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CVE-2020-36185

CVE-2020-36185: Unsafe Deserialization in jackson-databind

8.1

CVSS Score
3.1

Basic Information

CVE ID
CVE-2020-36185
GHSA ID
GHSA-8w26-6f25-cm9x
EPSS Score
0.82648%
CWE
CWE-502
Published
12/9/2021
Updated
9/14/2023
KEV Status
No
Technology
TechnologyJava

Technical Details

CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Package NameEcosystemVulnerable VersionsFirst Patched Version
com.fasterxml.jackson.core:jackson-databindmaven>= 2.0.0, < 2.9.10.82.9.10.8

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The patch modifies the SubTypeValidator class to include additional classes that should not be deserialized, directly relating to the deserialization vulnerability. The isValidSubType method is key to this validation process.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

WAF Protection Rules

WAF Rule

**st*rXML j**kson-**t**in* *.x ***or* *.*.**.* mis**n*l*s t** int*r**tion **tw**n s*ri*liz*tion *****ts *n* typin*, r*l*t** to `or*.*p****.tom**t.***p.***p*.**t*sour**s.S**r**Pool**t*Sour**`.

Reasoning

T** p*t** mo*i*i*s t** `Su*Typ*V*li**tor` *l*ss to in*lu** ***ition*l *l*ss*s t**t s*oul* not ** **s*ri*liz**, *ir**tly r*l*tin* to t** **s*ri*liz*tion vuln*r**ility. T** `isV*li*Su*Typ*` m*t*o* is k*y to t*is v*li**tion pro**ss.