coTURN up to 4.5.0.8 TURN Server Loopback config

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in coTURN up to 4.5.0.8. It has been rated as critical. The impacted element is an unknown function of the component TURN Server. Performing a manipulation results in config (Loopback). This vulnerability is known as CVE-2018-4058. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in coTURN up to 4.5.0.8. This affects an unknown function of the component TURN Server. The manipulation with an unknown input leads to a config vulnerability (Loopback). CWE is classifying the issue as CWE-16. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An exploitable unsafe default configuration vulnerability exists in the TURN server functionality of coTURN prior to 4.5.0.9. By default, the TURN server allows relaying external traffic to the loopback interface of its own host. This can provide access to other private services running on that host, which can lead to further attacks. An attacker can set up a relay with a loopback address as the peer on an affected TURN server to trigger this vulnerability.

The weakness was published 03/21/2019. This vulnerability is uniquely identified as CVE-2018-4058 since 01/02/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592.004 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 121495 (FreeBSD : turnserver -- multiple vulnerabilities (181beef6-2482-11e9-b4a3-00155d006b02)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176568 (Debian Security Update for coturn (DSA 4373-1)).

Upgrading to version 4.5.0.9 eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (121495). Similar entries are available at VDB-130554 and VDB-131986. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.5

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.7
NVD Vector: 🔍

CNA Base Score: 7.7
CNA Vector (Talos): 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Loopback
Class: Config / Loopback
CWE: CWE-16
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 121495
Nessus Name: FreeBSD : turnserver -- multiple vulnerabilities (181beef6-2482-11e9-b4a3-00155d006b02)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: coTURN 4.5.0.9

Timelineinfo

01/02/2018 🔍
01/30/2019 +393 days 🔍
01/31/2019 +1 days 🔍
03/21/2019 +49 days 🔍
03/22/2019 +1 days 🔍
08/03/2023 +1595 days 🔍

Sourcesinfo

Advisory: talosintelligence.com
Status: Confirmed

CVE: CVE-2018-4058 (🔍)
GCVE (CVE): GCVE-0-2018-4058
GCVE (VulDB): GCVE-100-131985
See also: 🔍

Entryinfo

Created: 03/22/2019 08:19
Updated: 08/03/2023 20:49
Changes: 03/22/2019 08:19 (40), 05/18/2020 11:51 (28), 08/03/2023 20:42 (4), 08/03/2023 20:49 (12)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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