Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXE0OGctcDVjeC1jN2M3

Directory Traversal in yzt

Affected versions of yzt resolve relative file paths, resulting in a directory traversal vulnerability. A malicious actor can use this vulnerability to access files outside of the intended directory root, which may result in the disclosure of private files on the vulnerable system.

Example request:

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

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.

Permalink: https://github.com/advisories/GHSA-q48g-p5cx-c7c7
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXE0OGctcDVjeC1jN2M3
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 4 years ago
Updated: over 1 year ago

CVSS Score: 7.5
CVSS vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS Percentage: 0.00651
EPSS Percentile: 0.79511

Identifiers: GHSA-q48g-p5cx-c7c7, CVE-2017-16221
References:

• https://github.com/JacksonGL/NPM-Vuln-PoC/blob/master/directory-traversal/yzt
• https://www.npmjs.com/advisories/416
• https://nvd.nist.gov/vuln/detail/CVE-2017-16221
• https://github.com/advisories/GHSA-q48g-p5cx-c7c7

Blast Radius: 0.0

Affected Packages