mdm bypass

Directory0X01 Client Authentication Bypass (JavaScript extension detection)0x02 server-side authentication bypass (HTTP request packet detection) -Content-type (Mime type) detection 0X03 server-side authentication bypass (extension detection) -blacklist detection -White list detection -. htaccess file attack 0x04 server-side va

Tags: database 16 sch A column PNG technology SCI Class1. Bypass spaces (Comment breaks/* */): The most basic way to bypass, replace spaces with comments: /* */ 2. Parentheses around spaces: If the spaces are filtered, the parentheses are not filtered and can be bypassed with parentheses. In MySQL, parentheses are used to surround the subquery. Therefore, any statement that can calculate the result can be

Tags: http io ar using SP file div on logBystanderBlog: http://leaver.meForum: French ForumDirectory1. Case-insensitive Bypass2. Simple code Bypass3. Comment Bypass4. Separating override Bypass5.Http parametric contamination (HPP)6. Using the logical operator Or/and bypass7. Compare operator substitution8. Replace with function function9. Blinds without OR AND and10. Parentheses11. Buffer Overflow Bypass1. Case-insensitive BypassThis is very familiar to everyone, for some of the too garbage WAF

1. Case-insensitive BypassThis is very familiar to everyone, for some of the too garbage WAF effect is significant, such as blocking the union, then the use of Union and so on bypass.2. Simple code Bypasssuch as the WAF detection keyword, then we let him not detect it. For example, to test the union, then we use%55 that is U 16 encoding to replace U,union written%55nion, combined with case can also bypass s

Waf xss bypass posture Due to the wide use of application firewalls, it is necessary to test WAF's ability to defend against xss attacks. Of course, all the experiments are to prove that the vendor must eliminate the vulnerability from the root cause, and cannot lie on the WAF without any worries.Some popular WAF such as F5 Big IP, Imperva Incapsula, AQTRONIX WebKnight, PHP-IDS, Mod-Security, Sucuri, QuickDefense, and Barracuda WAF are all tested.

0x00 Overview 6666666 0X01 Client detection Bypass (JS detection) Detection principle On the client side, the following JavaScript code is passed to detect whether a user-submitted file is legitimate: 1 How to determine whether the client JS detection Bypass method Because the JS program used to verify the legality of the file is in our cli

options at the same time, the single quotes will be escaped to '. Double quotes, backslashes, and NULL characters are not escaped. How to get its value see Ini_get ().Mysql_real_escape_stringEscape special characters in strings used in SQL statements: \x00, \ n, \ r, \, ', ', \x1aAddslashes ()Returns a string that is preceded by a pre-defined character with a backslash, a predefined character: ', ', \, NULLRead a lot of PHP Web site in the anti-SQL injection is still using ddslashes and Str_rep

This time, the filter of the injected space lattice① Comment Bypass SpaceWe need a space when we look at user ()Such as:Select User ();　　Then we use/**/To bypass② Plus bypass spaces (not recommended for use except for individual cases)In fact, the space can be replaced with a +Such as:Select+user ();Although this allows you to query the dataBut carefully found th

Affected Products:Vulnerability Description:Due to the php.ini settings in the php5.3.x version Request_order the default value is GP, resulting in discuz! 6.x/7.x global Variable Defense Bypass vulnerability include/global.func.php code: function daddslashes ($string, $force = 0) {!defined (' MAGIC_QUOTES_GPC ') define (' MAGIC_QUOTES_GPC ', GET_MAGIC_QUOTES_GPC ()); MAGIC_QUOTES_GPC | | $force) {if (Is_array ($string)) {foreach ($string as $key = =

1, HPP http parameter Pollution http parameter pollution means that the server side usually does some processing when submitting two parameters of the same key value in the URL. For example, Apache is going to take the last argument, for example: user.php?id=111id=222 If you output a $_get array, the ID's value will only take 222, i.e. the extra value submitted on the URL overrides the previous value. 2, a CTF topic http://drops.wooyun.org/tips/17248 About the injected WAF

