This article provides a detailed analysis of web memory vulnerabilities and its principles and prevention methods (file name detection vulnerabilities). For more information, see the previous article:
The backend obtains the server variables, many of which are passed by the client. It is no different from the common get and post methods. The following describes common vulnerability codes.
1. check the
There are only a few types of vulnerabilities, such as XSS, SQL injection, command execution, upload vulnerability, local inclusion, remote inclusion, permission bypass, information disclosure, cookie forgery, CSRF (cross-site request), and so on. These vulnerabilities are not just for the PHP language, this article simply describes how PHP effectively prevents these vu
Knowledge vulnerabilities are not terrible. What is terrible is human vulnerabilities. Today, I once again showed the vulnerability.
It is actually about MVC. I thought I had learned the design pattern and explored its connotation. Therefore, it is entirely wishful thinking to understand MVC. Ah, it hurts.
Fortunately, our teacher asked me to talk to me about this matter tonight. Otherwise, I guess I (we)
The Crosssite Scripting (cross-site scripting attack) in the OWASP Top 10 security threat allows an attacker to inject malicious script into the Web site through a browser. This vulnerability often occurs in Web applications where user input is required, and if the site has an XSS vulnerability, an attacker could send a malicious script to the user browsing the site, and can also exploit the vulnerability to steal SessionID, which is used to hijack th
Vulnerabilities include XSS, SQL injection, command execution, upload vulnerabilities, local inclusion, remote inclusion, Permission Bypass, information leakage, Cookie forgery, and csrf (cross-site request. These vulnerabilities are not only for PHP, but also for how PHP effectively prevents them.
1. XSS + SQL injection (detailed introduction to XSS attacks)
XSS
Common PHP vulnerabilities: Injection Vulnerability injection brings controllable user variables into database operations and changes the original SQL intention. For example, in the logic of registering a user, when detecting whether the user name exists, you can retrieve the user name submitted by the user to the database for query. If the user name is not properly filtered in the code logic, you can submit some special characters to complete the inj
Vulnerabilities include XSS, SQL injection, command execution, upload vulnerabilities, local inclusion, remote inclusion, Permission Bypass, information leakage, cookie forgery, and CSRF (cross-site request. These vulnerabilities are not only for PHP, but also for how PHP effectively prevents them.
1. xss + SQL injection (detailed introduction to xss attacks)
XSS
Do web development, we often do code to check, many times, we will spot some core functions, or often the logic of vulnerabilities. With the expansion of the technical team, the group's technology is increasingly mature. Common fool-type SQL injection vulnerabilities, and XSS vulnerabilities. will be fewer and less, but we will also find that some of the emerging
Identifies network security threats and vulnerabilities and Network Security Vulnerabilities
1. Social engineering attacks are an attack type that uses deception and tricks to persuade uninformed users to provide sensitive information or conduct behaviors against security rules. It is usually expressed by people, emails, and telephones.
2. Major Types of social engineering attacks include electronic spoof
is popular. At that time, almost all Websites stored on the website had vulnerabilities. At the moment, many platforms have disabled storage. In fact, the root cause is this. We get the file name and save it as the final generated file name. A good way is to randomly generate a file name + read extension. In this way, special characters can be entered, which are discarded or truncated during file storage.
This vulnerability can be exploited in the ph
Exploitation of various vulnerabilities and some search parameters
When it comes to vulnerabilities, the first thing you should mention is a bug that uploads the web.
"Hole net" loophole opened up the prologue of the file of loophole, other system on
The leaks are coming!
Vulnerability analysis of ASP Dynamic Network Forum
1, this loophole is not too serious, using the network forum people know, post dir
Website vulnerabilities no verification for specific sites vulnerabilities (weak passwords, SQL injection, and Arbitrary File Uploads)
P2p financial security: website vulnerabilities in multiple locations (weak passwords, SQL injection, and Arbitrary File Uploads)
Unexpected discovery http://acc.rxdai.com: 8585/EmployeeQuery/Login. aspx did not validate such as
Openssh/ntp/ftp vulnerabilities and opensshntpftp Vulnerabilities
Common reinforcement for these three vulnerabilities requires an official vulnerability upgrade package for the operating system. In this case, the following is not general:Openssh:
Modify the ssh version:Whereis ssh // view the ssh directoryCd to this directoryCp ssh. bak // back up sshSsh-V // vi
See the title of this article you will not be a tiger body earthquake it. Feel--it ' s imposible!,but it's so easy to get in ...We always hear "digging holes", "a certain company has a right to raise loopholes", we will ask "How do you know this is a loophole." How do you know where the leak is? "Of course it's easy to answer, because the bugs are in the code, but millions of lines of code who know where there are vulnerabilities. Well, what about thi
PHP common vulnerabilities: Common include vulnerabilities include LFI and RFI, that is, local file transfer Sion and remote file transfer Sion.
LFI
For LFI, many of them limit that the suffix must end with. php and Include ($ a. '. php.
So if we want to include our pictures, we need to cut off the. php
00 truncation. Gpc off php required
Truncation of long file names. I rarely succeeded in
Workaround:
Download the Silver Month Server tool, use the tool-> component Downloader download Isapi_rewrite, unzip it out.
Add the Isapi_rewrite.dll in the Isapi_rewrite as ISAPI, the name is Isapi_rewrite, this is pseudo static, did not install the
Download the vulnerability patch package, which is the item selected in the following figure, download open!
Replace the Httpd.ini in the Isapi_rewrite directory with the Httpd.ini in the patch package.
Or to ensure that the isapi_rewrite belo
It has always been a dream: How nice it would be to discover some vulnerabilities or bugs! So I am studying Computer blind and blind all day. What do I study? Study how to break through the firewall (the firewall here refers to a software-based personal firewall, and the hardware is not conditional .) Hey, you don't have to mention it. I did not have a white research, but I have even discovered common faults in most firewalls. This BUG can fool the fi
(SQL injection, XSS cross-site, Web page horse, upload vulnerability, privilege elevation Vulnerability, database vulnerability, source code leakage) and many other security tests. In order to effectively identify the site security vulnerabilities and pitfalls, to ensure the security of the target site.Our site penetration testing, with many years of actual combat experience, can effectively detect and discover the existence of the site
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