-controlled .travis.yml file. In particular, the desired behavior (if .travis.yml has been created locally by a customer, and added to git) is for a Travis service to perform builds in a way that prevents public access to customer-specific secret environment data such as signing keys, access credentials, and API tokens. However, during the stated 8-day interval, secret data could be revealed to an unauthorized actor who forked a public repository and printed files during a build process.

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

Refblog.travis-ci.com/2021-09-13-bulletinRefnews.ycombinator.com/item?id=28523350Refnews.ycombinator.com/item?id=28524727Reftravis-ci.community/t/security-bulletin/12081Reftwitter.com/peter_szilagyi/status/1437646118700175360Reftwitter.com/peter_szilagyi/status/1437649838477283330Refblog.travis-ci.com/2021-09-13-bulletinRefnews.ycombinator.com/item?id=28523350Refnews.ycombinator.com/item?id=28524727Reftravis-ci.community/t/security-bulletin/12081

How CyberStrike helps

Frequently asked questions

What is CVE-2021-41077?

CVE-2021-41077 is a high-severity vulnerability. It was published on September 14, 2021 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2021-41077?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-41077?

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-2021-41077?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-41077 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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