Deserialization in Fasterxml Jackson-Databind
CVE-2019-12814
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.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.109 (95.7th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.109 · newest: 0.109 · change: 0.000
Affected products
- Fasterxml Jackson-Databind
- Debian Linux — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.debian.org/debian-lts-announce/2019/06/msg00019.html (mailing-list, Mailing List, Third Party Advisory)
- lists.apache.org/thread.html/1e04d9381c801b31ab28dec813c31c304b2a596b2a3707fa54… (mailing-list)
- lists.apache.org/thread.html/a78239b1f11cddfa86e4edee19064c40b6272214630bfef070… (mailing-list)
- lists.apache.org/thread.html/15a55e1d837fa686db493137cc0330c7ee1089ed9a9eea7ae7… (mailing-list)
- lists.apache.org/thread.html/129da0204c876f746636018751a086cc581e0e07bcdeb3ee22… (mailing-list)
- lists.apache.org/thread.html/4b832d1327703d6b287a6d223307f8f884d798821209a10647… (mailing-list)
- lists.apache.org/thread.html/a62aa2706105d68f1c02023fe24aaa3c13b4d8a1826181fed0… (mailing-list)
- lists.apache.org/thread.html/8fe2983f6d9fee0aa737e4bd24483f8f5cf9b938b9adad0c4e… (mailing-list)
- lists.apache.org/thread.html/a3ae8a8c5e32c413cd27071d3a204166050bf79ce7f1299f68… (mailing-list)
- lists.apache.org/thread.html/b148fa2e9ef468c4de00de255dd728b74e2a97d935f8ced31e… (mailing-list)
Frequently asked questions
- What is CVE-2019-12814?
- CVE-2019-12814 is a medium-severity vulnerability in Fasterxml Jackson-Databind, classified under Deserialization of Untrusted Data. CVSS score: 5.9/10. Published 2019-06-19.
- How severe is CVE-2019-12814?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2019-12814 known to be exploited?
- 16 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.