ActFax Import Users from File Function Remote Stack-Based Buffer Overflow Vulnerability
IntelliShield: Security Activity Bulletin
2014 March 05 21:01 GMT
2014 March 05 21:01 GMT
ActFax contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system. Updates are not available.
A vulnerability in ActFax (ActiveFax Server) version 4.3 could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system.
The vulnerability is due to insufficient bounds checks on user-supplied input while handling certain files. An attacker could exploit this vulnerability by convincing a user to open a specially crafted .csv which submits malicious content to the strcpy() function of the vulnerable software. An exploit could allow the attacker to trigger a stack-based buffer overflow condition, allowing an attacker to execute arbitrary code with elevated privileges on the targeted system.
Functional code that exploits this vulnerability is available as part of the Metasploit framework.
Users are advised not to open unsolicited email attachments. Users should verify that attachments are safe before opening them.
To exploit the vulnerability, the attacker may provide a file to the user and persuade the user to open or execute the file by using misleading language or instructions.
Administrators are advised to implement an intrusion prevention system (IPS) or intrusion detection system (IDS) to help detect and prevent attacks that attempt to exploit this vulnerability.
The vendor has not confirmed the vulnerability and software updates are not available.
The security vulnerability applies to the following combinations of products.
Security Activity Bulletin
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