Amazon Linux 2 Security Advisory: ALAS-2020-1538
Advisory Release Date: 2020-10-22 18:29 Pacific
Advisory Updated Date: 2020-10-22 22:34 Pacific
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.
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