Is CVE-2018-5387 in the CISA KEV catalog?

No. CVE-2018-5387 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2018-5387?

CVE-2018-5387 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2018-5387?

CVE-2018-5387 has an EPSS score of 1.66% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2018-5387?

Upgrade samlbase to 1.4.2 or later.

CVE & CISA-KEV Catalog

CVE-2018-5387

HIGHEPSS 74th pctl

7.5

CVSS v3

NVD

Description

Wizkunde SAMLBase may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.

CWE-287Improper Authentication CWE-347

How to fix

Remediation Available

samlbaseNVD

Affected:< 1.4.2Fixed in:1.4.2CVE-2018-5387derived from NVD

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

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

1.66%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Patch2

Exploit1

duo.com

Third-Party Advisory1

kb.cert.org

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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.