Micro Focus Operations Bridge Manager Service Incorrect Permission Assignment Privilege Escalation Vulnerability

October 28th, 2020
ZDI-20-1326 ZDI-CAN-11204

CVE ID

CVE-2020-11858

CVSS Score

7.8 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Vendors

Micro Focus

Affected Products

Operations Bridge Manager

Vulnerability Details

This vulnerability allows local attackers to escalate privileges on affected installations of Micro Focus Operations Bridge Manager. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.

The specific flaw exists within the product installer. The issue results from incorrect permissions set on the installation directory. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of SYSTEM.

Additional Details

Micro Focus has issued an update to correct this vulnerability. More details can be found at:
https://softwaresupport.softwaregrp.com/doc/KM03747658

Disclosure Timeline

  • 2020-07-02 - Vulnerability reported to vendor
  • 2020-10-28 - Coordinated public release of advisory

Credit

Pedro Ribeiro (pedrib@gmail.com | @pedrib1337) from Agile Information Security

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