Cookie persistence after password changes in symfony/security-bundle
The advisory, in context
Description
Since the rework of the Remember me cookie in Symfony 5.3, the cookie is not invalidated anymore when the user changes its 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.
Resolution
Symfony now makes the password part of the signature by default. In that way, when the password changes then the cookie is not valid anymore.
The patch for this issue is available here for branch 5.3.
Credits
We would like to thank Thibaut Decherit for reporting the issue and Wouter J for fixing the issue.
Affected packages
Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.
From 5.3.0 before 5.3.12
Fixed in 5.3.12
7 explicitly affected versions
v5.3.0, v5.3.11, v5.3.2, v5.3.3, v5.3.4, v5.3.7, v5.3.8
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "5.3.0"
},
{
"fixed": "5.3.12"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v5.3.0",
"v5.3.11",
"v5.3.2",
"v5.3.3",
"v5.3.4",
"v5.3.7",
"v5.3.8"
]
}From 5.3.0 before 5.3.12
Fixed in 5.3.12
12 explicitly affected versions
v5.3.0, v5.3.1, v5.3.10, v5.3.11, v5.3.2, v5.3.3, v5.3.4, v5.3.5, v5.3.6, v5.3.7, v5.3.8, v5.3.9
View affected-version evidence
{
"ranges": [
{
"events": [
{
"introduced": "5.3.0"
},
{
"fixed": "5.3.12"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"v5.3.0",
"v5.3.1",
"v5.3.10",
"v5.3.11",
"v5.3.2",
"v5.3.3",
"v5.3.4",
"v5.3.5",
"v5.3.6",
"v5.3.7",
"v5.3.8",
"v5.3.9"
]
}References
- https://github.com/symfony/symfony/security/advisories/GHSA-qw36-p97w-vcqr
- https://nvd.nist.gov/vuln/detail/CVE-2021-41268
- https://github.com/symfony/symfony/pull/44243
- https://github.com/symfony/symfony/commit/36a808b857cd3240244f4b224452fb1e70dc6dfc
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-bundle/CVE-2021-41268.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2021-41268.yaml
- https://github.com/symfony/symfony
- https://github.com/symfony/symfony/releases/tag/v5.3.12
- https://symfony.com/cve-2021-41268