5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack 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
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
6.4 Medium
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
68.9%
Issue Overview:
An open redirect flaw was discovered in mod_auth_openidc, where it handles logout redirection. The module does not correctly validate the URL, allowing a URL with leading slashes to bypass the protection checks. A victim user may be tricked into visiting a trusted vulnerable web site, which would redirect them to another possibly malicious URL. (CVE-2019-14857)
An open redirect flaw was discovered in mod_auth_openidc where it handles logout redirection. The module does not correctly validate the URL, allowing a URL with slash and backslash at the beginning to bypass the protection checks. A victim user may be tricked into visiting a trusted vulnerable web site, which would redirect him to another, possibly malicious, URL. (CVE-2019-20479)
Affected Packages:
mod_auth_openidc
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update mod_auth_openidc to update your system.
New Packages:
aarch64:
mod_auth_openidc-1.8.8-7.amzn2.aarch64
mod_auth_openidc-debuginfo-1.8.8-7.amzn2.aarch64
i686:
mod_auth_openidc-1.8.8-7.amzn2.i686
mod_auth_openidc-debuginfo-1.8.8-7.amzn2.i686
src:
mod_auth_openidc-1.8.8-7.amzn2.src
x86_64:
mod_auth_openidc-1.8.8-7.amzn2.x86_64
mod_auth_openidc-debuginfo-1.8.8-7.amzn2.x86_64
Red Hat: CVE-2019-14857, CVE-2019-20479
Mitre: CVE-2019-14857, CVE-2019-20479
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Amazon Linux | 2 | aarch64 | mod_auth_openidc | < 1.8.8-7.amzn2 | mod_auth_openidc-1.8.8-7.amzn2.aarch64.rpm |
Amazon Linux | 2 | aarch64 | mod_auth_openidc-debuginfo | < 1.8.8-7.amzn2 | mod_auth_openidc-debuginfo-1.8.8-7.amzn2.aarch64.rpm |
Amazon Linux | 2 | i686 | mod_auth_openidc | < 1.8.8-7.amzn2 | mod_auth_openidc-1.8.8-7.amzn2.i686.rpm |
Amazon Linux | 2 | i686 | mod_auth_openidc-debuginfo | < 1.8.8-7.amzn2 | mod_auth_openidc-debuginfo-1.8.8-7.amzn2.i686.rpm |
Amazon Linux | 2 | x86_64 | mod_auth_openidc | < 1.8.8-7.amzn2 | mod_auth_openidc-1.8.8-7.amzn2.x86_64.rpm |
Amazon Linux | 2 | x86_64 | mod_auth_openidc-debuginfo | < 1.8.8-7.amzn2 | mod_auth_openidc-debuginfo-1.8.8-7.amzn2.x86_64.rpm |
5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack 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
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
6.4 Medium
AI Score
Confidence
High
0.003 Low
EPSS
Percentile
68.9%