Serialization Gadget Vulnerability in FasterXML Jackson-Databind
CVE-2020-35728

8.1HIGH

Key Information:

Vendor

Fasterxml

Status
Jackson-databind
Vendor
CVE Published:
27 December 2020

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 39%

What is CVE-2020-35728?

The FasterXML Jackson-Databind library versions prior to 2.9.10.8 have a vulnerability that arises from incorrect handling of serialization gadgets and type interactions. This issue is linked to the JNDIConnectionPool within the embedded Xalan library in Java EE. The exploitation of this vulnerability could lead to unexpected processing behavior and may expose systems to various serialization attacks. It is crucial for users to apply the recommended security updates to mitigate potential risks.

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Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2020-35728
Created by Al1ex

References

https://medium.com/%40cowtowncoder/on-jackson-cves-dont-p...
x_refsource_MISC
https://github.com/FasterXML/jackson-databind/issues/2999
x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2021/04/msg0...
mailing-listx_refsource_MLIST

EPSS Score

39% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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