RancherOS < 1.4.1 Multiple Information Disclosure Vulnerabilities
medium Nessus Plugin ID 132253
Language:
New! Plugin Severity Now Using CVSS v3
The calculated severity for Plugins has been updated to use CVSS v3 by default. Plugins that do not have a CVSS v3 score will fall back to CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
Synopsis
The remote device is missing a vendor-supplied security patchDescription
The remote host is running a version of RancherOS prior to v1.4.1, hence is exposed to multiple side-channel vulnerabilities:- Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access via a terminal page fault and a side-channel analysis. (CVE-2018-3620)
- Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB), Variant 4.
(CVE-2018-3639)
Solution
Upgrade to RancherOS v1.4.1 or laterSee Also
Plugin Details
Severity: Medium
ID: 132253
File Name: rancheros_1_4_1.nasl
Version: 1.5
Type: local
Family: Misc.
Published: 12/19/2019
Updated: 4/15/2021
Dependencies: ssh_get_info.nasl, os_fingerprint_linux_distro.nasl
Risk Information
CVSS Score Source: CVE-2018-3620
VPR
Risk Factor: High
Score: 7.2
CVSS v2
Risk Factor: Medium
Base Score: 4.7
Temporal Score: 3.7
Vector: AV:L/AC:M/Au:N/C:C/I:N/A:N
Temporal Vector: E:POC/RL:OF/RC:C
CVSS v3
Risk Factor: Medium
Base Score: 5.6
Temporal Score: 5.1
Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
Temporal Vector: E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:rancher:rancheros
Required KB Items: Host/local_checks_enabled, Host/RancherOS/version, Host/RancherOS
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 9/19/2018
Vulnerability Publication Date: 5/22/2018
Reference Information
CVE: CVE-2018-3620, CVE-2018-3639