VDB-155236 · CVE-2020-11067 · GCVE-0-2020-11067

TYPO3 CMS up to 9.5.16/10.4.1 $BE_USER->uc deserialization

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.
6.6	$0-$5k	0.00

Summaryinfo

A vulnerability was found in TYPO3 CMS up to 9.5.16/10.4.1 and classified as critical. This issue affects some unknown processing. Executing a manipulation of the argument $BE_USER->uc can lead to deserialization. This vulnerability is handled as CVE-2020-11067. The attack can be executed remotely. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in TYPO3 CMS up to 9.5.16/10.4.1 (Content Management System) and classified as critical. This vulnerability affects an unknown code. The manipulation of the argument $BE_USER->uc with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In TYPO3 CMS 9.0.0 through 9.5.16 and 10.0.0 through 10.4.1, it has been discovered that backend user settings (in $BE_USER->uc) are vulnerable to insecure deserialization. In combination with vulnerabilities of third party components, this can lead to remote code execution. A valid backend user account is needed to exploit this vulnerability. This has been fixed in 9.5.17 and 10.4.2.

The weakness was released 05/14/2020 (GitHub Repository). The advisory is shared for download at github.com. This vulnerability was named CVE-2020-11067 since 03/30/2020. The attack can be initiated remotely. A single authentication is needed for exploitation. There are known technical details, but no exploit is available.

Upgrading to version 9.5.17 or 10.4.2 eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-155235 and VDB-155237. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Content Management System

Vendor

TYPO3

Name

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 5.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

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: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
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: CMS 9.5.17/10.4.2

Timelineinfo

03/30/2020 🔍
05/14/2020 +45 days 🔍
05/14/2020 +0 days 🔍
10/18/2020 +157 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-11067 (🔍)
GCVE (CVE): GCVE-0-2020-11067
GCVE (VulDB): GCVE-100-155236
See also: 🔍

Entryinfo

Created: 05/14/2020 16:00
Updated: 10/18/2020 07:57
Changes: 05/14/2020 16:00 (40), 05/14/2020 16:05 (12), 10/18/2020 07:51 (1), 10/18/2020 07:57 (1)
Complete: 🔍
Cache ID: 216::103