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CVE-2009-0543

6.8 · MEDIUM

ProFTPD Server 1.3.1, with NLS support enabled, allows remote attackers to bypass SQL injection protection mechanisms via invalid, encoded multibyte characters, which are not properly handled in (1…

Published Feb 12, 2009proftpdCWE-89EPSS 15.77%

Overview

CVE-2009-0543 is a medium-severity vulnerability affecting proftpd proftpd. It was published on February 12, 2009 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

ProFTPD Server 1.3.1, with NLS support enabled, allows remote attackers to bypass SQL injection protection mechanisms via invalid, encoded multibyte characters, which are not properly handled in (1) mod_sql_mysql and (2) mod_sql_postgres.

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=3173Refsecunia.com/advisories/34268Refsecurity.gentoo.org/glsa/glsa-200903-27.xmlRefwww.debian.org/security/2009/dsa-1730Refwww.mandriva.com/security/advisories?name=MDVSA-2009:061Refwww.openwall.com/lists/oss-security/2009/02/11/4Refwww.openwall.com/lists/oss-security/2009/02/11/5Refbugs.proftpd.org/show_bug.cgi?id=3173Refsecunia.com/advisories/34268Refsecurity.gentoo.org/glsa/glsa-200903-27.xml

How CyberStrike helps

Frequently asked questions

What is CVE-2009-0543?

CVE-2009-0543 is a medium-severity vulnerability affecting proftpd proftpd. It was published on February 12, 2009 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

How severe is CVE-2009-0543?

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2009-0543?

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-2009-0543?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-0543 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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