Vulnerability Report

CVE-2021-41268

Title: Remember Me Cookie Invalidation in Symfony SecurityBundle

Session Fixation

Proof Of Concept

No public PoC currently indexed for CVE-2021-41268.

CWE Category CWE-384
Published Date Nov 24, 2021
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 6.5 CVSS v3.1
Exploit Probability (EPSS)
1.28%

Vulnerability Summary

CVE-2021-41268: Symfony/SecurityBundle is the security system for Symfony, a PHP framework for web and console applications and a set of reusable PHP components. Since the rework of the Remember me cookie in version 5.3.0, the cookie is not invalidated when the user changes their password. Attackers can therefore maintain their access to the account even if the password is changed as long as they have had the chance to login once and get a valid remember me cookie. Starting with version 5.3.12, Symfony makes the password part of the signature by default. In that way, when the password changes, then the cookie is not valid anymore.

Impacted Vendors

A
auth0 1
S
sensiolabs 1

Reference Links

https://github.com/symfony/symfony/commit/36a808b857cd3240244f4b224452fb1e70dc6dfc https://github.com/symfony/symfony/pull/44243 https://github.com/symfony/symfony/releases/tag/v5.3.12 https://github.com/symfony/symfony/security/advisories/GHSA-qw36-p97w-vcqr https://github.com/symfony/symfony/commit/36a808b857cd3240244f4b224452fb1e70dc6dfc https://github.com/symfony/symfony/pull/44243 https://github.com/symfony/symfony/releases/tag/v5.3.12 https://github.com/symfony/symfony/security/advisories/GHSA-qw36-p97w-vcqr
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
6.5
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v3.1
Source Entity [email protected]
Severity HIGH
8.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
6.5
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:S/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-41268 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Stack

No specific products linked.