Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2009-0543

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.

Security Impact Summary

CVE-2009-0543 is a security vulnerability that . Impacting 1 product from proftpd organizations running these solutions should prioritize assessment and patching.

Historical Context

Originally identified in 2009, this vulnerability predates many modern security frameworks and practices. The vulnerability landscape of that era was characterized by different threat models and less mature defense mechanisms compared to contemporary standards.

Published

2009-02-12T16:30:00.297

Last Modified

2026-04-23T00:35:47.467

Status

Modified

Source

[email protected]

Severity

CVSSv2: 6.8 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

6.4

Weaknesses

Type: Primary
CWE-89

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	proftpd	proftpd	1.3.1	Yes

References

http://bugs.proftpd.org/show_bug.cgi?id=3173 ([email protected])
http://secunia.com/advisories/34268 ([email protected])
http://security.gentoo.org/glsa/glsa-200903-27.xml ([email protected])
http://www.debian.org/security/2009/dsa-1730 ([email protected])
http://www.mandriva.com/security/advisories?name=MDVSA-2009:061 ([email protected])
http://www.openwall.com/lists/oss-security/2009/02/11/4 ([email protected])
http://www.openwall.com/lists/oss-security/2009/02/11/5 ([email protected])
http://bugs.proftpd.org/show_bug.cgi?id=3173 (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/34268 (af854a3a-2127-422b-91ae-364da2661108)
http://security.gentoo.org/glsa/glsa-200903-27.xml (af854a3a-2127-422b-91ae-364da2661108)
http://www.debian.org/security/2009/dsa-1730 (af854a3a-2127-422b-91ae-364da2661108)
http://www.mandriva.com/security/advisories?name=MDVSA-2009:061 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2009/02/11/4 (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2009/02/11/5 (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For proftpd's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.