VDB-149864 · CVE-2020-8840 · sa-20200610-01

FasterXML jackson-databind up to 2.9.10.2 deserialization

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
9.8	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in FasterXML jackson-databind up to 2.9.10.2. Affected by this vulnerability is an unknown functionality. Such manipulation leads to deserialization. This vulnerability is traded as CVE-2020-8840. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in FasterXML jackson-databind up to 2.9.10.2 (Programming Language Software) and classified as very critical. Affected by this issue is an unknown functionality. The manipulation with an unknown input leads to a deserialization vulnerability. Using CWE to declare the problem leads to CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Impacted is confidentiality, integrity, and availability. CVE summarizes:

FasterXML jackson-databind 2.0.0 through 2.9.10.2 lacks certain xbean-reflect/JNDI blocking, as demonstrated by org.apache.xbean.propertyeditor.JndiConverter.

The weakness was shared 02/10/2020. This vulnerability is handled as CVE-2020-8840 since 02/10/2020. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 02/25/2025).

The vulnerability scanner Nessus provides a plugin with the ID 216682 (RHEL 7 : Red Hat JBoss Enterprise Application Platform 7.1.9 on RHEL 7 (RHSA-2025:1746)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (216682). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Programming Language Software

Vendor

FasterXML

Name

jackson-databind

Version

License

open-source

Website

Product: https://github.com/FasterXML/jackson-databind/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.8

VulDB Base Score: 9.8
VulDB Temp Score: 9.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 216682
Nessus Name: RHEL 7 : Red Hat JBoss Enterprise Application Platform 7.1.9 on RHEL 7 (RHSA-2025:1746)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/10/2020 🔍
02/10/2020 +0 days 🔍
02/11/2020 +1 days 🔍
02/25/2025 +1841 days 🔍

Sourcesinfo

Product: github.com

Advisory: sa-20200610-01
Status: Not defined

CVE: CVE-2020-8840 (🔍)
GCVE (CVE): GCVE-0-2020-8840
GCVE (VulDB): GCVE-100-149864

Entryinfo

Created: 02/11/2020 07:24
Updated: 02/25/2025 19:46
Changes: 02/11/2020 07:24 (34), 02/11/2020 07:29 (18), 03/29/2024 12:16 (18), 03/29/2024 12:23 (1), 02/25/2025 19:46 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.