Vulnerability Details : CVE-2021-32693
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. A vulnerability related to firewall authentication is in Symfony starting with version 5.3.0 and prior to 5.3.2. When an application defines multiple firewalls, the token authenticated by one of the firewalls was available for all other firewalls. This could be abused when the application defines different providers for each part of the application, in such a situation, a user authenticated on a part of the application could be considered authenticated on the rest of the application. Starting in version 5.3.2, a patch ensures that the authenticated token is only available for the firewall that generates it.
Vulnerability category: BypassGain privilege
Products affected by CVE-2021-32693
- cpe:2.3:a:sensiolabs:symfony:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-32693
0.55%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 67 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-32693
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST | |
|
6.8
|
MEDIUM | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N |
1.6
|
5.2
|
GitHub, Inc. |
CWE ids for CVE-2021-32693
-
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.Assigned by: security-advisories@github.com (Primary)
References for CVE-2021-32693
-
https://github.com/symfony/security-http/commit/6bf4c31219773a558b019ee12e54572174ff8129
security #cve-2021-32693 [SecurityHttp] Fix "Authentication granted w… · symfony/security-http@6bf4c31 · GitHubPatch;Third Party Advisory
-
https://github.com/symfony/symfony/commit/3084764ad82f29dbb025df19978b9cbc3ab34728
Only trigger for the correct firewall in ContextListener::onKernelRes… · symfony/symfony@3084764 · GitHubPatch;Third Party Advisory
-
https://symfony.com/blog/cve-2021-32693-authentication-granted-to-all-firewalls-instead-of-just-one
CVE-2021-32693: Authentication granted to all firewalls instead of just one (Symfony Blog)Patch;Vendor Advisory
-
https://github.com/symfony/symfony/security/advisories/GHSA-rfcf-m67m-jcrq
Authentication granted to all firewalls instead of just one · Advisory · symfony/symfony · GitHubPatch;Third Party Advisory
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