1. Background informationToday we want to start with a PHP remote DOS vulnerability in 2015.04.03 (cve-2015-4024). See the link below for technical details, https://bugs.php.net/bug.php?id=69364. Because PHP parses the header of the body part for string stitching, and the stitching process repeats the copy character resulting in DOS. In fact, the vulnerability has other non-DOS utilization value, one of which is to bypass the current various cloud WAF
to run the script on the target's open port. You may want to look at some Nmap scripts, which are in: https://nmap.org/nsedoc/scripts/ .
See AlsoAlthough it is most popular, Nmap is not the only port scanner available, and, depending on the preferences, may not be the best. Here are some of the other alternatives included in the Kali:
Unicornscan
Hping3
Masscan
Amap
Metasploit Scanning Module
2.2 Identifying the Web application firewallA Web application firewa
impact, how to maintain real-time updates? constantly receive a large number of security warning log, but do not know how to do? by the third party vulnerability platform exposure site security risks, impossible to guard against? A large amount of chicken attacks on the site's page display is slow or can not open, powerless? Attack from the traditional web attacks across to the business scene, such as collision, crawl data, SMS interface abuse, etc., helpless?
Solution
1. Install the tool automake and Autoconf. Compile the source program: mycc. C.
#include
It should be noted that the macro used in mycc. C is from config. H, and config. H is generated by the tool (see the following article)
2. Run autoscan to generate Configure. Scan
[root@waf mypkg]# autoscan[root@waf mypkg]# lsautoscan.log configure.scan mycc.c[root@waf m
function. Macro Ns_log_function, used to record member functions, and macro Ns_log_function_noargs for recording static function information. Log_logic, the logical process of recording functions, corresponding to the macro ns_log_logic Log_all, record all the above mentioned information, no corresponding macro.There is also an unconditional log, the corresponding macro is Ns_log_uncondLet's use some of the above knowledge to get some interesting details about the first.cc simulation process.2.
Dog hitting: Cknife (C-knife) custom mode second-over-safe dog Disclaimer: This site provides security tools, programs (methods) may be offensive, it is only for security research and teaching, and is at your own risk! Related reading:
Cross-platform Chinese kitchen knife Cknife released
Cknife, cross-platform Chinese kitchen knife open source0 × 00 preface
Many of my friends mistakenly thought that she was only a cross-platform upgrade version of the kitchen knife and only had cross-platform f
such as the following prompt:
Build finished successfully (00:02:37)Leaving directory './ns-3.25 '
Configure WAFNext go to the ns-3.25 folder. For WAF configuration. WAF is a python-based, open-source compilation system, please search the relevant information by yourself.There are many parts of the official Wiki about WAF configuration, b
After all the system security defenses are completed, I am afraid SQL injection, cross-site attacks, and other web Application Layer defenses are left behind. This is also the most troublesome thing for the majority of webmasters.Security treasure Architecture Technical speculation and advanced network security defense"Explains one of the simplest high-performance defense methods. You can handle most of the attacks with slight modifications based on your own situation. But is everything okay?Fir
Status quo analysis:
Zhao Ming: website O M Manager
Two questions are raised in the video:
1. Use security protection solutions to prevent attacks.
2. When an attack occurs, the system can promptly trigger an alarm, block the attack, and record the hacker behavior characteristics.
The current website topology is as follows:
Through the video, Zhi Zhaoming's website was attacked by hackers and changed.
In the current website topology, there is only one Server Load balancer, which may be replace
behind the door witnessed what.In fact, I would like to teach the safety of the road, rather than infiltration of the technique.Refer to the online many kinds of existing PHP back door of the wording, in short thinking of a variety of wonderful and novelty, but the measurement of a good PHP backdoor is not just the code to see how much, how the dog, but a real scene based on a kind of adaptation, so, PHP back door this is an art.What happened when I connected the back doorSo what happened when
Upload Vulnerability
use some interfaces that can be uploaded to inject malicious code into the server and then access it through a URL to execute code
Example: Http://www.rona1do.top/upload ... (Nginx will execute 1.jpg as PHP code)
# File Upload Vulnerability Resolution location ^~/upload { root/opt/app/images; if ($request _file ~* (. *) \.php) { return 403; }}
4. SQL injection
use a non-filtered/non-audited user input attack method to let the app run S
handshake with both ends and negotiate the key, then do both sides plus decrypt and content forwarding.Cite a useful piece of content [1]A WAF applies filter rules on traffic in an"Application"Level (e.g. it tries to detect SQL injection attempts). This requires is the WAF sees the traffic, i.e. whatever SSL which may has happened on the client side must stop at the W
directory './ns-3.25 '
Configure WAFNext go to the ns-3.25 folder for the WAF configuration. WAF is a python-based, open-source compilation system, please search the relevant information by yourself.There are a lot of things about WAF configuration in the official wiki, but it's not necessary for my current development, so it's not listed here, so
Nearly a period of time, many traditional UTM manufacturers frequently released high-end products-first SonicWALL release 4G products, after the industry's eldest Fortinet thrown 26G of the top UTM. Some analysts pointed out that the emergence of high-performance UTM is not a long time, this is a long-term security manufacturers brewing. Because with the performance of new UTM products more and more high, the future security Gateway market pattern is
The header files imported before the program (also a series of header files combined with the module header files) are placed under ../build/debug/NS3.
First, we will introduce a simple method to allow examples and tests:$./WAF configure -- enable-examples -- enable-Tests$./WAF build
1. When build. py is run at one timeForbidden: $./build. pyAllowed: $./build. py -- enable-examples -- enable-Tests2. Run bu
Security Gateway (WSG) for network security products)
Web security gateway is a new type of network application security protection product developed on the basis of unified Threat Management Products. Provides more in-depth and comprehensive protection capabilities for Web Application Security. Protects against network viruses, SQL injections, cross-site attacks, malicious scripts, and other attacks. The function of WAF is very similar to that of
;
}
...
}
...
}
PS: Ngx_lua_waf firewall based on Lua-nginx-module
Project Address: Https://github.com/loveshell/ngx_lua_waf?utm_source=tuicoolutm_medium=referralRecommended Installation:
Recommend using lujit2.1 for LUA support
Ngx_lua if it is 0.9.2 above, it is recommended that the regular filter function be changed to ngx.re.find, matching efficiency will be increased by about three times times.
Instructions for use:
The Nginx inst
automate the process of creating a software product, including compiling the source cod E, packaging, testing, deployment and creating documentations. With MSBuild, it's possible to build Visual Studio projects and solutions without the Visual Studio IDE installed. MSBuild is available at no cost. [3] MSBuild is previously bundled with. NET Framework; Starting with Visual Studio 2013, however, it are bundled with Visual Studio instead. [4] MSBuild is a functional replacement for the NMAKE utili
Use Zabbix to monitor corporate firewalls through SNMP
The company uses the FortiGate 80C firewall, and now uses Zabbix to monitor its status through SNMP.
Add the -- with-net-snmp parameter to compile and install zabbix.
First, Enable SNMP on the firewall, and then add a host in Zabbix
References
Https://www.zabbix.com/documentation/2.2/manual/config/items/itemtypes/snmp
Use snmpwalk to obtain a series of SNMP strings
$ Snmpwalk-v 2c-c public 10.10.41.254
Find the MIB string to be monitored fr
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