RancherOS < 1.1.3 Information Disclosure

medium Nessus Plugin ID 132250
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VPR Score: 7.7

Synopsis

The remote device is missing a vendor-supplied security patch

Description

The remote host is running a version of RancherOS that is prior to v1.1.3, hence is vulnerable to local privilege-escalation vulnerability. An attacker can exploit this issue to cause a denial-of-service condition.

Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis of the data cache.

Solution

Upgrade to RancherOS v1.1.3 or later

See Also

https://rancher.com/docs/os/v1.x/en/about/security/

https://github.com/rancher/os/releases/tag/v1.1.3

Plugin Details

Severity: Medium

ID: 132250

File Name: rancheros_1_1_3.nasl

Version: 1.4

Type: local

Family: Misc.

Published: 12/19/2019

Updated: 8/19/2020

Dependencies: ssh_get_info.nasl, os_fingerprint_linux_distro.nasl

Risk Information

Risk Factor: Medium

VPR Score: 7.7

CVSS Score Source: CVE-2017-5754

CVSS v2.0

Base Score: 4.7

Temporal Score: 4.1

Vector: AV:L/AC:M/Au:N/C:C/I:N/A:N

Temporal Vector: E:H/RL:OF/RC:C

CVSS v3.0

Base Score: 5.6

Temporal Score: 5.4

Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N

Temporal Vector: E:H/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: 1/5/2018

Vulnerability Publication Date: 1/4/2018

Reference Information

CVE: CVE-2017-5754

BID: 102378