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Information Exposure on Case Insensitive File Systems in serve

Moderate severity GitHub Reviewed Published Jul 18, 2018 to the GitHub Advisory Database • Updated Jan 9, 2023

Package

npm serve (npm)

Affected versions

< 7.0.0

Patched versions

7.0.0

Description

Versions of serve before 7.0.0 are vulnerable to information exposure, bypassing the ignore security control, but only on case insensitive file systems.

Recommendation

Update to version 7.0.0 or later.

References

Published to the GitHub Advisory Database Jul 18, 2018
Reviewed Jun 16, 2020
Last updated Jan 9, 2023

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS score

0.127%
(48th percentile)

Weaknesses

CVE ID

CVE-2018-3809

GHSA ID

GHSA-686g-3xr3-x4x6

Source code

No known source code
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