Detections
Analytics
RHCOS 4 : OpenShift Container Platform 4.14.4 (RHSA-2023:7473)
high Nessus Plugin ID 189458
Language:
Synopsis
The remote Red Hat CoreOS host is missing one or more security updates for OpenShift Container Platform 4.14.4.Description
The remote Red Hat Enterprise Linux CoreOS 4 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2023:7473 advisory.- Werkzeug is a comprehensive WSGI web application library. Prior to version 2.2.3, Werkzeug's multipart form data parser will parse an unlimited number of parts, including file parts. Parts can be a small amount of bytes, but each requires CPU time to parse and may use more memory as Python data. If a request can be made to an endpoint that accesses `request.data`, `request.form`, `request.files`, or `request.get_data(parse_form_data=False)`, it can cause unexpectedly high resource usage. This allows an attacker to cause a denial of service by sending crafted multipart data to an endpoint that will parse it.
The amount of CPU time required can block worker processes from handling legitimate requests. The amount of RAM required can trigger an out of memory kill of the process. Unlimited file parts can use up memory and file handles. If many concurrent requests are sent continuously, this can exhaust or kill all available workers. Version 2.2.3 contains a patch for this issue. (CVE-2023-25577)
- HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x before 2.7.10, and 2.8.x before 2.8.2 forwards empty Content-Length headers, violating RFC 9110 section 8.6. In uncommon cases, an HTTP/1 server behind HAProxy may interpret the payload as an extra request. (CVE-2023-40225)
- Werkzeug is a comprehensive WSGI web application library. If an upload of a file that starts with CR or LF and then is followed by megabytes of data without these characters: all of these bytes are appended chunk by chunk into internal bytearray and lookup for boundary is performed on growing buffer. This allows an attacker to cause a denial of service by sending crafted multipart data to an endpoint that will parse it.
The amount of CPU time required can block worker processes from handling legitimate requests. This vulnerability has been patched in version 3.0.1. (CVE-2023-46136)
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 RHCOS OpenShift Container Platform 4.14.4 packages based on the guidance in RHSA-2023:7473.See Also
https://access.redhat.com/security/cve/CVE-2023-25577
https://access.redhat.com/security/cve/CVE-2023-40225
Plugin Details
Severity: High
ID: 189458
File Name: rhcos-RHSA-2023-7473.nasl
Version: 1.1
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 1/24/2024
Updated: 4/17/2024
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.8
Vendor
Vendor Severity: Important
CVSS v2
Risk Factor: Medium
Base Score: 6.4
Temporal Score: 5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N
CVSS Score Source: CVE-2023-40225
CVSS v3
Risk Factor: High
Base Score: 7.2
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:redhat:enterprise_linux:8:coreos, p-cpe:/a:redhat:enterprise_linux:haproxy26
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 11/29/2023
Vulnerability Publication Date: 2/14/2023