CVE-2021-34943
Bentley View Heap-Based Buffer Overflow
Description
This vulnerability allows remote attackers to disclose sensitive information on affected installations of Bentley View 10.15.0.75. 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 JT files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-15051.
INFO
Published Date :
Jan. 13, 2022, 10:15 p.m.
Last Modified :
Jan. 14, 2022, 9:57 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
1.4
Exploitability Score :
1.8
Affected Products
The following products are affected by CVE-2021-34943
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-34943.
| URL | Resource |
|---|---|
| https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0005 | Vendor Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-21-1531/ | Third Party Advisory VDB Entry |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-34943 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-34943 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Jan. 14, 2022
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N Changed Reference Type https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0005 No Types Assigned https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0005 Vendor Advisory Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-21-1531/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-21-1531/ Third Party Advisory, VDB Entry Added CWE NIST CWE-125 Added CPE Configuration OR *cpe:2.3:a:bentley:bentley_view:*:*:*:*:*:*:*:* versions up to (excluding) 10.16.02 *cpe:2.3:a:bentley:microstation:*:*:*:*:*:*:*:* versions up to (excluding) 10.16.02
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-34943 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-34943
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.14 }} 0.01%
score
0.49595
percentile