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CVE-2021-40348

8.8 · HIGH

Spacewalk 2.10, and derivatives such as Uyuni 2021.08, allows code injection.

Published Nov 1, 2021CWE-94EPSS 1.80%

Overview

CVE-2021-40348 is a high-severity vulnerability. It was published on November 1, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Spacewalk 2.10, and derivatives such as Uyuni 2021.08, allows code injection. rhn-config-satellite.pl doesn't sanitize the configuration filename used to append Spacewalk-specific key-value pair. The script is intended to be run by the tomcat user account with Sudo, according to the installation setup. This can lead to the ability of an attacker to use --option to append arbitrary code to a root-owned file that eventually will be executed by the system. This is fixed in Uyuni spacewalk-admin 4.3.2-1.

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

Refwww.openwall.com/lists/oss-security/2021/10/28/4GitHubgithub.com/uyuni-project/uyuni/commit/790c7388efac6923c5475e01c1ff718dffa9f052Refwww.openwall.com/lists/oss-security/2021/10/28/4GitHubgithub.com/uyuni-project/uyuni/commit/790c7388efac6923c5475e01c1ff718dffa9f052

How CyberStrike helps

Frequently asked questions

What is CVE-2021-40348?

CVE-2021-40348 is a high-severity vulnerability. It was published on November 1, 2021 and has a CVSS 3.1 base score of 8.8 (HIGH).

How severe is CVE-2021-40348?

This vulnerability has a CVSS 3.1 base score of 8.8, 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-2021-40348?

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-2021-40348?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-40348 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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