Flask < 0.12.3 Denial of Service Vulnerability

high Nessus Plugin ID 119778

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Synopsis

A web development framework on the remote host is affected by a denial of service vulnerability.

Description

The version of Pallets Flask on the remote host is prior to 0.12.3.
It is, therefore, affected by a denial of service vulnerability in the JSON decoding process due to improper input validation. An unauthenticated attacker can exploit this issue by providing JSON data in a non-text related encoding, which could result in unexpected memory use.

Solution

Upgrade to Flask version 0.12.3 or later.

Plugin Details

Severity: High

ID: 119778

File Name: flask_0_12_3.nasl

Version: 1.8

Type: local

Agent: unix

Family: CGI abuses

Published: 12/19/2018

Updated: 5/16/2022

Configuration: Enable thorough checks

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2018-1000656

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: x-cpe:/a:python-flask:-

Required KB Items: installed_sw/python-flask

Exploit Ease: No known exploits are available

Patch Publication Date: 4/26/2018

Vulnerability Publication Date: 4/26/2018

Reference Information

CVE: CVE-2018-1000656

Detections

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