Server-side vs. Client-side Vulnerabilities
Learn about the key technical differences between server-side and client-side vulnerabilities and how they can be exploited by attackers to gain unauthorized access to systems and data.
Server-Side Vulnerabilities
SQL Injection : An attacker exploits a vulnerability to manipulate database queries and potentially gain unauthorized access to sensitive data.
Server-side request forgery (SSRF) : An attacker tricks a server into making unintended requests, potentially accessing internal resources or sensitive information.
File Inclusion Vulnerabilities : An attacker manipulates file inclusion mechanisms to gain unauthorized access to files or execute malicious code on the server.
Insecure Configuration : Poorly configured servers can expose vulnerabilities that allow attackers to bypass security measures and gain unauthorized access.
Client-Side Vulnerabilities
Cross-site scripting (XSS) : An attacker injects malicious code into a web page, which is then executed by a user’s browser, potentially compromising their data or performing unauthorized actions.
Insecure Third-Party Libraries : Using outdated or vulnerable third-party libraries can expose a user’s browser to security flaws and potential exploitation.
Clickjacking : An attacker tricks a user into clicking on hidden or disguised elements, potentially leading to unintended actions or data disclosure.
Insecure Browser Extensions : Malicious or poorly developed browser extensions can introduce vulnerabilities that compromise user security and privacy.
Technical Differences :
- Level of Access : Server-side vulnerabilities grant attackers full access to server resources, while client-side vulnerabilities provide more limited access within the user’s browser environment.
- Exploitation Method : Server-side vulnerabilities are typically exploited through HTTP requests, while client-side vulnerabilities are commonly exploited by injecting malicious code into web pages.
