OpenText Brava! Desktop JXR File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability

December 3rd, 2021
ZDI-21-1392 ZDI-CAN-14093

CVE ID

CVSS Score

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

Affected Vendors

OpenText

Affected Products

Brava! Desktop

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the parsing of JXR files. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of the current process.

Additional Details

Fixed in version 16.6.5.


Disclosure Timeline

  • 2021-06-24 - Vulnerability reported to vendor
  • 2021-12-03 - Coordinated public release of advisory

Credit

Mat Powell of Trend Micro Zero Day Initiative

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