Debian Security Bug TrackerDEBIANCVE:CVE-2021-22903CVE-2021-22903
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.001 Low
EPSS
Percentile
35.2%
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.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | rails | < 2:6.1.7.3+dfsg-1 | rails_2:6.1.7.3+dfsg-1_all.deb |
| Debian | 11 | all | rails | < 2:6.0.3.7+dfsg-2+deb11u2 | rails_2:6.0.3.7+dfsg-2+deb11u2_all.deb |
| Debian | 10 | all | rails | < 2:5.2.2.1+dfsg-1+deb10u3 | rails_2:5.2.2.1+dfsg-1+deb10u3_all.deb |
| Debian | 999 | all | rails | < 2:6.1.7.3+dfsg-3 | rails_2:6.1.7.3+dfsg-3_all.deb |
| Debian | 13 | all | rails | < 2:6.1.7.3+dfsg-3 | rails_2:6.1.7.3+dfsg-3_all.deb |
Related
6.1 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.8 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:P/A:N
0.001 Low
EPSS
Percentile
35.2%