Detections
Analytics
RHEL 7 : log4j (RHSA-2017:2423)
critical Nessus Plugin ID 102348
Language:
Synopsis
The remote Red Hat host is missing one or more security updates for log4j.Description
The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:2423 advisory.Log4j is a tool to help the programmer output log statements to a variety of output targets.
Security Fix(es):
* It was found that when using remote logging with log4j socket server the log4j server would deserialize any log event received via TCP or UDP. An attacker could use this flaw to send a specially crafted log event that, during deserialization, would execute arbitrary code in the context of the logger application.
(CVE-2017-5645)
Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Update the RHEL log4j package based on the guidance in RHSA-2017:2423.See Also
http://www.nessus.org/u?47a0ebb3
https://access.redhat.com/errata/RHSA-2017:2423
https://access.redhat.com/security/updates/classification/#important
Plugin Details
Severity: Critical
ID: 102348
File Name: redhat-RHSA-2017-2423.nasl
Version: 3.16
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 8/10/2017
Updated: 4/29/2025
Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: High
Base Score: 7.5
Temporal Score: 5.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS Score Source: CVE-2019-17571
CVSS v3
Risk Factor: Critical
Base Score: 9.8
Temporal Score: 8.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:log4j-manual, p-cpe:/a:redhat:enterprise_linux:log4j-javadoc, p-cpe:/a:redhat:enterprise_linux:log4j, cpe:/o:redhat:enterprise_linux:7
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Ease: No known exploits are available
Patch Publication Date: 8/7/2017
Vulnerability Publication Date: 4/17/2017
Reference Information
CVE: CVE-2017-5645, CVE-2019-17571