Deserialization in Apache Log4j
CVE-2017-5645
In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrar…
Vulnerability class: Insecure Deserialization
EPSS: 0.940 (99.9th percentile) — read the EPSS interpretation.
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.
Affected products
- Apache Log4j
- Apache Software Foundation Log4j — versions All versions between 2.0-alpha1 and 2.8.1
- Netapp Oncommand_api_services
- Netapp Oncommand_insight
- Netapp Oncommand_workflow_automation
- Netapp Service_level_manager
- Netapp Snapcenter
- Netapp Storage_automation_store
- Oracle Api_gateway — versions 11.1.2.4.0
- Oracle Application_testing_suite — versions 13.3.0.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- security@apache.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@apache.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-5645?
- CVE-2017-5645 is a critical-severity vulnerability in Apache Log4j, classified under Deserialization of Untrusted Data. CVSS score: 9.8/10. Published 2017-04-17.
- How severe is CVE-2017-5645?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2017-5645 known to be exploited?
- 51 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.