Regular Expression Denial of Service in CTFd by the Vendor CTFd
CVE-2024-46242

7.5HIGH

Key Information:

Vendor

CTFd

Status
CTFd
Vendor
CVE Published:
7 January 2025

What is CVE-2024-46242?

A vulnerability exists in the validate_email function of CTFd version 3.7.3, where an attacker can exploit the system by submitting a specially crafted email address during registration. This flaw opens the potential for a Regular Expression Denial of Service (ReDoS) attack, effectively causing service disruptions. By leveraging this issue, an attacker can manipulate the validation process, leading to an excessive consumption of resources and potentially affecting the overall performance of the application.

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References

http://ctfd.com
https://gist.github.com/salvatore-abello/4f01f3fa54672feb...

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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