Attacker Value
Unknown
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Exploitability
Unknown
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User Interaction
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Privileges Required
Unknown
Attack Vector
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0

CVE-2019-3878

Disclosure Date: March 26, 2019
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Description

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.

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CVSS V3 Severity and Metrics
Base Score:
None
Impact Score:
Unknown
Exploitability Score:
Unknown
Vector:
Unknown
Attack Vector (AV):
Unknown
Attack Complexity (AC):
Unknown
Privileges Required (PR):
Unknown
User Interaction (UI):
Unknown
Scope (S):
Unknown
Confidentiality (C):
Unknown
Integrity (I):
Unknown
Availability (A):
Unknown

General Information

Vendors

  • canonical,
  • fedoraproject,
  • mod auth mellon project,
  • redhat

Products

  • enterprise linux 7.0,
  • enterprise linux desktop 7.0,
  • enterprise linux server 7.0,
  • enterprise linux server aus 7.6,
  • enterprise linux server eus 7.6,
  • enterprise linux server tus 7.6,
  • enterprise linux workstation 7.0,
  • fedora 29,
  • fedora 30,
  • mod auth mellon,
  • ubuntu linux 18.04,
  • ubuntu linux 18.10
Technical Analysis