VDB-171572 · CVE-2021-21357 · GCVE-0-2021-21357

TYPO3 up to 8.7.39/9.5.24/10.4.13/11.1.0 Form Designer Backend unrestricted upload

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in TYPO3 up to 8.7.39/9.5.24/10.4.13/11.1.0. Impacted is an unknown function of the component Form Designer Backend Module. Such manipulation leads to unrestricted upload. This vulnerability is uniquely identified as CVE-2021-21357. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in TYPO3 up to 8.7.39/9.5.24/10.4.13/11.1.0 (Content Management System) and classified as critical. Affected by this issue is some unknown functionality of the component Form Designer Backend Module. The manipulation with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 03/23/2021. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-21357. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1608.002.

Upgrading to version 8.7.40, 9.5.25, 10.4.14 or 11.1.1 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Content Management System

Name

TYPO3

Version

License

open-source

Website

Product: https://typo3.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: TYPO3 8.7.40/9.5.25/10.4.14/11.1.1

Timelineinfo

12/22/2020 🔍
03/23/2021 +91 days 🔍
03/23/2021 +0 days 🔍
04/03/2021 +11 days 🔍

Sourcesinfo

Product: typo3.org

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-21357 (🔍)
GCVE (CVE): GCVE-0-2021-21357
GCVE (VulDB): GCVE-100-171572

Entryinfo

Created: 03/23/2021 09:22
Updated: 04/03/2021 21:14
Changes: 03/23/2021 09:22 (39), 04/03/2021 21:10 (5), 04/03/2021 21:14 (8)
Complete: 🔍
Cache ID: 216::103