Vulnerability Details : CVE-2021-22902
The actionpack ruby gem (a framework for handling and responding to web requests in Rails) before 6.0.3.7, 6.1.3.2 suffers from a possible denial of service vulnerability in the Mime type parser of Action Dispatch. Carefully crafted Accept headers can cause the mime type parser in Action Dispatch to do catastrophic backtracking in the regular expression engine.
Vulnerability category: Denial of service
Products affected by CVE-2021-22902
- cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
- cpe:2.3:a:rubyonrails:rails:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-22902
0.10%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 41 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-22902
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2021-22902
-
The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.Assigned by: support@hackerone.com (Secondary)
References for CVE-2021-22902
-
https://hackerone.com/reports/1138654
Sign inPermissions Required;Third Party Advisory
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https://discuss.rubyonrails.org/t/cve-2021-22902-possible-denial-of-service-vulnerability-in-action-dispatch/77866
[CVE-2021-22902] Possible Denial of Service vulnerability in Action Dispatch - Security Announcements - Ruby on Rails DiscussionsExploit;Mitigation;Patch;Vendor Advisory
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