Vulnerability Details : CVE-2019-12760
Potential exploit
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.
Products affected by CVE-2019-12760
- cpe:2.3:a:parso_project:parso:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-12760
0.67%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 69 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-12760
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.0
|
MEDIUM | AV:N/AC:M/Au:S/C:P/I:P/A:P |
6.8
|
6.4
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
1.6
|
5.9
|
NIST | |
|
3.3
|
LOW | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N |
0.7
|
2.5
|
134c704f-9b21-4f2e-91b3-4a467353bcc0 | 2024-07-03 |
CWE ids for CVE-2019-12760
-
The product deserializes untrusted data without sufficiently ensuring that the resulting data will be valid.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-12760
-
https://gist.github.com/dhondta/f71ae7e5c4234f8edfd2f12503a5dcc7
Proof-of-Concept for Python parso Cache Load Vulnerability · GitHubExploit;Third Party Advisory
-
https://github.com/davidhalter/parso/issues/75
Deserialization vulnerability (CVE-2019-12760) · Issue #75 · davidhalter/parso · GitHub
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