Pablo FTP Server malformed username format string denial of service
| pablo-ftp-username-dos (10532) |  Medium Risk |
Description:
Pablo Software Solutions FTP Server is vulnerable to a denial of service attack, caused by improper validation of user-supplied authentication credentials. If a remote attacker attempts to log on to the FTP server with a username containing a format specifier, the attacker could cause the server to crash. It may be possible for an attacker to exploit this vulnerability to execute code on the system.
Platforms Affected:
- Pablo Software Solutions, Pablo FTP Server 1.2
- Pablo Software Solutions, Pablo FTP Server 1.3
- Pablo Software Solutions, Pablo FTP Server 1.5
Remedy:
Upgrade to the latest version of Pablo FTP Server (1.51 or later), available from Pablo Software Solutions Web site. See References.
Consequences:
Denial of Service
References:
- iDEFENSE Security Advisory 11.04.02a, Pablo FTP Server DoS Vulnerability at http://www.idefense.com/intelligence/vulnerabilities/display.php?id=42.
- Pablo Software Solutions Web site, FTP Server at http://www.pablovandermeer.nl/ftp_server.html.
- BID-6099: Pablo Software Solutions FTP Server Format String Vulnerability
- CVE-2002-1244: Format string vulnerability in Pablo FTP Server 1.5, 1.3, and possibly other versions, allows remote attackers to cause a denial of service and possibly execute arbitrary code via format strings in the USER command.
- OSVDB ID: 4996: Pablo FTP Server Username Format String
Reported:
Nov 04, 2002
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