Impact: URL Redirection, Website Defacement, Content Modification, Phishing Attacks (Injecting a crafted Fake Login portals) HTML injections are less dangerous than XSS but they may still be used for malicious purposes. The delivery mechanisms are exactly the same but the injected content is pure HTML tags, instead of scripts like in the case of XSS. HTML Injection (HyperText Markup Language injections) are vulnerabilities that are very similar to XSS attack.
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It is a rare case vulnerability, Command injection occurs only when the web application code includes operating system call and user input is used in the call. OS Command Injection or shell injection is a web security vulnerability that allows a remote attacker to execute arbitrary Operating System (OS) level shell commands on the server that is running an application. Impact: Authentication Bypass, Privilege Escalation, Information Disclosure. They can gain permissions and modify the contents of the LDAP tree. The attacker injects LDAP (Lightweight Directory Access Protocol) statements to execute arbitrary LDAP commands.
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Impact: Password Reset, Web Cache Poisoning, URL Redirection It mainly occurs due to improper input filtering. injecting a crafted phishing domain in Host Header value). An attacker tampers the Host Header value in an incoming HTTP request and inject his/her malicious value that will perform nefarious actions if executed (e.g. Host Header Injection value in the HTTP request determines that, which website or web application should refer to. Impact: Spam Relay, Information Disclosure The attacker sends IMAP/SMTP commands to a mail server that is not directly available via a web application. Impact: It may cause Cross-Site Scripting attack.Įmail Header Injection is very similar to CRLF injections.
A CRLF injection vulnerability exists if an attacker can inject the CRLF characters into a web application, for example using a user input form or an HTTP request. PHP, Python, JAVA, Perl, Ruby, etc.).ĬRLF injection the word CRLF refers to Carriage Return (ASCII 13, \r) Line Feed (ASCII 10, \n) characters is used to denote the termination of a line. The Code injected is in the Target of the application and executed by the server-side interpreter for that language (e.g. The following attacks are also various forms Injection vulnerabilities which are also dangerous.Ĭode injection or Remote Code Execution (RCE) is an injection vulnerability that allows an attacker to exploiting the input validation flaw in the application by executing the malicious code. SQL injection and Cross-Site Scripting are the most common types of injection attack but they are not only ones. These attacks includes calls to the operating systems via system calls, use of external programs via shell commands, calls to the backend database etc., Injection attacks are considered to be most dangerous attack because it allows an attacker to inject a malicious code that executes through an application to another system (normally an Interpreter). It ranks top in the OWASP Top 10 since (from 2003-at present) of web application security risk. Injection vulnerability is one of the oldest and also the major problem in web security.
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