// For flags

CVE-2022-24825

Smokescreen SSRF via deny list bypass

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Smokescreen es un simple proxy HTTP que empaña las URLs maliciosas. El principal caso de uso de Smokescreen es prevenir ataques de tipo server-side request forgery (SSRF) en los que atacantes externos aprovechan el comportamiento de las aplicaciones para conectarse o escanear la infraestructura interna. Smokescreen también ofrece una opción para denegar el acceso a URLs adicionales (por ejemplo, externas) mediante una lista de denegación. Había un problema en Smokescreen que hacía posible omitir la función de lista de denegación al añadir un endpoint de las URLs proporcionadas por el usuario, o proporcionando la entrada en una letra diferente. Es recomendado actualizar Smokescreen a versión 0.0.3 o posterior

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-02-10 CVE Reserved
  • 2022-04-19 CVE Published
  • 2023-11-10 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-918: Server-Side Request Forgery (SSRF)
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Stripe
Search vendor "Stripe"
 Smokescreen
Search vendor "Stripe" for product "Smokescreen"
 < 0.0.3
Search vendor "Stripe" for product "Smokescreen" and version " < 0.0.3"
-
Affected