Debian DSA-4414-1 : libapache2-mod-auth-mellon - security update

high Nessus Plugin ID 123024

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Synopsis

The remote Debian host is missing a security-related update.

Description

Several issues have been discovered in Apache module auth_mellon, which provides SAML 2.0 authentication.

- CVE-2019-3877 It was possible to bypass the redirect URL checking on logout, so the module could be used as an open redirect facility.

- CVE-2019-3878 When mod_auth_mellon is used in an Apache configuration which serves as a remote proxy with the http_proxy module, it was possible to bypass authentication by sending SAML ECP headers.

Solution

Upgrade the libapache2-mod-auth-mellon packages.

For the stable distribution (stretch), these problems have been fixed in version 0.12.0-2+deb9u1.

Plugin Details

Severity: High

ID: 123024

File Name: debian_DSA-4414.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 3/25/2019

Updated: 6/13/2024

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2019-3878

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libapache2-mod-auth-mellon, cpe:/o:debian:debian_linux:9.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/23/2019

Vulnerability Publication Date: 3/26/2019

Reference Information

CVE: CVE-2019-3877, CVE-2019-3878

DSA: 4414

Detections

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