CVE-2019-12086
Publication date 17 May 2019
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
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.
From the Ubuntu Security Team
It was discovered that Jackson Databind incorrectly handled deserialization. An attacker could possibly use this issue to obtain sensitive information.
Status
Package | Ubuntu Release | Status |
---|---|---|
jackson-databind | 24.10 oracular |
Fixed 2.9.8-2
|
24.04 LTS noble |
Fixed 2.9.8-2
|
|
22.04 LTS jammy |
Fixed 2.9.8-2
|
|
20.04 LTS focal |
Fixed 2.9.8-2
|
|
18.04 LTS bionic |
Vulnerable
|
|
16.04 LTS xenial |
Fixed 2.4.2-3ubuntu0.1~esm2
|
|
14.04 LTS trusty |
Needs evaluation
|
|
jackson-jr | 24.10 oracular |
Not affected
|
24.04 LTS noble |
Not affected
|
|
22.04 LTS jammy |
Not affected
|
|
20.04 LTS focal |
Not affected
|
|
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release |
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Get Ubuntu ProSeverity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 · High |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | None |
Availability impact | None |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
References
Related Ubuntu Security Notices (USN)
- USN-4813-1
- Jackson Databind vulnerabilities
- 15 March 2021
Other references
- http://russiansecurity.expert/2016/04/20/mysql-connect-file-read/
- https://github.com/FasterXML/jackson-databind/issues/2326
- https://github.com/FasterXML/jackson/wiki/Jackson-Release-2.9.9
- https://medium.com/@cowtowncoder/on-jackson-cves-dont-panic-here-is-what-you-need-to-know-54cd0d6e8062
- https://www.cve.org/CVERecord?id=CVE-2019-12086