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CVE-2010-4221

10.0 · HIGH

Multiple stack-based buffer overflows in the pr_netio_telnet_gets function in netio.c in ProFTPD before 1.3.3c allow remote attackers to execute arbitrary code via vectors involving a TELNET IAC es…

Published Nov 9, 2010proftpdCWE-119EPSS 91.30%

Overview

CVE-2010-4221 is a high-severity vulnerability affecting proftpd proftpd. It was published on November 9, 2010 and has a CVSS 2.0 base score of 10.0 (HIGH).

This vulnerability has a CVSS 2.0 base score of 10.0, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Multiple stack-based buffer overflows in the pr_netio_telnet_gets function in netio.c in ProFTPD before 1.3.3c allow remote attackers to execute arbitrary code via vectors involving a TELNET IAC escape character to a (1) FTP or (2) FTPS server.

Remediation

Check the references section for vendor advisories and patches from proftpd. Update proftpd 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

VendorProductVersionsStatus

References

Refbugs.proftpd.org/show_bug.cgi?id=3521Reflists.fedoraproject.org/pipermail/package-announce/2010-November/050687.htmlReflists.fedoraproject.org/pipermail/package-announce/2010-November/050703.htmlReflists.fedoraproject.org/pipermail/package-announce/2010-November/050726.htmlRefsecunia.com/advisories/42052Refsecunia.com/advisories/42217Refwww.mandriva.com/security/advisories?name=MDVSA-2010:227Refwww.proftpd.org/docs/NEWS-1.3.3cRefwww.securityfocus.com/bid/44562Refwww.vupen.com/english/advisories/2010/2941

How CyberStrike helps

Frequently asked questions

What is CVE-2010-4221?

CVE-2010-4221 is a high-severity vulnerability affecting proftpd proftpd. It was published on November 9, 2010 and has a CVSS 2.0 base score of 10.0 (HIGH).

How severe is CVE-2010-4221?

This vulnerability has a CVSS 2.0 base score of 10.0, 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-2010-4221?

Check the references section for vendor advisories and patches from proftpd. Update proftpd 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-2010-4221?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2010-4221 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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