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| | CMailServer Buffer Overflow 'CMailCOM.dll' Lets Remote Users Execute Arbitrary Code |
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Categorie: Vulnerability
Posted: 2004-11-30 by ReCall
Views: 404
Source: Click here
| Current Rating: Not rated
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| | Details |
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Description: Tan Chew Keong of SIG^2 reported several vulnerabilities in CMailServer. A remote user can execute arbitrary code on the target user's system. A remote authenticated user can inject SQL commands and conduct cross-site scripting attacks.
It is reported that there is a buffer overflow in CMailCOM.dll in the attachment download processing. A remote user may be able to cause arbitrary code to be executed on the target user's system.
It is also reported that the software does not properly validate user-supplied input in certain scripts.
The 'admin.asp' script does not filter HTML code from user-supplied input when displaying a user's personal information. A remote user can cause arbitrary scripting code to be executed by the target user's browser. The code will originate from the site running the CMailServer software and will run in the security context of that site. As a result, the code will be able to access the target user's cookies (including authentication cookies), if any, associated with the site, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
It is also reported that 'fdelmail.asp' allows a remote authenticated user to inject SQL commands to delete a target user's mail metadata.
It is also reported that 'addressc.asp' allows a remote authenticated user to inject SQL commands to delete a target user's address book contacts.
The vendor was notified on November 13, 2004.
The original advisory is available at:
http://www.security.org.sg/vuln/cmailse rver52.html
Impact: A remote user can execute arbitrary code on a target user's system.
A remote authenticated user can inject SQL commands to delete a target user's mail metadata or address book contacts.
A remote authenticated user can access the target user's cookies (including authentication cookies), if any, associated with the site running the CMailServer software, access data recently submitted by the target user via web form to the site, or take actions on the site acting as the target user.
Solution: The vendor has issued a fixed version (5.2.1).
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