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jackson-databind vulnerable to remote code execution due to incorrect deserialization and blocklist bypass

Critical severity GitHub Reviewed Published Oct 18, 2018 to the GitHub Advisory Database • Updated Mar 1, 2024

Package

maven com.fasterxml.jackson.core:jackson-databind (Maven)

Affected versions

>= 2.9.0, < 2.9.4
>= 2.8.0, < 2.8.11
< 2.7.9.2

Patched versions

2.9.4
2.8.11
2.7.9.2

Description

FasterXML jackson-databind through 2.8.10 and 2.9.x through 2.9.3 allows unauthenticated remote code execution because of an incomplete fix for the CVE-2017-7525 deserialization flaw. This is exploitable by sending maliciously crafted JSON input to the readValue method of the ObjectMapper, bypassing a blacklist that is ineffective if the Spring libraries are available in the classpath.

References

Published by the National Vulnerability Database Jan 10, 2018
Published to the GitHub Advisory Database Oct 18, 2018
Reviewed Jun 16, 2020
Last updated Mar 1, 2024

Severity

Critical

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS score

13.977%
(96th percentile)

Weaknesses

CVE ID

CVE-2017-17485

GHSA ID

GHSA-rfx6-vp9g-rh7v

Source code

Credits

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