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CVE-2021-34876

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存在缓冲区错误漏洞，该漏洞的存在是由于处理 JT 文件时的边界错误。远程攻击者可以创建一个特制的 JT 文件，诱使受害者使用受影响的软件打开它，触发越界写入并在目标系统上执行任意代码。该漏洞允许远程攻击者破坏易受攻击的系统。

AI Predicted 7.4 Difficulty: Easy EPSS 1.94% · P79
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I. Basic Information for CVE-2021-34876

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 JT files. Crafted data in a JT file can trigger 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-14828.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
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存在缓冲区错误漏洞，该漏洞的存在是由于处理 JT 文件时的边界错误。远程攻击者可以创建一个特制的 JT 文件，诱使受害者使用受影响的软件打开它，触发越界写入并在目标系统上执行任意代码。该漏洞允许远程攻击者破坏易受攻击的系统。
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

Vendor Product Affected Versions CPE Subscribe
Bentley View 10.15.0.75 -

II. Public POCs for CVE-2021-34876

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III. Intelligence Information for CVE-2021-34876

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Vendor Advisories for CVE-2021-34876 (1)

Other References for CVE-2021-34876 (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 → →

IV. Related Vulnerabilities

Same product: View
Same vendor: Bentley
Same weakness: CWE-787

V. Comments for CVE-2021-34876

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