CVEvulnerability
CVE-2019-3877
6.1 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2019-03-27
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 5.8 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
- CVSS 3.0 ([email protected])
- 6.1 MEDIUM — CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:P/A:N
- Weaknesses
- CWE-601
Description
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.
Affected configurations
• mod auth mellon project mod auth mellon (< 0.14.2)
• fedoraproject fedora 29
• redhat enterprise linux 7.0
• canonical ubuntu linux 18.04
• canonical ubuntu linux 18.10
Related
Weakness · CWE (1)
- CWE-601 URL Redirection to Untrusted Site weakness
References
- https://access.redhat.com/errata/RHSA-2019:0766 access.redhat.com
- https://access.redhat.com/errata/RHSA-2019:3421 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3877 Issue Tracking, Patch, Third Party Advisory
- https://github.com/Uninett/mod_auth_mellon/commit/62041428a32de402e0be6ba45fe12df6a83bedb8 Patch, Third Party Advisory
- https://github.com/Uninett/mod_auth_mellon/issues/35 Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNW5YMC5TLWVWNJEY6AIWNSNPRAMWPQJ/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X7NLAU7KROWNTHAYSA2S67X347F42L2I/ lists.fedoraproject.org
- https://usn.ubuntu.com/3924-1/ Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0766 access.redhat.com
- https://access.redhat.com/errata/RHSA-2019:3421 access.redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3877 Issue Tracking, Patch, Third Party Advisory
- https://github.com/Uninett/mod_auth_mellon/commit/62041428a32de402e0be6ba45fe12df6a83bedb8 Patch, Third Party Advisory
- https://github.com/Uninett/mod_auth_mellon/issues/35 Patch, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CNW5YMC5TLWVWNJEY6AIWNSNPRAMWPQJ/ lists.fedoraproject.org
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X7NLAU7KROWNTHAYSA2S67X347F42L2I/ lists.fedoraproject.org
- https://usn.ubuntu.com/3924-1/ Third Party Advisory