8.8
HIGH
CVE-2021-41113
TYPO3 Cross-Site Request Forgery Vulnerability
Description

TYPO3 is an open source PHP based web content management system released under the GNU GPL. It has been discovered that the new TYPO3 v11 feature that allows users to create and share deep links in the backend user interface is vulnerable to cross-site-request-forgery. The impact is the same as described in TYPO3-CORE-SA-2020-006 (CVE-2020-11069). However, it is not limited to the same site context and does not require the attacker to be authenticated. In a worst case scenario, the attacker could create a new admin user account to compromise the system. To successfully carry out an attack, an attacker must trick his victim to access a compromised system. The victim must have an active session in the TYPO3 backend at that time. The following Same-Site cookie settings in $GLOBALS[TYPO3_CONF_VARS][BE][cookieSameSite] are required for an attack to be successful: SameSite=strict: malicious evil.example.org invoking TYPO3 application at good.example.org and SameSite=lax or none: malicious evil.com invoking TYPO3 application at example.org. Update your instance to TYPO3 version 11.5.0 which addresses the problem described.

INFO

Published Date :

Oct. 5, 2021, 6:15 p.m.

Last Modified :

Oct. 9, 2021, 2:51 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-41113 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.

ID Vendor Product Action
1 Typo3 typo3
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-2021-41113.

URL Resource
https://github.com/TYPO3/typo3/commit/fa51999203c5e5d913ecae5ea843ccb2b95fa33f Patch Third Party Advisory
https://github.com/TYPO3/typo3/security/advisories/GHSA-657m-v5vm-f6rw Third Party Advisory
https://typo3.org/security/advisory/typo3-core-sa-2020-006 Not Applicable Vendor Advisory

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).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-41113 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-41113 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 [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Oct. 09, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P)
    Changed Reference Type https://github.com/TYPO3/typo3/commit/fa51999203c5e5d913ecae5ea843ccb2b95fa33f No Types Assigned https://github.com/TYPO3/typo3/commit/fa51999203c5e5d913ecae5ea843ccb2b95fa33f Patch, Third Party Advisory
    Changed Reference Type https://github.com/TYPO3/typo3/security/advisories/GHSA-657m-v5vm-f6rw No Types Assigned https://github.com/TYPO3/typo3/security/advisories/GHSA-657m-v5vm-f6rw Third Party Advisory
    Changed Reference Type https://typo3.org/security/advisory/typo3-core-sa-2020-006 No Types Assigned https://typo3.org/security/advisory/typo3-core-sa-2020-006 Not Applicable, Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:* versions from (including) 11.2.0 up to (excluding) 11.5.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-41113 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-2021-41113 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.28 }} 0.06%

score

0.69023

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability