cve/2021/CVE-2021-31798.md

### [CVE-2021-31798](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31798)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

The effective key space used to encrypt the cache in CyberArk Credential Provider prior to 12.1 has low entropy, and under certain conditions a local malicious user can obtain the plaintext of cache files.

### POC

#### Reference
- http://packetstormsecurity.com/files/164035/CyberArk-Credential-Provider-Local-Cache-Decryption.html
- http://seclists.org/fulldisclosure/2021/Sep/3
- https://korelogic.com/Resources/Advisories/KL-001-2021-010.txt

#### Github
No PoCs found on GitHub currently.