TeamViewer on Windows DLL Loader untrusted search path

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in TeamViewer up to 11.0.133222/12.0.181268/13.2.36215/14.6.4835 on Windows. The impacted element is an unknown function of the component DLL Loader. Such manipulation leads to untrusted search path. This vulnerability is referenced as CVE-2019-18196. The attack can only be performed from a local environment. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in TeamViewer up to 11.0.133222/12.0.181268/13.2.36215/14.6.4835 on Windows and classified as critical. Affected by this issue is an unknown part of the component DLL Loader. The manipulation with an unknown input leads to a untrusted search path vulnerability. Using CWE to declare the problem leads to CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. Impacted is confidentiality, integrity, and availability. CVE summarizes:

A DLL side loading vulnerability in the Windows Service in TeamViewer versions up to 11.0.133222 (fixed in 11.0.214397), 12.0.181268 (fixed in 12.0.214399), 13.2.36215 (fixed in 13.2.36216), and 14.6.4835 (fixed in 14.7.1965) on Windows could allow an attacker to perform code execution on a target system via a service restart where the DLL was previously installed with administrative privileges. Exploitation requires that an attacker be able to create a new file in the TeamViewer application directory; directory permissions restrict that by default.

The weakness was published 10/24/2019 (Website). The advisory is shared for download at community.teamviewer.com. This vulnerability is handled as CVE-2019-18196 since 10/18/2019. The attack needs to be approached locally. A simple authentication is necessary for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1574.

Upgrading to version 11.0.214397, 12.0.214399, 13.2.36216 or 14.7.1965 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
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: Untrusted search path
CWE: CWE-426
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: TeamViewer 11.0.214397/12.0.214399/13.2.36216/14.7.1965

Timelineinfo

10/18/2019 🔍
10/24/2019 +6 days 🔍
10/25/2019 +1 days 🔍
10/25/2019 +0 days 🔍

Sourcesinfo

Advisory: community.teamviewer.com
Status: Not defined

CVE: CVE-2019-18196 (🔍)
GCVE (CVE): GCVE-0-2019-18196
GCVE (VulDB): GCVE-100-144140

Entryinfo

Created: 10/25/2019 08:23
Updated: 10/25/2019 08:28
Changes: 10/25/2019 08:23 (39), 10/25/2019 08:28 (17)
Complete: 🔍
Cache ID: 216::103

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