Core FTP/SFTP Server 1.2 contains a buffer overflow vulnerability that allows attackers to crash the service by supplying an excessively long string in the User domain field. Attackers can paste a malicious payload containing 7000 bytes of data into the domain configuration to trigger an application crash and deny service.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 4
http://www.coreftp.com/
disclosure@vulncheck.com
http://www.coreftp.com/server/download/archive/CoreFTPServer589.42.exe
disclosure@vulncheck.com
https://www.exploit-db.com/exploits/46371
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/core-ftp-sftp-server-denial-of-service-via…
disclosure@vulncheck.com