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CVE-2019-15642

8.8 · HIGH

rpc.cgi in Webmin through 1.920 allows authenticated Remote Code Execution via a crafted object name because unserialise_variable makes an eval call.

Published Aug 26, 2019CWE-94EPSS 34.80%

Overview

CVE-2019-15642 is a high-severity vulnerability. It was published on August 26, 2019 and has a CVSS 3.0 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.0 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

rpc.cgi in Webmin through 1.920 allows authenticated Remote Code Execution via a crafted object name because unserialise_variable makes an eval call. NOTE: the Webmin_Servers_Index documentation states "RPC can be used to run any command or modify any file on a server, which is why access to it must not be granted to un-trusted Webmin users."

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

Refdoxfer.webmin.com/Webmin/Webmin_Servers_IndexGitHubgithub.com/webmin/webmin/blob/ab5e00e41ea1ecc1e24b8f8693f3495a0abb1aed/rpc.cgi#L26-L37GitHubgithub.com/webmin/webmin/commit/df8a43fb4bdc9c858874f72773bcba597ae9432cRefwww.calypt.com/blog/index.php/authenticated-rce-on-webmin/Refdoxfer.webmin.com/Webmin/Webmin_Servers_IndexGitHubgithub.com/webmin/webmin/blob/ab5e00e41ea1ecc1e24b8f8693f3495a0abb1aed/rpc.cgi#L26-L37GitHubgithub.com/webmin/webmin/commit/df8a43fb4bdc9c858874f72773bcba597ae9432cRefwww.calypt.com/blog/index.php/authenticated-rce-on-webmin/

How CyberStrike helps

Frequently asked questions

What is CVE-2019-15642?

CVE-2019-15642 is a high-severity vulnerability. It was published on August 26, 2019 and has a CVSS 3.0 base score of 8.8 (HIGH).

How severe is CVE-2019-15642?

This vulnerability has a CVSS 3.0 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2019-15642?

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-2019-15642?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2019-15642 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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