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spostrzeżenie - Computer Security and Privacy - # Exploiting HTML Injection and DMARC Policy Weaknesses in NASA Email Registration

Escalating HTML Injection in NASA Email Registration to Potential Account Takeover


Główne pojęcia
Demonstrating how an HTML injection vulnerability in a NASA email registration system can be escalated to a more severe issue by exploiting the lack of a DMARC policy, leading to potential email spoofing and account takeover.
Streszczenie

The author discovered an HTML injection vulnerability in the email registration process for a NASA workshop. By injecting HTML tags into the first and last name fields, the author was able to successfully execute the HTML code in the email received.

The author then attempted to escalate the severity of the issue by exploring the possibility of chaining the HTML injection with a lack of DMARC policy. DMARC (Domain-based Message Authentication, Reporting, and Conformance) is a protocol that helps prevent email spoofing.

The author used the MXToolbox website to check the DMARC policy for the NASA domain and found that it was not enabled. This allowed the author to potentially spoof emails from the NASA domain using the emkei.cz website.

By combining the HTML injection and the lack of DMARC policy, the author could send spoofed emails from the NASA domain with malicious content, potentially leading to user redirection, IP address disclosure, and account takeover.

The author suggests that properly reporting this issue, including a video demonstration of the attack chain and referencing relevant resources, can increase the chances of the bug being triaged and the severity being escalated.

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What other techniques or vulnerabilities could be chained with the HTML injection to further escalate the impact?

To further escalate the impact of HTML injection, attackers could potentially chain other techniques or vulnerabilities such as Cross-Site Scripting (XSS), Cross-Site Request Forgery (CSRF), or Server-Side Request Forgery (SSRF). By combining HTML injection with these vulnerabilities, attackers could potentially gain access to sensitive information, perform unauthorized actions on behalf of users, or even compromise the entire system.

How can NASA improve its email security practices, beyond just implementing a DMARC policy, to prevent such attacks?

In addition to implementing a DMARC policy, NASA can improve its email security practices by implementing email authentication protocols such as SPF (Sender Policy Framework) and DKIM (DomainKeys Identified Mail). SPF helps to prevent email spoofing by verifying that the sending mail server is authorized to send emails on behalf of a domain. DKIM adds a digital signature to emails to verify their authenticity. By implementing these protocols alongside DMARC, NASA can significantly reduce the risk of email-based attacks like spoofing and phishing. Furthermore, NASA should conduct regular security awareness training for employees to educate them about email security best practices, such as avoiding clicking on suspicious links or attachments, verifying the authenticity of emails before taking any action, and reporting any suspicious emails to the IT security team. Implementing email filtering solutions that can detect and block malicious emails before they reach users' inboxes can also enhance email security.

What are the broader implications of this type of vulnerability in the context of government and critical infrastructure systems?

The presence of HTML injection vulnerabilities in government and critical infrastructure systems poses significant risks to national security and public safety. If exploited by malicious actors, these vulnerabilities could lead to unauthorized access to sensitive government information, manipulation of critical infrastructure systems, or disruption of essential services. In the context of government systems, HTML injection vulnerabilities could be leveraged to launch phishing attacks against government employees, leading to data breaches or unauthorized access to classified information. In critical infrastructure systems such as power plants or transportation networks, exploitation of HTML injection vulnerabilities could result in system malfunctions, service disruptions, or even physical damage. Given the potential impact of such vulnerabilities, it is crucial for government agencies and organizations responsible for critical infrastructure to prioritize cybersecurity measures, conduct regular security assessments, and promptly address any identified vulnerabilities to mitigate the risk of exploitation by malicious actors.
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