Deserialization in Apache Nifi
CVE-2021-20190
A flaw was found in jackson-databind before 2.9.10.7. FasterXML mishandles the interaction between serialization gadgets and typing. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Vulnerability class: Insecure Deserialization
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.076 (94.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 94th percentile — 94.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.075 · newest: 0.076 · change: +0.001
Affected products
- Apache Nifi
- Fasterxml Jackson-Databind
- NetApp Active Iq Unified Manager
- NetApp Oncommand API Services
- NetApp Oncommand Insight
- NetApp Service Level Manager
- Oracle Commerce Experience Manager — versions 11.3.2
- Oracle Commerce Guided Search — versions 11.3.2
- Oracle Commerce Guided Search And Experience Manager — versions 11.3.2
- Debian Linux — versions 9.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/FasterXML/jackson-databind/issues/2854 (Patch, Third Party Advisory)
- bugzilla.redhat.com/show_bug.cgi (Patch, Third Party Advisory, Issue Tracking)
- lists.apache.org/thread.html/r380e9257bacb8551ee6fcf2c59890ae9477b2c78e553fa9ea… (mailing-list, Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/04/msg00025.html (mailing-list, Mailing List, Third Party Advisory)
- www.oracle.com//security-alerts/cpujul2021.html (Third Party Advisory)
- security.netapp.com/advisory/ntap-20210219-0008/ (Third Party Advisory)
Frequently asked questions
- What is CVE-2021-20190?
- CVE-2021-20190 is a high-severity vulnerability in Apache Nifi, classified under Deserialization of Untrusted Data. CVSS score: 8.1/10. Published 2021-01-19.
- How severe is CVE-2021-20190?
- High severity. CVSS v3 base score is 8.1 out of 10.
- Is CVE-2021-20190 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.