CVE-2018-11407
Symfony Authentication Bypass
9.8
CRITICAL
CVSS 3.1
EPSS 0.14%
Description
An issue was discovered in the Ldap component in Symfony 2.8.x before 2.8.37, 3.3.x before 3.3.17, 3.4.x before 3.4.7, and 4.0.x before 4.0.7. It allows remote attackers to bypass authentication by logging in with a "null" password and valid username, which triggers an unauthenticated bind. NOTE: this issue exists because of an incomplete fix for CVE-2016-2403.
How to fix CVE-2018-11407
To remediate CVE-2018-11407, upgrade the affected package to a fixed version below.
- —upgrade to 3.4.12+dfsg-1 or later
- —upgrade to 2.8.37 or later
- —upgrade to 2.8.37 or later
- —upgrade to 2.8.37 or later
Is CVE-2018-11407 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 3.4.12+dfsg-1
- >= 2.8.0, < 2.8.37
- >= 2.8.0, < 2.8.37
- >= 2.8.0, < 2.8.37
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |