Description
A stack-based buffer overflow vulnerability exists in ActFax Server version 5.01. The server's RAW protocol interface fails to safely process user-supplied data in @F506 fax header fields due to insecure usage of strcpy. Remote attackers can exploit this vulnerability by sending specially crafted @F506 fields, potentially leading to arbitrary code execution. Successful exploitation requires network access to TCP port 4559 and does not require authentication.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality (Vulnerable System)
High
Integrity (Vulnerable System)
High
Availability (Vulnerable System)
High
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
Affected products
- ActFax Communication / ActFax Server5.01 – 5.01
References
- MISChttp://www.actfax.com/
- MISChttps://web.archive.org/web/20130212065755/http://www.pwnag3.com/2013/02/actfax-raw-server-exploit.html
- EXPLOIThttps://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/misc/actfax_raw_server_bof.rb
- EXPLOIThttps://www.exploit-db.com/exploits/24467
- VENDOR_ADVISORYhttps://www.vulncheck.com/advisories/actfax-raw-server-buffer-overflow