Improper input validation in Microsoft SharePoint Foundation and Microsoft SharePoint Server - CVE-2018-8300
Published: July 10, 2018 / Updated: July 10, 2018
Vulnerability identifier: #VU13772
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-8300
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper check of the source markup of an application package. A remote unauthenticated attacker can trick the victim into uploading a specially crafted SharePoint application package to an affected versions of SharePoint and run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Microsoft SharePoint Foundation
Microsoft SharePoint Server
Microsoft SharePoint Server
How to mitigate CVE-2018-8300
Install updates from vendor's website.