DSA-2021-052: Dell SupportAssist for Home PCs and Business PCs Security Update for PC-Doctor Plugin Vulnerability
Summary:Dell SupportAssist for Home PCs and Business PCs contain remediation for a PC-Doctor plugin vulnerability that may be exploited by malicious users to compromise the affected system.
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Dell SupportAssist for Home PCs versions 3.7.x, 3.6.x, 3.4.x, 3.3.x and Dell SupportAssist for Business PCs versions 2.0.x, 2.1.x, 2.2.x, contain a DLL injection vulnerability in the Costura Fody plugin provided by PC Doctor. A local user with low privileges could potentially exploit this vulnerability, leading to the execution of arbitrary executable on the operating system with SYSTEM privileges.
Dell SupportAssist for Home PCs versions 3.7.x, 3.6.x, 3.4.x, 3.3.x and Dell SupportAssist for Business PCs versions 2.0.x, 2.1.x, 2.2.x, contain a DLL injection vulnerability in the Costura Fody plugin provided by PC Doctor. A local user with low privileges could potentially exploit this vulnerability, leading to the execution of arbitrary executable on the operating system with SYSTEM privileges.
Dell Technologies recommends all customers consider both the CVSS base score and any relevant temporal and environmental scores that may impact the potential severity associated with a particular security vulnerability.
Affected Products & Remediation
Product
Affected Version(s)
Updated Version(s)
Link to Update
Dell SupportAssist for PCs
Dell SupportAssist for Home PCs 3.7.x, 3.6.x, 3.4.x, and 3.3.x
Dell SupportAssist for Business PCs 2.0.x, 2.1.x, and 2.2.x
Dell recommends all customers upgrade at the earliest opportunity.
Method 1: Auto Update Enabled
All versions of SupportAssist automatically upgrade to the latest version available if automatic upgrades are enabled. Customers can check which version they are running and upgrade to a newer version of SupportAssist, if available.
Method 2: Manual Update
Steps for manual update of SupportAssist for Home PCs:
Open SupportAssist.
On the top-right corner of the SupportAssist window, click the ‘Settings’ icon, and then click ‘AboutSupportAssist’. SupportAssist automatically checks if a newer version of SupportAssist is available.
If no update is available, a message indicating that the latest version of SupportAssist is installed is displayed.
If a newer version of SupportAssist is available, the ‘Update Now’ link is displayed.
Upon clicking Update Now, the latest version of SupportAssist is downloaded and installed on the system.
Dell recommends all customers upgrade at the earliest opportunity.
Method 1: Auto Update Enabled
All versions of SupportAssist automatically upgrade to the latest version available if automatic upgrades are enabled. Customers can check which version they are running and upgrade to a newer version of SupportAssist, if available.
Method 2: Manual Update
Steps for manual update of SupportAssist for Home PCs:
Open SupportAssist.
On the top-right corner of the SupportAssist window, click the ‘Settings’ icon, and then click ‘AboutSupportAssist’. SupportAssist automatically checks if a newer version of SupportAssist is available.
If no update is available, a message indicating that the latest version of SupportAssist is installed is displayed.
If a newer version of SupportAssist is available, the ‘Update Now’ link is displayed.
Upon clicking Update Now, the latest version of SupportAssist is downloaded and installed on the system.