CVE-2019-3877
Published: 22 March 2019
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.
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 |
Released
(0.14.2-1)
|
|
| xenial |
Released
(0.12.0-2+deb9u1build0.16.04.1)
|
|
|
Patches: upstream: https://github.com/Uninett/mod_auth_mellon/commit/62041428a32de402e0be6ba45fe12df6a83bedb8 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.1 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Changed |
| Confidentiality | Low |
| Integrity impact | Low |
| Availability impact | None |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |