Auth bypass in Hazelcast
CVE-2020-26168
The LDAP authentication method in LdapLoginModule in Hazelcast IMDG Enterprise 4.x before 4.0.3, and Jet Enterprise 4.x through 4.2, doesn't verify properly the password in some system-user-dn scenarios. As a result, users (clients/members) can be authenticated even if they provide invalid passwords.
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: 0.016 (74.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 75th percentile — 74.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.016 · newest: 0.016 · change: 0.000
Affected products
Weakness classification (CWE)
References
- docs.hazelcast.org/docs/ern/index.html (Release Notes, Vendor Advisory)
- jet-start.sh/blog/2020/10/23/jet-43-is-released (Vendor Advisory)
- hazelcast.zendesk.com/hc/en-us/articles/360050161951--IMDG-Enterprise-4-0-4-0-1… (Vendor Advisory)
- hazelcast.zendesk.com/hc/en-us/articles/360051384932--JET-Enterprise-4-0-4-1-4-… (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-26168?
- CVE-2020-26168 is a critical-severity vulnerability in Hazelcast, classified under Improper Authentication. CVSS score: 9.8/10. Published 2020-11-09.
- How severe is CVE-2020-26168?
- Critical severity. CVSS v3 base score is 9.8 out of 10.