PT-2021-19387 · Opentext · Opentext Brava! Desktop

Rgod · Published 2021-06-07 · Updated 2023-10-03 · CVE-2021-31504

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 (package 16.6.3.134)

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 PDF files due to the lack of proper validation of a user-supplied value prior to dereferencing it as a pointer. 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 (package 16.6.3.134), as a temporary workaround, consider disabling the PDF parsing functionality until a patch is available. Restrict access to malicious pages or files to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Untrusted Pointer Dereference

Weakness Enumeration

CWE-822

Related Identifiers

CVE-2021-31504

ZDI-21-646

Affected Products

Opentext Brava! Desktop

References · 8

• https://zerodayinitiative.com/advisories/ZDI-21-646 · Security Note
• https://osv.dev/vulnerability/CVE-2021-31504 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-31504 · Security Note
• https://t.me/cvenotify/58905 · Telegram Post
• 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/26762 · Telegram Post
• https://opentext.com/products/brava · Note
• https://t.me/cvenotify/19134 · Telegram Post