cve/2019/CVE-2019-12760.md

### [CVE-2019-12760](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12760)
![](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

** DISPUTED ** A deserialization vulnerability exists in the way parso through 0.4.0 handles grammar parsing from the cache. Cache loading relies on pickle and, provided that an evil pickle can be written to a cache grammar file and that its parsing can be triggered, this flaw leads to Arbitrary Code Execution. NOTE: This is disputed because "the cache directory is not under control of the attacker in any common configuration."

### POC

#### Reference
- https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7
- https://github.com/davidhalter/parso/issues/75

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