### [CVE-2021-32840](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32840)
![](https://img.shields.io/static/v1?label=Product&message=sharpziplib&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=0.86.0%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Version&message=1.3.3%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-22%20Improper%20Limitation%20of%20a%20Pathname%20to%20a%20Restricted%20Directory%20('Path%20Traversal')&color=brightgreen)

### 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.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon