PT-2013-69: Denial of Service in Serv-U File Server
(PT-2013-69) Positive Technologies Security Advisory
Denial of Service in Serv-U File Server
Serv-U File Server
Version: 188.8.131.52 and earlier
Severity level: Medium
Impact: Denial of Service
Access Vector: Remote
Base Score: 5.0
CVE: not assigned
Serv-U File Server is a Windows and Linux based multi-protocol FTP, HTTP and SFTP file server.
The specialists of the Positive Research center have detected a Denial of Service vulnerability in Serv-U File Server.
Handling HTTP request with a recursive variable causes the application to enter an infinite loop, resulting in Denial of Service.
How to fix
Update your sofware up to the latest version
03.10.2013 - Vulnerability details were sent to CERT
19.02.2014 - Vendor releases fixed version and details
31.07.2014 - Public disclosure
The vulnerability was detected by Sergey Bobrov, Positive Research Center (Positive Technologies Company)
Reports on the vulnerabilities previously discovered by Positive Research:
About Positive Technologies
Positive Technologies is a leading provider of vulnerability assessment, compliance management and threat analysis solutions to more than 1,000 global enterprise clients. Our solutions work seamlessly across your entire business: securing applications in development; assessing your network and application vulnerabilities; assuring compliance with regulatory requirements; and blocking real-time attacks. Our commitment to clients and research has earned Positive Technologies a reputation as one of the foremost authorities on SCADA, Banking, Telecom, Web Application and ERP security, and distinction as the #1 fastest growing Security and Vulnerability Management firm in 2012, as shown in an IDC report*. To learn more about Positive Technologies please visit www.ptsecurity.com
*Source: IDC Worldwide Security and Vulnerability Management 2013-2017 Forecast and 2012 Vendor Shares, doc #242465, August 2013. Based on year-over-year revenue growth in 2012 for vendors with revenues of $20M+