Vulnerability in Apache Log4j
CVE-2020-9488
Improper validation of certificate with host mismatch in Apache Log4j SMTP appender. This could allow an SMTPS connection to be intercepted by a man-in-the-middle attack which could leak any log messages sent through that appender. Fixed i…
Vulnerability class: Improper Certificate Validation
EPSS: 0.000 (8.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Apache Log4j — versions log4j-core 2.13.0, log4j-core
- Apache Log4j
- Oracle Communications_application_session_controller — versions 3.9m0p1
- Oracle Communications_billing_and_revenue_management — versions 7.5.0.23.0, 12.0.0.3.0
- Oracle Communications_eagle_ftp_table_base_retrieval — versions 4.5
- Oracle Communications_offline_mediation_controller — versions 12.0.0.3.0
- Oracle Communications_services_gatekeeper — versions 7.0
- Oracle Communications_unified_inventory_management — versions 7.3.0, 7.4.0
- Oracle Data_integrator — versions 12.2.1.3.0, 12.2.1.4.0
- Oracle Enterprise_manager_for_peoplesoft — versions 13.4.1.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- 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 (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
- security@apache.org (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2020-9488?
- CVE-2020-9488 is a low-severity vulnerability in Apache Log4j, classified under Improper Certificate Validation. CVSS score: 3.7/10. Published 2020-04-27.
- How severe is CVE-2020-9488?
- Low severity. CVSS v3 base score is 3.7 out of 10.
- Is CVE-2020-9488 known to be exploited?
- 24 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.