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SSRF Attack On Chat Engine
What is SSRF Attack ?
A Server-Side Request Forgery (SSRF) attack is a type of security vulnerability that occurs when an attacker is able to manipulate a web application into making unintended requests to internal or external resources on behalf of the server. This attack can be particularly dangerous when it targets a search engine.
In the context of a search engine, an SSRF attack can occur when an attacker tricks the search engine's server into making requests to unintended internal resources or external websites. The attack typically exploits vulnerabilities in the server-side code or configuration that allows the attacker to specify arbitrary URLs for the server to fetch.
The consequences of an SSRF attack on a search engine can vary depending on the server's configuration and the nature of the requests. Here are a few possible scenarios.
An SSRF attack through finding open ports involves leveraging an SSRF vulnerability to scan for and exploit open ports on internal or external systems. This attack typically targets web applications that accept user-provided URLs and fail to properly validate or restrict them.
How to do SSRF Attack ?
During a server-side request forgery attack, the server is tricked into making HTTP requests to internal resources or other servers on behalf of the attacker. This is done by crafting a custom-made URL that the server will access and then return the result to the attacker
STEP #1: Open your burp suite, then open burp collaborator client option, then click on copy to clipboard option.
STEP #2: Open notepad paste the clipboard and put http:// in front of the clipboard then copy that clipboard.
STEP #4: Then go to the burp collaborator client page of and keep clicking on the poll now option continuously for 15 seconds, then you will get the DNS IP, scanning which you will get famous hacking ports, so that you can attack DOS or DDOS.
MITIGATION SSRF ATTACK
Mitigating Server-Side Request Forgery (SSRF) attacks involves implementing a combination of preventive measures and best practices to minimize the risk of exploitation. Here are some key mitigation techniques:
1. Use DNS resolution controls:
Implement restrictions on DNS resolution to prevent SSRF attacks. Disable server-side DNS resolution or use a restricted DNS resolver that allows access only to specific domains.
2.Implement server-side protections:
Use security mechanisms such as firewall rules, network proxies, or Web Application Firewalls (WAFs) to monitor and filter outgoing requests. These can help detect and block malicious SSRF attempts.
3. Secure coding practices:
Follow secure coding practices, such as avoiding the use of user-provided URLs directly in server-side requests, using safe APIs and frameworks, and employing security-focused code reviews.
4. Implement network segmentation:
Isolate the server hosting the web application from critical internal resources using proper network segmentation. This helps minimize the impact of an SSRF attack by limiting the attacker's ability to access sensitive systems.
SSRF Attack Impact
The impact of a Server-Side Request Forgery (SSRF) attack can vary depending on several factors, including the vulnerability's severity, the attacker's objectives, the targeted resources, and the overall security measures in place. Here are some potential impacts of an SSRF attack:
1. Exploitation of internal services:
If the SSRF attack successfully targets internal services, an attacker could abuse them for various malicious purposes. For example, they might exploit vulnerable APIs to execute arbitrary code, launch further attacks within the network, or pivot to other systems.
2.Unauthorized access to sensitive data:
One of the primary risks of SSRF attacks is unauthorized access to sensitive information. Attackers may exploit SSRF vulnerabilities to fetch or retrieve data from internal systems, databases, or APIs that are intended to be protected. This could include personally identifiable information (PII), financial data, credentials, or any other valuable data accessible within the targeted network.
How to Report
Hello Team
I'm Career Technology cyber security India a white security researcher from Mumbai INDIA, founded Vulnerability on your website :- https://exmple.com/
Vulnerability Name : (SSRF) Server-Side Request Forgery
Vulnerable URL : https://exmple.com/home/profile/photo
Summary :
A Server-Side Request Forgery (SSRF) attack involves an attacker abusing server functionality to access or modify resources. The attacker targets an application that supports data imports from URLs or allows them to read data from URLs.
Steps to reproduce ?
1. Simply visit the URL : https://exmple.com/
2. create an account and login
3. Then Go to the profile page & click the photo options
4. Get burp collaborator client link and send in the upload image options
5. We will get DNS IP.
6. Now Copy DNS ip and open the Nmap paste the ip in Target Options Then select the UDP in Profile Option
7. Now I get the famous hacking open port So I can do DOS or DDOS attack
8. Please check the POC (Video) For More Information
Impact :
SSRF vulnerabilities listed in the OWASP Top 10 as a major application security risk can lead to sensitive information disclosure, enable unauthorized access to internal systems, and open the way to more dangerous attacks.
By leveraging SSRF, an attacker may overload internal resources or launch denial-of-service (DoS) attacks. This can lead to service disruptions, impacting availability and causing downtime for the targeted systems or applications.
Solutions :
1. Validate URLs to ensure they conform to expected formats and protocols. Use libraries or built-in mechanisms that validate URLs and reject those with non-standard or suspicious protocols (e.g., file://, data://). This helps prevent attackers from accessing local or sensitive resources.
2. Implement network security controls such as firewalls, Intrusion Detection/Prevention Systems (IDS/IPS), and access controls to protect internal resources from unauthorized access. Ensure that internal services or systems are not directly accessible from the internet without proper authentication and authorization.
PFA of video for steps by steps guidance also help to regenerate the Vulnerability
Thanks & Regard,
Career Technology cyber security India
Indian Bug Hunter
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