Ubuntu 18.10 : Paramiko vulnerability (USN-3796-3)

high Nessus Plugin ID 118326

Synopsis

The remote Ubuntu host is missing one or more security-related patches.

Description

USN-3796-1 fixed a vulnerability in Paramiko. This update provides the corresponding update for Ubuntu 18.10.

Daniel Hoffman discovered that Paramiko incorrectly handled authentication when being used as a server. A remote attacker could use this issue to bypass authentication without any credentials.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected python-paramiko and / or python3-paramiko packages.

See Also

https://usn.ubuntu.com/3796-3/

Plugin Details

Severity: High

ID: 118326

File Name: ubuntu_USN-3796-3.nasl

Version: 1.6

Type: local

Agent: unix

Published: 10/23/2018

Updated: 2/4/2022

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P

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

CVSS Score Source: CVE-2018-1000805

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

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

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:python-paramiko, p-cpe:/a:canonical:ubuntu_linux:python3-paramiko, cpe:/o:canonical:ubuntu_linux:18.10

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 10/22/2018

Vulnerability Publication Date: 10/8/2018

Reference Information

CVE: CVE-2018-1000805

USN: 3796-3