CVE-2022-24825: Smokescreen SSRF via deny list bypass
Smokescreen is a simple HTTP proxy that fogs over naughty URLs. The primary use case for Smokescreen is to prevent server-side request forgery (SSRF) attacks in which external attackers leverage the behavior of applications to connect to or scan internal infrastructure. Smokescreen also offers an option to deny access to additional (e.g., external) URLs by way of a deny list. There was an issue in Smokescreen that made it possible to bypass the deny list feature by appending a dot to the end of user-supplied URLs, or by providing input in a different letter case. Recommended to upgrade Smokescreen to version 0.0.3 or later.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2022-24825?
CVE-2022-24825 has been classified as a medium severity vulnerability.
How does CVE-2022-24825 affect Smokescreen?
CVE-2022-24825 allows for potential server-side request forgery (SSRF) attacks due to improper validation of URLs.
How do I fix CVE-2022-24825?
To mitigate CVE-2022-24825, upgrade Smokescreen to version 0.0.4 or higher.
What is the impact of CVE-2022-24825 on internal infrastructure?
CVE-2022-24825 could enable attackers to exploit Smokescreen to access internal services that are not intended to be publicly accessible.
Which versions of Smokescreen are affected by CVE-2022-24825?
CVE-2022-24825 affects Smokescreen versions up to and including 0.0.3.