FreeBSD : rssh - multiple vulnerabilities (d193aa9f-3f8c-11e9-9a24-6805ca0b38e8)

critical Nessus Plugin ID 122658

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Synopsis

The remote FreeBSD host is missing a security-related update.

Description

NVD reports :

rssh version 2.3.4 contains a CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection') vulnerability in allowscp permission that can result in Local command execution.
This attack appear to be exploitable via An authorized SSH user with the allowscp permission.

Insufficient sanitization of arguments passed to rsync can bypass the restrictions imposed by rssh, a restricted shell that should restrict users to perform only rsync operations, resulting in the execution of arbitrary shell commands.

Solution

Update the affected package.

See Also

http://www.nessus.org/u?176eafad

http://www.nessus.org/u?cdb3cb7b

Plugin Details

Severity: Critical

ID: 122658

File Name: freebsd_pkg_d193aa9f3f8c11e99a246805ca0b38e8.nasl

Version: 1.2

Type: local

Published: 3/7/2019

Updated: 2/6/2020

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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 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:freebsd:freebsd:rssh, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 3/6/2019

Vulnerability Publication Date: 2/4/2019

Reference Information

CVE: CVE-2019-1000018, CVE-2019-3463, CVE-2019-3464