Security Vulnerabilities - CVEs Published In September 2020
<p>An elevation of privilege vulnerability exists in the way that Microsoft COM for Windows handles objects in memory. An attacker who successfully exploited the vulnerability could gain elevated privileges on a targeted system.</p>
<p>To exploit the vulnerability, a user would have to open a specially crafted file.</p>
<p>The security update addresses the vulnerability by correcting how Microsoft COM for Windows handles objects in memory.</p>
CVSS Score
7.9
EPSS Score
0.011
Published
2020-09-11
<p>A remote code execution vulnerability exists when Windows Media Audio Decoder improperly handles objects. An attacker who successfully exploited the vulnerability could take control of an affected system.</p>
<p>There are multiple ways an attacker could exploit the vulnerability, such as by convincing a user to open a specially crafted document, or by convincing a user to visit a malicious webpage.</p>
<p>The security update addresses the vulnerability by correcting how Windows Media Audio Decoder handles objects.</p>
CVSS Score
7.6
EPSS Score
0.014
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
5.4
EPSS Score
0.004
Published
2020-09-11
<p>A tampering vulnerability exists when Microsoft SharePoint Server fails to properly handle profile data. An attacker who successfully exploited this vulnerability could modify a targeted user's profile data.</p>
<p>To exploit the vulnerability, an attacker would need to be authenticated on an affected SharePoint Server. The attacker would then need to send a specially modified request to the server, targeting a specific user.</p>
<p>The security update addresses the vulnerability by modifying how Microsoft SharePoint Server handles profile data.</p>
CVSS Score
8.9
EPSS Score
0.019
Published
2020-09-11
<p>An elevation of privilege vulnerability exists when the Windows InstallService 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 Windows InstallService handles memory.</p>
CVSS Score
7.8
EPSS Score
0.005
Published
2020-09-11
<p>An elevation of privilege vulnerability exists when the Windows Storage Services improperly handle file operations. An attacker who successfully exploited this vulnerability could gain elevated privileges.</p>
<p>To exploit the vulnerability, an attacker would first need code execution on a victim system. An attacker could then run a specially crafted application.</p>
<p>The security update addresses the vulnerability by ensuring the Windows Storage Services properly handle file operations.</p>
CVSS Score
7.8
EPSS Score
0.005
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
5.4
EPSS Score
0.004
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
8.5
EPSS Score
0.003
Published
2020-09-11
<p>An information disclosure vulnerability exists when the Windows kernel improperly handles objects in memory. An attacker who successfully exploited this vulnerability could obtain information to further compromise the user’s system.</p>
<p>To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to execute code or to elevate user rights directly, but it could be used to obtain information that could be used to try to further compromise the affected system.</p>
<p>The update addresses the vulnerability by correcting how the Windows kernel handles objects in memory.</p>
CVSS Score
4.4
EPSS Score
0.004
Published
2020-09-11
<p>An elevation of privilege vulnerability exists when the Connected User Experiences and Telemetry Service improperly handles file operations. An attacker who successfully exploited this vulnerability could gain elevated privileges on the victim system.</p>
<p>To exploit the vulnerability, an attacker would first have to gain execution on the victim system, then run a specially crafted application.</p>
<p>The security update addresses the vulnerability by correcting how the Connected User Experiences and Telemetry Service handles file operations.</p>
CVSS Score
6.6
EPSS Score
0.005
Published
2020-09-11