Title: Cooolsoft PowerFTP Server Multiple Denial Of Service Vulnerability
Severity: HIGH
Description:
PowerFTP is a commercial FTP server for Microsoft Windows 9x/ME/NT/2000/XP operating systems. It is maintained by Cooolsoft.
Multiple instances of denial of service vulnerabilities exist in PowerFTP's FTP daemon. This is achieved by connecting to port 21 and submitting an unusally long string of arbitrary characters. It has been reported that this issue may also be triggered by issuing an excessively long FTP command of 2050 bytes or more.
Successful exploitation of this vulnerability could result in the loss of FTP services. A restart of the service may be required in order to gain normal functionality.
This issue may is most likely due to a buffer overflow. It seems that PowerFTP does not perform sufficient bounds checking of externally-supplied data. If this is the case, there is a possibility that arbitrary code may be executed on the vulnerable host. However, this has not yet been confirmed.
Affected Products:
- Cooolsoft PowerFTP 2.0.0 3
- Cooolsoft PowerFTP 2.10.0
References:
- Cooolsoft: PowerFTP Homepage
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