Headline
CVE-2021-31494: ZDI-21-634
This vulnerability allows remote attackers to execute arbitrary code on affected installations of OpenText Brava! Desktop 16.6.3.84. 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 DXF 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 buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-13305.
June 2nd, 2021
OpenText Brava! Desktop DXF File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability****ZDI-21-634
ZDI-CAN-13305
CVE ID
CVE-2021-31494
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 DXF 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 buffer. An attacker can leverage this vulnerability to execute code in the context of the current process.
ADDITIONAL DETAILS
Fixed in version 6.6.4.114
DISCLOSURE TIMELINE
- 2021-03-03 - Vulnerability reported to vendor
- 2021-06-02 - Coordinated public release of advisory
CREDIT
Michael DePlante (@izobashi) of Trend Micro’s Zero Day Initiative
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