Vulnerability in Apache Kafka
CVE-2021-38153
Some components in Apache Kafka use `Arrays.equals` to validate a password or key, which is vulnerable to timing attacks that make brute force attacks for such credentials more likely to be successful. Users should upgrade to 2.8.1 or higher, or 3.0.0 or higher where this vulnerability has been fixed. The affected versions include Apache Kafka 2.0.0, 2.0.1, 2.1.0, 2.1.1, 2.2.0, 2.2.1, 2.2.2, 2.3.0, 2.3.1, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.6.0, 2.6.1, 2.6.2, 2.7.0, 2.7.1, and 2.8.0.
EPSS: 0.063 (93.2th 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 Kafka — versions 2.8.0
- Apache Software Foundation Kafka — versions Apache Kafka 2.0.x, Apache Kafka 2.1.x, Apache Kafka 2.2.x
- Oracle Communications_brm_-_elastic_charging_engine — versions 12.0.0.5.0
- Oracle Communications_cloud_native_core_policy — versions 1.15.0
- Oracle Financial_services_analytical_applications_infrastructure
- Oracle Financial_services_behavior_detection_platform — versions 8.1.1.0, 8.1.1.1, 8.1.2.0
- Oracle Financial_services_enterprise_case_management — versions 8.0.7.1, 8.0.7.2, 8.0.8.0
- Oracle Primavera_unifier — versions 18.8, 19.12, 20.12
- Quarkus
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (x_refsource_MISC, Vendor Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (Third Party Advisory, x_refsource_MISC)
- security@apache.org (Patch, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-38153?
- CVE-2021-38153 is a medium-severity vulnerability in Apache Kafka, classified under Observable Discrepancy. CVSS score: 5.9/10. Published 2021-09-22.
- How severe is CVE-2021-38153?
- Medium severity. CVSS v3 base score is 5.9 out of 10.
- Is CVE-2021-38153 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.