Title: MDaemon WorldClient Folder Creation Buffer Overflow Vulnerability
Severity: CRITICAL
Description:
MDaemon is an integrated mail transport agent, webmail, and mail anti-virus package. It is available for Microsoft Windows operating systems.
A problem with the package could make it possible for a remote user to execute arbitrary code. The problem is in the handling of long data strings.
It may be possible for a remote user to take advantage of a buffer overflow in the MDaemon software package. The WorldClient.cgi program packaged with MDaemon does not properly check bounds on user-supplied data. During the process of creating a folder with a long name, it is possible to exploit a buffer overflow in the CGI that could result in the overwriting of process memory, and execution of attacker-supplied instructions.
It should be noted that exploitation of this vulnerability will result in the execution of code with SYSTEM privileges on a Windows system. Additionally, an attacker exploiting this vulnerability must be authenticated through a regular account on MDaemon system. Exploitation of this vulnerability will result in a remote attacker gaining local administrative privileges on a vulnerable system.
It has been confirmed by SecurityFocus staff that this vulnerability may be exploited both via a web browser, or a connection through a client program such as netcat or telnet.
Affected Products:
- Deerfield MDaemon 5.0.0.0
- Deerfield MDaemon 5.0.1
- Deerfield MDaemon 5.0.2
- Deerfield MDaemon 5.0.3
- Deerfield MDaemon 5.0.4
- Deerfield MDaemon 5.0.5
- Deerfield MDaemon Pro 5.0.0
- Deerfield Worldclient Pro 5.0.0
References:
- Deerfield: MDaemon Product Page
- Deerfield: WorldClient Home Page
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