PT-2021-19368 · Opentext · Opentext Brava! Desktop

Rgod · Published 2021-06-02 · Updated 2023-10-03 · CVE-2021-31487

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions OpenText Brava! Desktop version 16.6.3.84

Description This issue allows remote attackers to execute arbitrary code on affected installations. User interaction is required, where the target must visit a malicious page or open a malicious file. The flaw exists within the parsing of DWF files due to the lack of proper validation of user-supplied data, resulting in a write past the end of an allocated buffer. An attacker can leverage this to execute code in the context of the current process.

Recommendations For OpenText Brava! Desktop version 16.6.3.84, consider disabling the DWF file parsing functionality until a patch is available to prevent exploitation. Restrict access to malicious pages or files to minimize the risk of exploitation. Avoid using user-supplied data in the DWF file parsing process until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2021-31487

ZDI-21-627

Affected Products

Opentext Brava! Desktop

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-31487 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-627 · Security Note
• https://osv.dev/vulnerability/CVE-2021-31487 · Vendor Advisory
• https://opentext.com/products/brava · Note
• https://cvedetails.com/vulnerability-list/vendor_id-2032/product_id-96672/Opentext-Brava-Desktop.html?page=1&opec=1&order=1&trc=35&sha=37f4ed0596f8ccacca7d571f22a38c97b0f19f4c · Note
• https://t.me/cibsecurity/25466 · Telegram Post