Title: CaesarFTPD FTP Command Buffer Overflow Vulnerability
Severity: CRITICAL
Description:
CasesarFTP is a Windows FTP server from ACLogic.
By sending a long string of characters argumenting any of several FTP commands, an attacker can cause a stack overflow.
Reported vulnerable are the following commands:
HELP, USER, PASS, PORT, DELE, REST, RMD, and MKD. The poster notes that others may be vulnerable as well.
A remote user could supply a properly-structured argument to an affected command, with the input designed to exceed the maximum length of the input buffer (approximately 2000 characters). The values stored in this buffer can overflow onto the stack, potentially overwriting the calling functions' return address with values that can alter the program's flow of execution.
Properly exploited, this could grant the attacker 'SYSTEM' privilege (under NT/2000) or the ability to execute arbitrary code.
Affected Products:
- ACLogic CesarFTP 0.98.0 b
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