Security Vulnerabilities - CVEs Published In 2020
<p>A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account.</p>
<p>Exploitation of this vulnerability requires that a user uploads a specially crafted SharePoint application package to an affected version of SharePoint.</p>
<p>The security update addresses the vulnerability by correcting how SharePoint checks the source markup of application packages.</p>
CVSS Score
8.6
EPSS Score
0.022
Published
2020-09-11
<p>A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source markup of an application package. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account.</p>
<p>Exploitation of this vulnerability requires that a user uploads a specially crafted SharePoint application package to an affected version of SharePoint.</p>
<p>The security update addresses the vulnerability by correcting how SharePoint checks the source markup of application packages.</p>
CVSS Score
8.6
EPSS Score
0.022
Published
2020-09-11
<p>A remote code execution vulnerability exists in Microsoft SharePoint Server when it fails to properly identify and filter unsafe ASP.Net web controls. An authenticated attacker who successfully exploited the vulnerability could use a specially crafted page to perform actions in the security context of the SharePoint application pool process.</p>
<p>To exploit the vulnerability, an authenticated user must create and invoke a specially crafted page on an affected version of Microsoft SharePoint Server.</p>
<p>The security update addresses the vulnerability by correcting how Microsoft SharePoint Server handles processing of created content.</p>
CVSS Score
8.6
EPSS Score
0.037
Published
2020-09-11
<p>An elevation of privilege vulnerability exists when Microsoft Windows CloudExperienceHost fails to check COM objects. An attacker who successfully exploited the vulnerability could gain elevated privileges on a targeted system.</p>
<p>To exploit the vulnerability, an attacker would have to log on to an affected system and run a specially crafted script or application.</p>
<p>The security update addresses the vulnerability by checking COM objects.</p>
CVSS Score
7.3
EPSS Score
0.012
Published
2020-09-11
<p>A cross-site-scripting (XSS) vulnerability exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit the vulnerability by sending a specially crafted request to an affected SharePoint server.</p>
<p>The attacker who successfully exploited the vulnerability could then perform cross-site scripting attacks on affected systems and run script in the security context of the current user. The attacks could allow the attacker to read content that the attacker is not authorized to read, use the victim's identity to take actions on the SharePoint site on behalf of the user, such as change permissions and delete content, and inject malicious content in the browser of the user.</p>
<p>The security update addresses the vulnerability by helping to ensure that SharePoint Server properly sanitizes web requests.</p>
CVSS Score
6.3
EPSS Score
0.02
Published
2020-09-11
<p>An elevation of privilege vulnerability exists when the Diagnostics Hub Standard Collector improperly handles data operations. An attacker who successfully exploited this vulnerability could run processes in an elevated context.</p>
<p>An attacker could exploit this vulnerability by running a specially crafted application on the victim system.</p>
<p>The update addresses the vulnerability by correcting the way the Diagnostics Hub Standard Collector handles data operations.</p>
CVSS Score
6.6
EPSS Score
0.008
Published
2020-09-11
<p>An elevation of privilege vulnerability exists when the Diagnostics Hub Standard Collector improperly handles file operations. An attacker who successfully exploited this vulnerability could run processes in an elevated context.</p>
<p>An attacker could exploit this vulnerability by running a specially crafted application on the victim system.</p>
<p>The update addresses the vulnerability by correcting the way the Diagnostics Hub Standard Collector handles file operations.</p>
CVSS Score
5.5
EPSS Score
0.01
Published
2020-09-11
<p>An elevation of privilege vulnerability exists when the Microsoft Store Runtime improperly handles memory.</p>
<p>To exploit this vulnerability, an attacker would first have to gain execution on the victim system. An attacker could then run a specially crafted application to elevate privileges.</p>
<p>The security update addresses the vulnerability by correcting how the Microsoft Store Runtime handles memory.</p>
CVSS Score
6.6
EPSS Score
0.008
Published
2020-09-11
<p>An elevation of privilege vulnerability exists when Windows improperly handles calls to Win32k.sys. An attacker who successfully exploited the vulnerability could gain elevated privileges on a targeted system.</p>
<p>To exploit the vulnerability, an attacker would have to log on to an affected system and run a specially crafted script or application.</p>
<p>The update addresses the vulnerability by correcting how Windows handles calls to Win32k.</p>
CVSS Score
5.8
EPSS Score
0.006
Published
2020-09-11
<p>An elevation of privilege vulnerability exists in the way that the StartTileData.dll handles file creation in protected locations. An attacker who successfully exploited the vulnerability could execute code with elevated permissions.</p>
<p>To exploit the vulnerability, a locally authenticated attacker could run a specially crafted application.</p>
<p>The security update addresses the vulnerability by ensuring the StartTileData.dll properly handles this type of function.</p>
CVSS Score
6.6
EPSS Score
0.007
Published
2020-09-11