![]() ![]() For exploitation, the attacker must upload a sendmail.cf file as an email attachment, and inject the sendmail.cf filename with the -C option within the "Options > Personal Informations > Email Address" setting. CVE-2010-1637 : The Mail Fetch plugin in SquirrelMail 1.4.20 and earlier allows remote authenticated users to bypass firewall restrictions and use SquirrelMail as a proxy to scan internal networks via a modified POP3 port number. Hence, if the target server uses sendmail and SquirrelMail is configured to use it as a command-line program, it's possible to trick sendmail into using an attacker-provided configuration file that triggers the execution of an arbitrary command. The problem is in -f$envelopefrom within the sendmail command line. squirrelmail-stable squirrelmail-users RE: SM-DEVEL Received From. Summary Files Reviews Support Mailing Lists Tickets Current Development Branch (1.5) Feature Requests. The use of escapeshellcmd() is not correct in this case since it doesn't escape whitespaces, allowing the injection of arbitrary command parameters. Brought to you by: jangliss, jervfors, kink, pdontthink. Last Release: 1.0. > Is it OK to use X-Squirrel-User, X-Squirrel-IP and X-Squirrel-Proxy > headers and check for passprase in. ![]() Summary Files Reviews Support Mailing Lists Tickets Current Development Branch (1.5) Feature Requests Current Stable Branch (1.4) Bugs. users to skip the SquirrelMail login page. Brought to you by: jangliss, jervfors, kink, pdontthink. The problem is in the Deliver_ with the initStream function that uses escapeshellcmd() to sanitize the sendmail command before executing it. Last Release: 3.0 on Allows externally authenticated (using HTTP authentication or a single sign-on system) users to skip the SquirrelMail login page. It's possible to exploit this vulnerability to execute arbitrary shell commands on the remote server. The user that the web server runs as and the owner of the SquirrelMail scripts may be different (e.g. ![]() Successful exploitation requires user interaction by the victim. The default preference file and the default data directory must be readable and writable by the user that the web server runs as. SquirrelMail 1.4.22 (and other versions before 20170427_0200-SVN) allows post-authentication remote code execution via a sendmail.cf file that is mishandled in a popen call. No form of authentication is required for exploitation. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |