netMailshar Webmail Service Error Message Username Enumeration

2005-04-20T13:06:32
ID OSVDB:15723
Type osvdb
Reporter Dr_insane(dr_insane@pathfinder.gr)
Modified 2005-04-20T13:06:32

Description

Vulnerability Description

netMailshar Professional Edition contains a flaw that may lead to an unauthorized information disclosure.  The issue is triggered when an attacker attempts to log into the system and receives varying error messages with each username attempt, disclosing whether the username is valid or not, resulting in a loss of confidentiality.

Solution Description

Currently, there are no known upgrades, patches, or workarounds available to correct this issue.

Short Description

netMailshar Professional Edition contains a flaw that may lead to an unauthorized information disclosure.  The issue is triggered when an attacker attempts to log into the system and receives varying error messages with each username attempt, disclosing whether the username is valid or not, resulting in a loss of confidentiality.

Manual Testing Notes

Valid username: "Invalid Password Go back and try again!!"

Invalid username: "Invalid Login Go back and try again!!"

References:

Vendor URL: http://www.pppindia.com/intl/netmailshar/ Secunia Advisory ID:15038 Related OSVDB ID: 15722 Other Advisory URL: http://osvdb.org/ref/15/1572x-netmailshar.txt Bugtraq ID: 13296