Auth bypass in IBM Infosphere Change Data Capture
CVE-2020-4821
IBM InfoSphere Data Replication 11.4 and IBM InfoSphere Change Data Capture for z/OS 10.2.1, under certain configurations, could allow a user to bypass authentication mechanisms using an empty password string. IBM X-Force ID: 189834
Vulnerability class: Broken Authentication
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.020 (80.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 80th percentile — 80.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.020 · newest: 0.020 · change: 0.000
Affected products
- IBM Infosphere Change Data Capture — versions 10.2.1, 11.3.3, 11.4
- IBM Infosphere Change Data Capture For Z/os — versions 10.2.1
- IBM Infosphere Data Replication — versions 11.4
- IBM Infosphere Data Replication — versions 11.4, 11.4.0
Weakness classification (CWE)
References
- www.ibm.com/support/pages/node/6472911 (Patch, Vendor Advisory)
- www.ibm.com/support/pages/node/6472909 (Patch, Vendor Advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/189834 (VDB Entry, vdb-entry, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-4821?
- CVE-2020-4821 is a critical-severity vulnerability in IBM Infosphere Change Data Capture, classified under Improper Authentication. CVSS score: 9.8/10. Published 2021-07-16.
- How severe is CVE-2020-4821?
- Critical severity. CVSS v3 base score is 9.8 out of 10.