Deserialization in Apache Shardingsphere
CVE-2020-1947
In Apache ShardingSphere(incubator) 4.0.0-RC3 and 4.0.0, the ShardingSphere's web console uses the SnakeYAML library for parsing YAML inputs to load datasource configuration. SnakeYAML allows to unmarshal data to a Java type By using the YAML tag. Unmarshalling untrusted data can lead to security flaws of RCE.
Vulnerability class: Insecure Deserialization
EPSS: 0.339 (98.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Apache Shardingsphere — versions 4.0.0
- Apache Software Foundation Shardingsphere(incubator) — versions 4.0.0-RC3, 4.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (x_refsource_CONFIRM, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-1947?
- CVE-2020-1947 is a critical-severity vulnerability in Apache Shardingsphere, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2020-03-11.
- How severe is CVE-2020-1947?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-1947 known to be exploited?
- 45 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.