Open Redirect Affecting mod_auth_mellon package, versions <0:0.14.0-2.el7_6.4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ORACLE7-MODAUTHMELLON-2533244
- published10 Apr 2022
- disclosed27 Mar 2019
Introduced: 27 Mar 2019
CVE-2019-3877 (opens in a new tab)How to fix?
Upgrade Oracle:7 mod_auth_mellon to version 0:0.14.0-2.el7_6.4 or higher.
This issue was patched in ELSA-2019-0766.
NVD Description
Note: Versions mentioned in the description apply only to the upstream mod_auth_mellon package and not the mod_auth_mellon package as distributed by Oracle.
See How to fix? for Oracle:7 relevant fixed versions and status.
A vulnerability was found in mod_auth_mellon before v0.14.2. An open redirect in the logout URL allows requests with backslashes to pass through by assuming that it is a relative URL, while the browsers silently convert backslash characters into forward slashes treating them as an absolute URL. This mismatch allows an attacker to bypass the redirect URL validation logic in apr_uri_parse function.
References
- https://linux.oracle.com/cve/CVE-2019-3877.html
- https://linux.oracle.com/errata/ELSA-2019-0766.html
- https://linux.oracle.com/errata/ELSA-2019-3421.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CNW5YMC5TLWVWNJEY6AIWNSNPRAMWPQJ/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/X7NLAU7KROWNTHAYSA2S67X347F42L2I/
- https://access.redhat.com/errata/RHSA-2019:0766
- https://access.redhat.com/errata/RHSA-2019:3421
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3877
- https://github.com/Uninett/mod_auth_mellon/commit/62041428a32de402e0be6ba45fe12df6a83bedb8
- https://github.com/Uninett/mod_auth_mellon/issues/35
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNW5YMC5TLWVWNJEY6AIWNSNPRAMWPQJ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X7NLAU7KROWNTHAYSA2S67X347F42L2I/
- https://usn.ubuntu.com/3924-1/