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I. Basic Information for CVE-2021-32840
Vulnerability Information

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Vulnerability Title
Path Traversal in SharpZipLib
Source: NVD (National Vulnerability Database)
Vulnerability Description
SharpZipLib (or #ziplib) is a Zip, GZip, Tar and BZip2 library. Prior to version 1.3.3, a TAR file entry `../evil.txt` may be extracted in the parent directory of `destFolder`. This leads to arbitrary file write that may lead to code execution. The vulnerability was patched in version 1.3.3.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
SharpZipLib 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SharpZipLib(#ziplib,前称NZipLib)是ICSharpCode(Icsharpcode)团队的一个开源的用在.NET平台中的C#压缩解压库,它支持解压和压缩Zip、GZip、BZip2、Tar等格式的文件。 SharpZipLib 存在安全漏洞,该漏洞源于可以在 `destFolder` 的父目录中提取 TAR 文件条目 `../evil.txt`。 这会导致可能导致代码执行的任意文件写入。
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
VendorProductAffected VersionsCPESubscribe
icsharpcodesharpziplib 1.3.3 ~ 1.3.3 -
II. Public POCs for CVE-2021-32840
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III. Intelligence Information for CVE-2021-32840
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