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CVE-2023-30630

7.1 · HIGH

Dmidecode before 3.5 allows -dump-bin to overwrite a local file.

Published Apr 13, 2023CWE-23EPSS 0.51%

Overview

CVE-2023-30630 is a high-severity vulnerability. It was published on April 13, 2023 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Dmidecode before 3.5 allows -dump-bin to overwrite a local file. This has security relevance because, for example, execution of Dmidecode via Sudo is plausible. NOTE: Some third parties have indicated the fix in 3.5 does not adequately address the vulnerability. The argument is that the proposed patch prevents dmidecode from writing to an existing file. However, there are multiple attack vectors that would not require overwriting an existing file that would provide the same level of unauthorized privilege escalation (e.g. creating a new file in /etc/cron.hourly).

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

Refgit.savannah.nongnu.org/cgit/dmidecode.git/commit/?id=6ca381c1247c81f74e1ca4e7706f70bdda72e6f2Refgit.savannah.nongnu.org/cgit/dmidecode.git/commit/?id=d8cfbc808f387e87091c25e7d5b8c2bb348bb206GitHubgithub.com/adamreiser/dmiwriteReflists.nongnu.org/archive/html/dmidecode-devel/2023-03/msg00003.htmlRefgit.savannah.nongnu.org/cgit/dmidecode.git/commit/?id=6ca381c1247c81f74e1ca4e7706f70bdda72e6f2Refgit.savannah.nongnu.org/cgit/dmidecode.git/commit/?id=d8cfbc808f387e87091c25e7d5b8c2bb348bb206GitHubgithub.com/adamreiser/dmiwriteReflists.nongnu.org/archive/html/dmidecode-devel/2023-03/msg00003.html

How CyberStrike helps

Frequently asked questions

What is CVE-2023-30630?

CVE-2023-30630 is a high-severity vulnerability. It was published on April 13, 2023 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2023-30630?

This vulnerability has a CVSS 3.1 base score of 7.1, 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-2023-30630?

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-2023-30630?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-30630 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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