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
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: 0.021 (81.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.021 · newest: 0.021 · change: 0.000
Affected products
- Apache Calcite
- Apache Calcite — versions Apache Calcite 0.8 to 1.25
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.apache.org/thread.html/r0b0fbe2038388175951ce1028182d980f9e9a7328be13d52d… (Mailing List, Third Party Advisory)
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.