// For flags

CVE-2021-22903

 

Severity Score

6.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

The actionpack ruby gem before 6.1.3.2 suffers from a possible open redirect vulnerability. Specially crafted Host headers in combination with certain "allowed host" formats can cause the Host Authorization middleware in Action Pack to redirect users to a malicious website. This is similar to CVE-2021-22881. Strings in config.hosts that do not have a leading dot are converted to regular expressions without proper escaping. This causes, for example, `config.hosts << "sub.example.com"` to permit a request with a Host header value of `sub-example.com`.

El actionpack ruby gem versiones anteriores a 6.1.3.2, sufre una posible vulnerabilidad de redireccionamiento abierto. Las cabeceras de Host especialmente diseñadas en combinación con determinados formatos "allowed host" pueden hacer que el middleware Host Authorization de Action Pack redirija a usuarios hacia un sitio web malicioso. Esto es similar a CVE-2021-22881. Las cadenas en config.hosts que no tienen un punto inicial se convierten en expresiones regulares sin un escape apropiado. Esto hace que, por ejemplo, "config.hosts (( "sub.example.com"" permita una petición con un valor de cabecera Host de "sub-example.com"

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-01-06 CVE Reserved
  • 2021-06-11 CVE Published
  • 2024-02-25 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-601: URL Redirection to Untrusted Site ('Open Redirect')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Rubyonrails
Search vendor "Rubyonrails"
 Rails
Search vendor "Rubyonrails" for product "Rails"
 >= 6.1.1 < 6.1.3.2
Search vendor "Rubyonrails" for product "Rails" and version " >= 6.1.1 < 6.1.3.2"
-
Affected
Rubyonrails
Search vendor "Rubyonrails"
 Rails
Search vendor "Rubyonrails" for product "Rails"
 6.1.0
Search vendor "Rubyonrails" for product "Rails" and version "6.1.0"
rc2
Affected