VDB-187248 · CVE-2021-41268 · GHSA-qw36-p97w-vcqr

Symfony up to 5.3.11 SecurityBundle session fixiation

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.
6.2	$0-$5k	0.00

Summaryinfo

A vulnerability described as critical has been identified in Symfony up to 5.3.11. The affected element is an unknown function of the component SecurityBundle. The manipulation results in session fixiation. This vulnerability was named CVE-2021-41268. The attack may be performed from remote. There is no available exploit. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Symfony up to 5.3.11. Affected is an unknown code block of the component SecurityBundle. The manipulation with an unknown input leads to a session fixiation vulnerability. CWE is classifying the issue as CWE-384. Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was presented 11/25/2021 as GHSA-qw36-p97w-vcqr. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2021-41268 since 09/15/2021. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available.

Upgrading to version 5.3.12 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 36a808b857cd3240244f4b224452fb1e70dc6dfc is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

Symfony

Version

License

open-source

Website

Product: https://github.com/symfony/symfony/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

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

CNA Base Score: 6.5
CNA Vector (GitHub, Inc.): 🔍

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: Session fixiation
CWE: CWE-384
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: Symfony 5.3.12
Patch: 36a808b857cd3240244f4b224452fb1e70dc6dfc

Timelineinfo

09/15/2021 🔍
11/25/2021 +71 days 🔍
11/25/2021 +0 days 🔍
11/27/2021 +2 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-qw36-p97w-vcqr
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-41268 (🔍)
GCVE (CVE): GCVE-0-2021-41268
GCVE (VulDB): GCVE-100-187248

Entryinfo

Created: 11/25/2021 07:16
Updated: 11/27/2021 20:22
Changes: 11/25/2021 07:16 (52), 11/27/2021 20:22 (2)
Complete: 🔍
Cache ID: 216::103