CVE-2019-12760

Public Exploit

Description

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.

Category

3.3
CVSS
Severity: Low
CVSS 3.1 •
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.66% Top 30%
Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7 third party advisory exploit
https://github.com/davidhalter/parso/issues/75

Frequently Asked Questions

What is the severity of CVE-2019-12760?
CVE-2019-12760 has been scored as a low severity vulnerability.
How to fix CVE-2019-12760?
To fix CVE-2019-12760, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2019-12760 being actively exploited in the wild?
It is possible that CVE-2019-12760 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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