CVE-2018-11407

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 42%
VendorProductVersion
sensiolabssymfony
2.8.0 ≤
𝑥
< 2.8.37
sensiolabssymfony
3.3.0 ≤
𝑥
< 3.3.17
sensiolabssymfony
3.4.0 ≤
𝑥
< 3.4.7
sensiolabssymfony
4.0.0 ≤
𝑥
< 4.0.7
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
symfony
bullseye
4.4.19+dfsg-2+deb11u6
fixed
stretch
not-affected
jessie
not-affected
bookworm
5.4.23+dfsg-1+deb12u2
fixed
sid
6.4.13+dfsg-1
fixed
trixie
6.4.13+dfsg-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
symfony
lunar
not-affected
kinetic
not-affected
jammy
not-affected
impish
not-affected
hirsute
not-affected
groovy
not-affected
focal
not-affected
eoan
not-affected
disco
not-affected
cosmic
not-affected
bionic
Fixed 3.4.6+dfsg-1ubuntu0.1+esm1
released
artful
ignored
xenial
not-affected
trusty
dne
Common Weakness Enumeration
References
https://symfony.com/blog/cve-2018-11407-unauthorized-access-on-a-misconfigured-ldap-server-when-using-an-empty-password
https://symfony.com/blog/cve-2018-11407-unauthorized-access-on-a-misconfigured-ldap-server-when-using-an-empty-password