Ubuntu.comUB:CVE-2021-22904CVE-2021-22904
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
60.2%
The actionpack ruby gem before 6.1.3.2, 6.0.3.7, 5.2.4.6, 5.2.6 suffers
from a possible denial of service vulnerability in the Token Authentication
logic in Action Controller due to a too permissive regular expression.
Impacted code uses authenticate_or_request_with_http_token or
authenticate_with_http_token for request authentication.
Notes
| Author | Note |
|---|---|
| seth-arnold | In Oneiric-Saucy, rails package is just for transition; The rails package contains actual code from vivid onward |
References
github.com/rails/rails/commit/3d9e9fdf14e044b3ba66f909582c228a9d4ffb5c (v5.2.4.6)
github.com/rails/rails/commit/d861fa8ade353390c4419b53a6c6b41f3005b1f2 (v6.0.3.7)
github.com/rails/rails/commit/eab8c20f3ef6a022c4c11b439b1b22cef1768d5e (main)
launchpad.net/bugs/cve/CVE-2021-22904
nvd.nist.gov/vuln/detail/CVE-2021-22904
security-tracker.debian.org/tracker/CVE-2021-22904
www.cve.org/CVERecord?id=CVE-2021-22904
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.002 Low
EPSS
Percentile
60.2%