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CVE-2021-26635— Bandisoft ARK Library buffer overflow vulnerability

Quick assessment

Affected
Bandisoft International Inc. ark library
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.

Bandisoft ARK library是韩国Bandisoft公司的一个解压Windows、macOS、Linux等各种OS环境中现有的ZIP、RAR、ALZ、EGG等大多数压缩格式的库，并创建ZIP/7Z格式的压缩文件。 Bandisoft ARK library 7.17之前的版本存在缓冲区错误漏洞，该漏洞源于在ark 库中校验文件大小的代码中数据类型使用错误，攻击者利用该漏洞可以执行远程代码。

CVSS 7.8 · High EPSS 1.18% · P67

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-26635

Vulnerability Information
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Vulnerability Title
Bandisoft ARK Library buffer overflow vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
In the code that verifies the file size in the ark library, it is possible to manipulate the offset read from the target file due to the wrong use of the data type. An attacker could use this vulnerability to cause a stack buffer overflow and as a result, perform an attack such as remote code execution.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Bandisoft ARK library 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bandisoft ARK library是韩国Bandisoft公司的一个解压Windows、macOS、Linux等各种OS环境中现有的ZIP、RAR、ALZ、EGG等大多数压缩格式的库，并创建ZIP/7Z格式的压缩文件。 Bandisoft ARK library 7.17之前的版本存在缓冲区错误漏洞，该漏洞源于在ark 库中校验文件大小的代码中数据类型使用错误，攻击者利用该漏洞可以执行远程代码。
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

Vendor Product Affected Versions CPE Subscribe
Bandisoft International Inc. ark library unspecified ~ 7.17 -

II. Public POCs for CVE-2021-26635

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III. Intelligence Information for CVE-2021-26635

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Other References for CVE-2021-26635 (1)

IV. Related Vulnerabilities

Same vendor: Bandisoft International Inc.
Same weakness: CWE-121

V. Comments for CVE-2021-26635

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