FasterXML jackson-databind up to 2.9.8 Default Typing information disclosure

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 (≈)
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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.
7.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in FasterXML jackson-databind up to 2.9.8. Affected is an unknown function of the component Default Typing. This manipulation causes information disclosure. This vulnerability is handled as CVE-2019-12086. The attack can be initiated remotely. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in FasterXML jackson-databind up to 2.9.8 (Programming Language Software) and classified as critical. Affected by this vulnerability is some unknown processing of the component Default Typing. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x before 2.9.9. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint, the service has the mysql-connector-java jar (8.0.14 or earlier) in the classpath, and an attacker can host a crafted MySQL server reachable by the victim, an attacker can send a crafted JSON message that allows them to read arbitrary local files on the server. This occurs because of missing com.mysql.cj.jdbc.admin.MiniAdmin validation.

The bug was discovered 05/11/2019. The weakness was released 05/17/2019 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is known as CVE-2019-12086 since 05/13/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 6 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 236644 (Alibaba Cloud Linux 3 : 0020: pki-core:10.6 (ALINUX3-SA-2021:0020)), which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176909 (Debian Security Update for jackson-databind (DSA 4452-1)).

Upgrading to version 2.9.9 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (236644) and SecurityFocus (BID 106601†). Entries connected to this vulnerability are available at VDB-125389, VDB-125417, VDB-128614 and VDB-128615. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236644
Nessus Name: Alibaba Cloud Linux 3 : 0020: pki-core:10.6 (ALINUX3-SA-2021:0020)

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: jackson-databind 2.9.9

Timelineinfo

07/27/2018 🔍
05/11/2019 +288 days 🔍
05/13/2019 +2 days 🔍
05/17/2019 +4 days 🔍
05/18/2019 +1 days 🔍
05/19/2025 +2192 days 🔍

Sourcesinfo

Advisory: RHSA-2019:2858
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-12086 (🔍)
GCVE (CVE): GCVE-0-2019-12086
GCVE (VulDB): GCVE-100-135211
SecurityFocus: 106601 - FasterXML Jackson-databind CVE-2018-14718 Remote Code Execution Vulnerability

See also: 🔍

Entryinfo

Created: 05/18/2019 09:27
Updated: 05/19/2025 00:07
Changes: 05/18/2019 09:27 (63), 06/13/2020 16:19 (4), 09/21/2023 22:04 (4), 05/19/2025 00:07 (21)
Complete: 🔍
Cache ID: 216:362:103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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