CVE-2021-35005: TeamViewer Improper Validation of Array Index Information Disclosure Vulnerability
First published: Mon Jan 24 2022(Updated: )
This vulnerability allows local attackers to disclose sensitive information on affected installations of TeamViewer. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the TeamViewer service. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated array. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of SYSTEM.
Credit: zdi-disclosures@trendmicro.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Teamviewer Teamviewer | <15.18.5.0 | |
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Reference Links
Frequently Asked Questions
What is CVE-2021-35005?
CVE-2021-35005 is an improper validation vulnerability in TeamViewer that allows local attackers to disclose sensitive information.
How can this vulnerability be exploited?
In order to exploit this vulnerability, an attacker must first obtain the ability to execute low-privileged code on the target system.
What is the severity level of CVE-2021-35005?
The severity level of CVE-2021-35005 is low with a CVSS score of 3.3.
Which versions of TeamViewer are affected by CVE-2021-35005?
Versions up to and excluding 15.18.5.0 of TeamViewer are affected by CVE-2021-35005.
How can I fix CVE-2021-35005?
To fix CVE-2021-35005, it is recommended to update to a version of TeamViewer that is not affected by this vulnerability.
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