CVE-2021-34904
Quick assessment
Affected
Bentley View
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Bentley Systems Bentley View是美国Bentley Systems公司的一个免费查看器。 Bentley View 存在安全漏洞，该漏洞源于在DGN文件中创建的数据可以触发超过已分配缓冲区末端的写操作。攻击者可利用该漏洞在受影响的Bentley View安装上执行代码。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-34904
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
This vulnerability allows remote attackers to execute arbitrary code 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 DGN files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14877.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
堆缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Bentley Systems Bentley View 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bentley Systems Bentley View是美国Bentley Systems公司的一个免费查看器。 Bentley View 存在安全漏洞，该漏洞源于在DGN文件中创建的数据可以触发超过已分配缓冲区末端的写操作。攻击者可利用该漏洞在受影响的Bentley View安装上执行代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2021-34904
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2021-34904 (1)
-
https://www.zerodayinitiative.com/advisories/ZDI-21-1493/ x_refsource_MISC
Other References for CVE-2021-34904 (1)
Same Patch Batch · Bentley · 2022-01-13 · 78 CVEs total
| CVE-2021-34915 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34916 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34930 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34918 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34919 | Bentley Systems Bentley View 资源管理错误漏洞 | |
| CVE-2021-34917 | Bentley Systems Bentley View 资源管理错误漏洞 | |
| CVE-2021-34914 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34913 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34912 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34911 | Bentley Systems Bentley View 资源管理错误漏洞 | |
| CVE-2021-34920 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34921 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34922 | Bentley Systems Bentley View 资源管理错误漏洞 | |
| CVE-2021-34923 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34924 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34925 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34926 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34927 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34928 | Bentley Systems Bentley View 缓冲区错误漏洞 | |
| CVE-2021-34929 | Bentley Systems Bentley View 缓冲区错误漏洞 |
Showing top 20 of 78 CVEs. View all on vendor page → →
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V. Comments for CVE-2021-34904
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