Tags: div upload vulnerability A pre pass vulnerability rom comparison bufferone.%0 0 truncation%00 truncation is a very classic gesture commonly used in upload vulnerabilities, and can be used to bypass SQL injection. In the WAF layer, after receiving the parameter ID, encounter%00 truncation, only get to id=1, unable to get to the back of the harmful parameter input;　　http://host/sql.aspx?id=1%00and 1=2 Union select 1,2,column_name from Information_

Tags:;; Hacker SQL Sch error security different development lineWeb hacker always survive in the constant struggle with WAF, manufacturers constantly filter, Hacker constantly bypass. WAF Bypass is an eternal topic, many friends also summed up a lot of strange tricks. Well, today I'm here to do a little literacy. First, what is the WAF bypass? A WAF, simply state

Shellcode The first example of learning.The following is a command-line program written in C that examines the numbers entered by the user and determines whether they are legitimate. Here the user's input is placed in the function buffer, but the program does not check the length of the buffer, leaving a loophole. This can be used to bypass the digital prosecution, so that any input will be judged to be correct.In validate_serial , the address of theD

bugku:http://120.24.86.145:9009/19.phpHaven't finished reading the source code, I have directly added a password[]=1 result to get flag. Then look at the source code I do not understand why you can get the source code. Really, don't believe you see.1PHP2$flag ="Flag";3 4 if(Isset ($_get['Password'])) {5 if(Ereg ("^[a-za-z0-9]+$", $_get['Password']) ===FALSE)6Echo'You password must be alphanumeric';7 Else if(Strpos ($_get['Password'],'--') !==FALSE)8Die'Flag:'. $flag);9 ElseTenEcho'Invalid Passwo

HttpRequest ();} return _httprequest;}/** * Trust HTTPS * * /public void Trusthpps () t Hrows Exception {httpsurlconnection. Setdefaulthostnameverifier (New Nullhostnameverifier ()); Sslcontext sc = sslcontext.getinstance ("TLS"); Sc.init (NULL, httprequest.tr

What is NX Bit? Its a exploit mitigation technique which makes certain areas of memory non executable and makes an executable area, non w Ritable. Example:data, stack and heap segments is made non executable while the text segment is made non writable. List the header information for an elf programReadelf-l Vuln How to bypass NX bit and achieve arbitrary code execution? NX bit can is bypassed using an attack technique called "retu

implementation is more complex. The general process is to call the __gi___fortify_fail function first, __gi___fortify_fail call the __libc_message function, __libc_message the last call Backtrace_and_maps and _ _gi_abort function, generate SIGABRT signal, and through __gi___libc_secure_getenv according to the system environment variables to decide whether to produce Coredump file, __gi_abort execution to the last Call _exit, program exit.On the origin of the name of Canary, I found an interesti

Label:Can release py over version 5.3 #!/usr/bin/env python """ Copyright (c) 2006-2014 sqlmap developers (http://sqlmap.org/) See the file ‘doc/COPYING‘ for copying permission """ from lib.core.enums import PRIORITY __priority__ = PRIORITY.LOW def dependencies(): pass def tamper(payload, **kwargs): """ Replaces space character (‘ ‘) with comments ‘/*|--|*/‘ Tested against: * Microsoft SQL Server 2005 * MySQL 4, 5.0 and 5.5 * Oracle 10g * Pos

0x01 backgroundPHP programmers will inevitably use some character substitution functions (str_replace), inverse functions (stripslashes) in the development process, but these functions will bypass global defenses and cause SQL injection vulnerabilities if they are used improperly.0x03 Vulnerability Analysis Str_replace function error usageThe first case is when the program is written using the Str_replace function to replace the single quotation marks

Label:0x01 backgroundToday's web programs basically have a global filter for SQL injection, like PHP to open the GPC or on the global file common.php using the Addslashes () function to filter the received parameters, especially single quotes. In the same article, we need to find some encoding and decoding functions to bypass the global protection, this article describes the case of Base64decode ().The loophole comes from dark clouds: http://www.wooyu