Winmail Server 4.2 Cross Site Scripting

Type packetstorm
Reporter Jing Wang
Modified 2015-08-30T00:00:00


                                            `*Winmail Server 4.2 Reflected XSS (Cross-site Scripting) Web Application  
0-Day Security Bug*  
Exploit Title: Winmail Server badlogin.php &lid parameter Reflected XSS Web  
Security Vulnerability  
Product: Winmail Server  
Vendor: Winmail Server  
Vulnerable Versions: 4.2 4.1  
Tested Version: 4.2 4.1  
Advisory Publication: August 24, 2015  
Latest Update: August 30, 2015  
Vulnerability Type: Cross-Site Scripting [CWE-79]  
CVE Reference:  
Impact CVSS Severity (version 2.0):  
CVSS v2 Base Score: 4.3 (MEDIUM) (AV:N/AC:M/Au:N/C:N/I:P/A:N) (legend)  
Impact Subscore: 2.9  
Exploitability Subscore: 8.6  
CVSS Version 2 Metrics:  
Access Vector: Network exploitable; Victim must voluntarily interact with  
attack mechanism  
Access Complexity: Medium  
Authentication: Not required to exploit  
Impact Type: Allows unauthorized modification  
Discover and Reporter: Wang Jing [School of Physical and Mathematical  
Sciences (SPMS), Nanyang Technological University (NTU), Singapore]  
*Suggestion Details:*  
*(1) Vendor & Product Description:*  
Winmail Server  
*Product & Vulnerable Versions:*  
Winmail Server  
4.2 4.1  
*Vendor URL & Download:*  
Product can be obtained from here,  
*Product Introduction Overview:*  
"Winmail Server is an enterprise class mail server software system offering  
a robust feature set, including extensive security measures. Winmail Server  
supports SMTP, POP3, IMAP, Webmail, LDAP, multiple domains, SMTP  
authentication, spam protection, anti-virus protection, SSL security,  
Network Storage, remote access, Web-based administration, and a wide array  
of standard email options such as filtering, signatures, real-time  
monitoring, archiving, and public email folders. Winmail Server can be  
configured as a mail server or gateway for ISDN, ADSL, FTTB and cable modem  
networks, beyond standard LAN and Internet mail server configurations."  
*(2) Vulnerability Details:*  
Winmail Server web application has a computer security problem. Hackers can  
exploit it by reflected XSS cyber attacks. This may allow a remote attacker  
to create a specially crafted request that would execute arbitrary script  
code in a user's browser session within the trust relationship between  
their browser and the server.  
Several other similar products 0-day vulnerabilities have been found by  
some other bug hunter researchers before. Winmail Server has patched some  
of them. "scip AG was founded in 2002. We are driven by innovation,  
sustainability, transparency, and enjoyment of our work. We are completely  
self-funded and are thus in the comfortable position to provide completely  
independent and neutral services. Our staff consists of highly specialized  
experts who focus on the topic information security and continuously  
further their expertise through advanced training". Scip has recorded  
similar XSS bugs, such as scipID 26980.  
*(2.1) *The code flaw occurs at "&lid" parameter in "badlogin.php" page. In  
fact, CVE-2005-3692 mentions that "&retid" parameter in "badlogin.php" page  
is vulnerable to XSS attacks. But it does not mention "&lid" parameter".  
The scipID of the bug is 26980. Bugtraq (SecurityFocus) ID is 15493. OSVDB  
ID is 20926.  
Jing Wang,  
Division of Mathematical Sciences (MAS),  
School of Physical and Mathematical Sciences (SPMS),  
Nanyang Technological University (NTU), Singapore.