CVE-2017-16221 — HIGH (7.5)

Vulnerability Description

yzt is a simple file server. yzt is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the url.

CVSS Score

7.5

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Yzt Project	Yzt	1.4.0

Related Weaknesses (CWE)

CWE-22

References

https://github.com/JacksonGL/NPM-Vuln-PoC/blob/master/directory-traversal/yztExploitThird Party Advisory
https://nodesecurity.io/advisories/416Third Party Advisory
https://github.com/JacksonGL/NPM-Vuln-PoC/blob/master/directory-traversal/yztExploitThird Party Advisory
https://nodesecurity.io/advisories/416Third Party Advisory

FAQ

What is CVE-2017-16221?

CVE-2017-16221 is a vulnerability with a CVSS score of 7.5 (HIGH). yzt is a simple file server. yzt is vulnerable to a directory traversal issue, giving an attacker access to the filesystem by placing "../" in the url.

How severe is CVE-2017-16221?

CVE-2017-16221 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-16221?

Check the references section above for vendor advisories and patch information. Affected products include: Yzt Project Yzt.