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Debian DLA-1739-1 : rails security update

high Nessus Plugin ID 123526

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Synopsis

The remote Debian host is missing a security update.

Description

John Hawthorn of Github discovered a file content disclosure vulnerability in Rails, a ruby based web application framework.
Specially crafted accept headers in combination with calls to `render file:` can cause arbitrary files on the target server to be rendered, disclosing the file contents.

This vulnerability could also be exploited for a denial of service attack.

For Debian 8 'Jessie', these problems have been fixed in version 2:4.1.8-1+deb8u5.

We recommend that you upgrade your rails packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Upgrade the affected packages.

See Also

https://lists.debian.org/debian-lts-announce/2019/03/msg00042.html

https://packages.debian.org/source/jessie/rails

Plugin Details

Severity: High

ID: 123526

File Name: debian_DLA-1739.nasl

Version: 1.10

Type: local

Agent: unix

Published: 4/1/2019

Updated: 1/11/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2019-5418

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:rails, p-cpe:/a:debian:debian_linux:ruby-actionmailer, p-cpe:/a:debian:debian_linux:ruby-actionpack, p-cpe:/a:debian:debian_linux:ruby-actionview, p-cpe:/a:debian:debian_linux:ruby-activemodel, p-cpe:/a:debian:debian_linux:ruby-activerecord, p-cpe:/a:debian:debian_linux:ruby-activesupport, p-cpe:/a:debian:debian_linux:ruby-activesupport-2.3, p-cpe:/a:debian:debian_linux:ruby-rails, p-cpe:/a:debian:debian_linux:ruby-railties, cpe:/o:debian:debian_linux:8.0

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: 3/31/2019

Vulnerability Publication Date: 3/27/2019

Exploitable With

CANVAS (CANVAS)

Elliot (Rails File Disclosure)

Reference Information

CVE: CVE-2019-5418, CVE-2019-5419