CVE-2021-21431
7.6 · HIGHOverview
CVE-2021-21431 is a high-severity vulnerability affecting mirahezebots channelmgnt. It was published on April 9, 2021 and has a CVSS 3.1 base score of 7.6 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.6, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
sopel-channelmgnt is a channelmgnt plugin for sopel. In versions prior to 2.0.1, on some IRC servers, restrictions around the removal of the bot using the kick/kickban command could be bypassed when kicking multiple users at once. We also believe it may have been possible to remove users from other channels but due to the wonder that is IRC and following RfCs, We have no POC for that. Freenode is not affected. This is fixed in version 2.0.1. As a workaround, do not use this plugin on networks where TARGMAX > 1.
Remediation
Check the references section for vendor advisories and patches from mirahezebots. Update channelmgnt to the latest patched version. 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.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| mirahezebots | channelmgnt | >= 0, < 2.0.1 | Affected |
References
Frequently Asked Questions
What is CVE-2021-21431?
CVE-2021-21431 is a high-severity vulnerability affecting mirahezebots channelmgnt. It was published on April 9, 2021 and has a CVSS 3.1 base score of 7.6 (HIGH).
How severe is CVE-2021-21431?
This vulnerability has a CVSS 3.1 base score of 7.6, 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-2021-21431?
Check the references section for vendor advisories and patches from mirahezebots. Update channelmgnt to the latest patched version. 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-2021-21431?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-21431 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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