Phorum violation.php3 Arbitrary Email Relay Vulnerability
BID:2272
Info
Phorum violation.php3 Arbitrary Email Relay Vulnerability
| Bugtraq ID: | 2272 |
| Class: | Input Validation Error |
| CVE: | |
| Remote: | Yes |
| Local: | No |
| Published: | Jan 01 2000 12:00AM |
| Updated: | Jan 01 2000 12:00AM |
| Credit: | This vulnerability was first announced to Bugtraq by Max Vision <[email protected]> on January 6, 2000, and was originally discovered by Jfs <[email protected]> . |
| Vulnerable: |
Brian Moon Phorum 3.0.7 |
| Not Vulnerable: | |
Discussion
Phorum violation.php3 Arbitrary Email Relay Vulnerability
Phorum is a freely available, open source package originally written by Brian Moon. The package is designed to add enhanced features to a web page, allowing users to interact through bulletin board style chats forums and discussions.
A problem with the Phorum package could allow remote users to arbitrarily relay email. Due to the way violation.php3 handles URL's as arguments, it is possible to create a custom crafted URL request to the script which will allow a remote user to send email through the hosts MTA. This email will then be delivered to the specified person with the appearance of coming from the web host. This problem makes it possible for a user with malicious intentions to socially engineer, mailbomb, or spam from the web host, and potentially get the host blacklisted in one of such lists.
Phorum is a freely available, open source package originally written by Brian Moon. The package is designed to add enhanced features to a web page, allowing users to interact through bulletin board style chats forums and discussions.
A problem with the Phorum package could allow remote users to arbitrarily relay email. Due to the way violation.php3 handles URL's as arguments, it is possible to create a custom crafted URL request to the script which will allow a remote user to send email through the hosts MTA. This email will then be delivered to the specified person with the appearance of coming from the web host. This problem makes it possible for a user with malicious intentions to socially engineer, mailbomb, or spam from the web host, and potentially get the host blacklisted in one of such lists.
Exploit / POC
Phorum violation.php3 Arbitrary Email Relay Vulnerability
This vulnerability may be exploited requesting a URL of:
http://some.host.com/[email protected]&ForumName=text_to_spam
Where [email protected] is the destination of the mail, and text_to_spam is the text to appear in the body of the mail.
This vulnerability may be exploited requesting a URL of:
http://some.host.com/[email protected]&ForumName=text_to_spam
Where [email protected] is the destination of the mail, and text_to_spam is the text to appear in the body of the mail.
Solution / Fix
Phorum violation.php3 Arbitrary Email Relay Vulnerability
Solution:
Upgrade available:
Brian Moon Phorum 3.0.7
Solution:
Upgrade available:
Brian Moon Phorum 3.0.7
-
Brian Moon Phorum 3.2.11
http://phorum.sourceforge.net/downloads/phorum-3.2.11.tar.gz
References
Phorum violation.php3 Arbitrary Email Relay Vulnerability
References:
References: