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[email protected]CVE-2019-3878

HistoryMar 26, 2019 - 6:29 p.m.

CVE-2019-3878

2019-03-2618:29:00

CWE-287

CWE-305

[email protected]

web.nvd.nist.gov

cve-2019-3878

apache

mod_auth_mellon

authentication bypass

reverse proxy

http headers

saml ecp

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

7.7 High

AI Score

Confidence

High

0.018 Low

EPSS

Percentile

88.1%

JSON

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.

Affected configurations

Vulners

NVD

Node

uninettmod_auth_mellonRange≤0.14.2

VendorProductVersionCPE
uninettmod_auth_mellon*cpe:2.3:a:uninett:mod_auth_mellon:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
uninett	mod_auth_mellon	*	cpe:2.3:a:uninett:mod_auth_mellon::::::::

CNA Affected

[
  {
    "product": "mod_auth_mellon",
    "vendor": "uninett",
    "versions": [
      {
        "status": "affected",
        "version": "before v0.14.2"
      }
    ]
  }
]