Vulnerability in Apache Calcite
CVE-2020-13955
HttpUtils#getURLConnection method disables explicitly hostname verification for HTTPS connections making clients vulnerable to man-in-the-middle attacks. Calcite uses internally this method to connect with Druid and Splunk so information leakage may happen when using the respective Calcite adapters. The method itself is in a utility class so people may use it to create vulnerable HTTPS connections for other applications. From Apache Calcite 1.26 onwards, the hostname verification will be performed using the default JVM truststore.
Vulnerability class: Improper Certificate Validation
EPSS: 0.021 (80.8th percentile) — read the EPSS interpretation.
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.
Affected products
- Apache Calcite
- N/a Apache Calcite — versions Apache Calcite 0.8 to 1.25
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (Mailing List, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-13955?
- CVE-2020-13955 is a medium-severity vulnerability in Apache Calcite, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2020-10-09.
- How severe is CVE-2020-13955?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2020-13955 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.