CVE & CISA-KEV Catalog

CVE-2019-14809

CRITICALEPSS 94th pctl
9.8
CVSS v3
NVD

Description

net/url in Go before 1.11.13 and 1.12.x before 1.12.8 mishandles malformed hosts in URLs, leading to an authorization bypass in some applications. This is related to a Host field with a suffix appearing in neither Hostname() nor Port(), and is related to a non-numeric port number. For example, an attacker can compose a crafted javascript:// URL that results in a hostname of google.com.

How to fix

Remediation Available
Go Programming LanguageWindows application
Affected:1.12.0 1.12.8Fixed in:1.12.8https://go.dev
Affected:1.11.13Fixed in:1.11.13https://go.dev

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

8.36%probability of exploitation in 30 days
94thpercentile

High risk: more likely to be exploited than 94% of all known CVEs.

References

Third-Party Advisory2
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HTML

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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.