SB2020060957 - Privilege escalation in Microsoft Windows Background Intelligent Transfer Service

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Main Vulnerability Database SB2020060957

SB2020060957 - Privilege escalation in Microsoft Windows Background Intelligent Transfer Service

Published: June 9, 2020

Security Bulletin ID SB2020060957
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-1255)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to the way Windows Background Intelligent Transfer Service (BITS) IIS module handles uploaded content. A remote authenticated attacker can upload restricted file types to an IIS-hosted folder

To exploit this vulnerability, an attacker would require permissions to upload files via BITS.


Remediation

Install update from vendor's website.

References