FasterXML jackson-databind up to 2.9.9 Default Typing JSON Message File information disclosure

Summaryinfo

A vulnerability marked as problematic has been reported in FasterXML jackson-databind up to 2.9.9. The impacted element is an unknown function of the component Default Typing. This manipulation as part of JSON Message causes information disclosure (File). This vulnerability appears as CVE-2019-12814. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic was found in FasterXML jackson-databind up to 2.9.9 (Programming Language Software). Affected by this vulnerability is an unknown code of the component Default Typing. The manipulation as part of a JSON Message leads to a information disclosure vulnerability (File). 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. The summary by CVE is:

A Polymorphic Typing issue was discovered in FasterXML jackson-databind 2.x through 2.9.9. When Default Typing is enabled (either globally or for a specific property) for an externally exposed JSON endpoint and the service has JDOM 1.x or 2.x jar in the classpath, an attacker can send a specifically crafted JSON message that allows them to read arbitrary local files on the server.

The weakness was presented 06/19/2019 (GitHub Repository). The advisory is shared at github.com. This vulnerability is known as CVE-2019-12814 since 06/13/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

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.

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 (236644). See VDB-143760 and VDB-148943 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Programming Language Software

Vendor

• FasterXML

Name

• jackson-databind

Version

• 2.9.0
• 2.9.1
• 2.9.2
• 2.9.3
• 2.9.4
• 2.9.5
• 2.9.6
• 2.9.7
• 2.9.8
• 2.9.9

License

• open-source

Website

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

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion