TeamViewer Desktop up to 15.8.2 on Windows URI Authentication Request unquoted search path

Summaryinfo

A vulnerability has been found in TeamViewer Desktop up to 15.8.2 on Windows and classified as critical. The impacted element is an unknown function of the component URI Handler. The manipulation as part of Authentication Request leads to unquoted search path. This vulnerability is referenced as CVE-2020-13699. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in TeamViewer Desktop up to 15.8.2 on Windows. It has been rated as critical. This issue affects an unknown part of the component URI Handler. The manipulation as part of a Authentication Request leads to a unquoted search path vulnerability. Using CWE to declare the problem leads to CWE-428. The product uses a search path that contains an unquoted element, in which the element contains whitespace or other separators. This can cause the product to access resources in a parent path. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

TeamViewer Desktop for Windows before 15.8.3 does not properly quote its custom URI handlers. A malicious website could launch TeamViewer with arbitrary parameters, as demonstrated by a teamviewer10: --play URL. An attacker could force a victim to send an NTLM authentication request and either relay the request or capture the hash for offline password cracking. This affects teamviewer10, teamviewer8, teamviewerapi, tvchat1, tvcontrol1, tvfiletransfer1, tvjoinv8, tvpresent1, tvsendfile1, tvsqcustomer1, tvsqsupport1, tvvideocall1, and tvvpn1. The issue is fixed in 8.0.258861, 9.0.258860, 10.0.258873, 11.0.258870, 12.0.258869, 13.2.36220, 14.2.56676, 14.7.48350, and 15.8.3.

The weakness was published 07/29/2020 (Website). It is possible to read the advisory at community.teamviewer.com. The identification of this vulnerability is CVE-2020-13699 since 05/29/2020. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1574.009 according to MITRE ATT&CK.

Upgrading to version 15.8.3 eliminates this vulnerability.

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Productinfo

Name

• TeamViewer Desktop

Version

• 15.8.0
• 15.8.1
• 15.8.2

CPE 2.3info

• 🔍
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CPE 2.2info

• 🔍
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