tinc up to 1.0.34 Authentication Protocol improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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3.6$0-$5k0.00

Summaryinfo

A vulnerability has been found in tinc 1.0.30/1.0.31/1.0.32/1.0.33/1.0.34 and classified as problematic. This impacts an unknown function of the component Authentication Protocol Handler. This manipulation causes improper authentication. This vulnerability appears as CVE-2018-16738. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in tinc 1.0.30/1.0.31/1.0.32/1.0.33/1.0.34. It has been declared as problematic. Affected by this vulnerability is an unknown part of the component Authentication Protocol Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect integrity. The summary by CVE is:

tinc 1.0.30 through 1.0.34 has a broken authentication protocol, although there is a partial mitigation. This is fixed in 1.1.

The bug was discovered 10/08/2018. The weakness was presented 10/10/2018 (Website). The advisory is shared at debian.org. This vulnerability is known as CVE-2018-16738 since 09/09/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 117958 (Debian DSA-4312-1 : tinc - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176500 (Debian Security Update for tinc (DSA 4312-1)).

Upgrading to version 1.1 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (117958). See VDB-125232 and VDB-125234 for similar entries. 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: 3.7
VulDB Meta Temp Score: 3.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 3.7
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
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: 117958
Nessus Name: Debian DSA-4312-1 : tinc - security update
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: tinc 1.1
Patch: d3297fbd3b8c8c8a4661f5bbf89aca5cacba8b5a

Timelineinfo

09/09/2018 🔍
10/08/2018 +29 days 🔍
10/08/2018 +0 days 🔍
10/09/2018 +1 days 🔍
10/10/2018 +0 days 🔍
10/10/2018 +0 days 🔍
10/11/2018 +1 days 🔍
05/25/2023 +1687 days 🔍

Sourcesinfo

Advisory: debian.org
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-16738 (🔍)
GCVE (CVE): GCVE-0-2018-16738
GCVE (VulDB): GCVE-100-125233

OVAL: 🔍
See also: 🔍

Entryinfo

Created: 10/11/2018 11:43
Updated: 05/25/2023 08:45
Changes: 10/11/2018 11:43 (71), 04/01/2020 17:28 (2), 05/25/2023 08:45 (4)
Complete: 🔍
Cache ID: 216::103

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

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