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Debian DSA-4373-1 : coturn - security update

critical Nessus Plugin ID 121425

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Synopsis

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

Description

Multiple vulnerabilities were discovered in coTURN, a TURN and STUN server for VoIP.

 - CVE-2018-4056 A SQL injection vulnerability was discovered in the coTURN administrator web portal. As the administration web interface is shared with the production, it is unfortunately not possible to easily filter outside access and this security update completely disable the web interface. Users should use the local, command line interface instead.

 - CVE-2018-4058 Default configuration enables unsafe loopback forwarding. A remote attacker with access to the TURN interface can use this vulnerability to gain access to services that should be local only.

 - CVE-2018-4059 Default configuration uses an empty password for the local command line administration interface. An attacker with access to the local console (either a local attacker or a remote attacker taking advantage of CVE-2018-4058 ) could escalade privileges to administrator of the coTURN server.

Solution

Upgrade the coturn packages.

For the stable distribution (stretch), these problems have been fixed in version 4.5.0.5-1+deb9u1.

See Also

https://security-tracker.debian.org/tracker/CVE-2018-4056

https://security-tracker.debian.org/tracker/CVE-2018-4058

https://security-tracker.debian.org/tracker/CVE-2018-4059

https://security-tracker.debian.org/tracker/source-package/coturn

https://packages.debian.org/source/stretch/coturn

https://www.debian.org/security/2019/dsa-4373

Plugin Details

Severity: Critical

ID: 121425

File Name: debian_DSA-4373.nasl

Version: 1.5

Type: local

Agent: unix

Published: 1/29/2019

Updated: 6/25/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2018-4059

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/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:coturn, 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: 1/28/2019

Vulnerability Publication Date: 2/5/2019

Reference Information

CVE: CVE-2018-4056, CVE-2018-4058, CVE-2018-4059

DSA: 4373