bug hunting
Bug Description:
Upon examining the DNS (Domain Name System) records for the domain https://gohighlevel.com , it has come to my attention that the MTA-STS record is missing. The MTA-STS mechanism is designed to enforce secure email communication by requiring the use of encryption. However, in this case, the absence of the MTA-STS record exposes the email infrastructure to potential security vulnerabilities.
Expected Behavior:
The MTA-STS record should be correctly configured and published in the DNS records for the domain [Domain Name]. It is essential for secure email communication and enforcing encryption for all incoming and outgoing email traffic.
Steps to Reproduce:
1) Navigate this url https://easydmarc.com/tools/mta-sts-check and enter your domain name
https://gohighlevel.com
2) Observe the absence of the MTA-STS record in the DNS response. No record was found, indicating that the MTA-STS record is not present in the DNS configuration.
The CVSS score for the Mail Transfer Agent - Strict Transport Security (MTA-STS) vulnerability is 5.9
Impact:
The absence of an MTA-STS record leaves the email infrastructure vulnerable to various security risks, such as downgrade attacks and interception of sensitive email content. Without the MTA-STS mechanism in place, email communications may be transmitted over unencrypted channels, compromising the confidentiality and integrity of the data.
Vulnerability and its potential impact on HUMAN :
The MTA-STS DNS RECORD MISSING vulnerability involves the absence of a DNS record for an email domain. In this case, the DNS record for MTA-STS policy is not found. The potential impact of this vulnerability is that attackers can perform an email downgrade attack. This means that the attacker can force the email to be sent unencrypted, which could potentially expose sensitive information to eavesdropping. It's important to note that the impact on humans can be significant, as sensitive information transmitted via email could be compromised. Therefore, it's crucial to ensure that the MTA-STS policy is properly implemented and the necessary DNS records are in place.
References:
RFC 8460: The Mail Transfer Agent Strict Transport Security (MTA-STS)
OWASP Email Security Project
CWE-346: Origin Validation Error