Advisory Details

October 28th, 2020

Micro Focus Operations Bridge Manager DataAcquisitionService Deserialization Of Untrusted Data Remote Code Execution Vulnerability

ZDI-20-1308
ZDI-CAN-11400

CVE ID CVE-2020-11853
CVSS SCORE 8.8, (AV:N/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 remote attackers to execute arbitrary code on affected installations of Micro Focus Operations Bridge Manager. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed.

The specific flaw exists within the DataAcquisitionService endpoint. The issue results from the lack of proper validation of user-supplied data, which can result in deserialization of untrusted data. An attacker can leverage this vulnerability to 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
  • 2020-06-26 - 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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