SB2019111307 - Privilege escalation in Windows Data Sharing Service

Description

This security bulletin contains information about 3 secuirty vulnerabilities.

1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-1383)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the Windows Data Sharing Service improperly handles file operations. A local user can use a specially crafted application and run processes in an elevated context.

2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-1417)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error when the Windows Data Sharing Service improperly handles file operations. A local user can use a specially crafted application to trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

3) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2019-1379)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the Windows Data Sharing Service improperly handles file operations. A local user can use a specially crafted application and run processes in an elevated context

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1383
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1417
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1379