Is CVE-2018-11407 in the CISA KEV catalog?

No. CVE-2018-11407 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-11407?

CVE-2018-11407 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2018-11407?

CVE-2018-11407 has an EPSS score of 2.34% (82th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-11407?

Upgrade symfony on debian 11 to 3.4.12+dfsg-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2018-11407

CRITICALEPSS 82th pctl

9.8

CVSS v3

NVD

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.

CWE-287Improper Authentication

How to fix

Remediation Available

symfonyDebian

Fixed in:3.4.12+dfsg-1CVE-2018-11407

php-symfonyUbuntu

Fixed in:3.4.6+dfsg-1ubuntu0.1+esm1USN-4836-1

php-symfony-http-foundationUbuntu

Fixed in:3.4.6+dfsg-1ubuntu0.1+esm1USN-4836-1

symfonyUbuntu

Fixed in:3.4.6+dfsg-1ubuntu0.1+esm1USN-4836-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

2.34%probability of exploitation in 30 days

82ndpercentile

Elevated risk: more likely to be exploited than 82% of all known CVEs.

References

Vendor Advisory1

symfony.com

Related Vulnerabilities

Other CWE-287 (Improper Authentication) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-35082	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2023-35078	Critical	9.8	100%	KEV + Ransom	Fix
CVE-2017-7921	Critical	9.8	100%	KEV	-
CVE-2024-7593	Critical	9.8	100%	KEV	-
CVE-2023-46805	High	8.2	100%	KEV + Ransom	-
CVE-2022-40684	Critical	9.8	100%	KEV + Ransom	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.