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CVE search · CVE-2018-19148

CVE-2018-19148

low 3.7

Caddy through 0.11.0 sends incorrect certificates for certain invalid requests, making it easier for attackers to enumerate hostnames. Specifically, when unable to match a Host header with a vhost in its configuration, it serves the X.509 certificate for a randomly selected vhost in its configuration. Repeated requests (with a nonexistent hostname in the Host header) permit full enumeration of all certificates on the server. This generally permits an attacker to easily and accurately discover the existence of and relationships among hostnames that weren't meant to be public, though this information could likely have been discovered via other methods with additional effort.

Open in the NVD CVE.org JSON

Details

Status
Modified
Published
Last changed
Source
cve@mitre.org
Weakness
CWE-200

Severity

VersionScoreVectorSource
CVSS 3.0 low 3.7 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N nvd@nist.govPrimary
CVSS 2.0 medium 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N nvd@nist.govPrimary

Affected products

Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.

References