CVE-2019-3878
Published: 21 March 2019
A vulnerability was found in mod_auth_mellon before v0.14.2. If Apache is configured as a reverse proxy and mod_auth_mellon is configured to only let through authenticated users (with the require valid-user directive), adding special HTTP headers that are normally used to start the special SAML ECP (non-browser based) can be used to bypass authentication.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
libapache2-mod-auth-mellon Launchpad, Ubuntu, Debian |
bionic |
Released
(0.13.1-1ubuntu0.1)
|
| cosmic |
Released
(0.14.0-1ubuntu0.1)
|
|
| disco |
Released
(0.14.2-1ubuntu1)
|
|
| eoan |
Released
(0.14.2-1ubuntu1)
|
|
| focal |
Released
(0.14.2-1ubuntu1)
|
|
| groovy |
Released
(0.14.2-1ubuntu1)
|
|
| trusty |
Does not exist
(trusty was needs-triage)
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(0.12.0-2+deb9u1build0.16.04.1)
|
|
|
Patches: upstream: https://github.com/Uninett/mod_auth_mellon/commit/e09a28a30e13e5c22b481010f26b4a7743a09280 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 8.1 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |