CVE-2019-12760
Last modified
CVE-2019-12760 is a low-severity vulnerability rated 3.3/10 on the CVSS scale. 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. EPSS estimates a 1.52% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Parso Project | Parso | <= 0.4.0 |
References
- https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7Exploit, Third Party Advisory
- https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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