CVE-2018-1000656
Flask Unvalidated JSON Denial of Service
Description
The Pallets Project flask version Before 0.12.3 contains a CWE-20: Improper Input Validation vulnerability in flask that can result in Large amount of memory usage possibly leading to denial of service. This attack appear to be exploitable via Attacker provides JSON data in incorrect encoding. This vulnerability appears to have been fixed in 0.12.3. NOTE: this may overlap CVE-2019-1010083.
INFO
Published Date :
Aug. 20, 2018, 7:31 p.m.
Last Modified :
Nov. 21, 2024, 3:40 a.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2018-1000656
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.0 | HIGH | [email protected] |
Solution
- Upgrade to Flask version 0.12.3 or later.
- Update the affected python-flask package.
Public PoC/Exploit Available at Github
CVE-2018-1000656 has a 38 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-1000656.
| URL | Resource |
|---|---|
| https://github.com/pallets/flask/pull/2691 | Issue Tracking Patch Third Party Advisory |
| https://github.com/pallets/flask/releases/tag/0.12.3 | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2019/08/msg00025.html | |
| https://security.netapp.com/advisory/ntap-20190221-0001/ | Patch Third Party Advisory |
| https://usn.ubuntu.com/4378-1/ | |
| https://github.com/pallets/flask/pull/2691 | Issue Tracking Patch Third Party Advisory |
| https://github.com/pallets/flask/releases/tag/0.12.3 | Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2019/08/msg00025.html | |
| https://security.netapp.com/advisory/ntap-20190221-0001/ | Patch Third Party Advisory |
| https://usn.ubuntu.com/4378-1/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-1000656 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2018-1000656
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Dockerfile Python
None
Makefile Dockerfile HTML JavaScript Python Shell HCL
None
Dockerfile Python HTML PowerShell Shell
Purposefully vulnerable Flask app for security tooling development
platform-engineering
Python HTML
None
Python
SAST Demo Projects - Intentionally vulnerable applications for demonstrating and evaluating Static Application Security Testing (SAST) tools
Python TypeScript Java
Related data and code
None
Python
None
Python HTML
None
Python
OpenClaw Skills Library 2,510 Production-Ready Skills for AI Agent Automation Give your OpenClaw agent the complete puzzle. Modular, observable, and safe automation workflows for Ubuntu Linux systems. Built for professionals who need reliability.
Test repo with failing build and vulnerable dependencies for testing build skip feature
Python
None
Makefile Python
Auditly is a next-generation Python dependency vulnerability scanner that helps developers identify security risks in installed packages and requirements.txt files, providing clear severity levels and fix recommendations.
Python
None
Makefile Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-1000656 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-1000656 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/pallets/flask/pull/2691 Added Reference https://github.com/pallets/flask/releases/tag/0.12.3 Added Reference https://lists.debian.org/debian-lts-announce/2019/08/msg00025.html Added Reference https://security.netapp.com/advisory/ntap-20190221-0001/ Added Reference https://usn.ubuntu.com/4378-1/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Jun. 09, 2020
Action Type Old Value New Value Added Reference https://usn.ubuntu.com/4378-1/ [No Types Assigned] -
CVE Modified by [email protected]
Aug. 25, 2019
Action Type Old Value New Value Changed Description The Pallets Project flask version Before 0.12.3 contains a CWE-20: Improper Input Validation vulnerability in flask that can result in Large amount of memory usage possibly leading to denial of service. This attack appear to be exploitable via Attacker provides JSON data in incorrect encoding. This vulnerability appears to have been fixed in 0.12.3. The Pallets Project flask version Before 0.12.3 contains a CWE-20: Improper Input Validation vulnerability in flask that can result in Large amount of memory usage possibly leading to denial of service. This attack appear to be exploitable via Attacker provides JSON data in incorrect encoding. This vulnerability appears to have been fixed in 0.12.3. NOTE: this may overlap CVE-2019-1010083. -
CVE Modified by [email protected]
Aug. 20, 2019
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2019/08/msg00025.html [No Types Assigned] -
Modified Analysis by [email protected]
Feb. 28, 2019
Action Type Old Value New Value Changed Reference Type https://security.netapp.com/advisory/ntap-20190221-0001/ No Types Assigned https://security.netapp.com/advisory/ntap-20190221-0001/ Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:netapp:active_iq:*:*:*:*:*:*:*:* *cpe:2.3:a:netapp:hyper_converged_infrastructure:*:*:*:*:*:*:*:* *cpe:2.3:a:netapp:ontap_select_deploy_utility:*:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Feb. 22, 2019
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20190221-0001/ [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 29, 2018
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://github.com/pallets/flask/pull/2691 No Types Assigned https://github.com/pallets/flask/pull/2691 Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://github.com/pallets/flask/releases/tag/0.12.3 No Types Assigned https://github.com/pallets/flask/releases/tag/0.12.3 Third Party Advisory Added CWE CWE-20 Added CPE Configuration OR *cpe:2.3:a:palletsprojects:flask:*:*:*:*:*:*:*:* versions up to (excluding) 0.12.3