CVE-2021-21896 — MEDIUM (6.5)

Vulnerability Description

A directory traversal vulnerability exists in the Web Manager FsBrowseClean functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to arbitrary file deletion. An attacker can make an authenticated HTTP request to trigger this vulnerability.

CVSS Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

NONE

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Lantronix	Premierwave 2050 Firmware	8.9.0.0
Lantronix	Premierwave 2050	-

Related Weaknesses (CWE)

CWE-22

References

https://talosintelligence.com/vulnerability_reports/TALOS-2021-1338ExploitThird Party Advisory
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1338ExploitThird Party Advisory

FAQ

What is CVE-2021-21896?

CVE-2021-21896 is a vulnerability with a CVSS score of 6.5 (MEDIUM). A directory traversal vulnerability exists in the Web Manager FsBrowseClean functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to arbitrary file...

How severe is CVE-2021-21896?

CVE-2021-21896 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-21896?

Check the references section above for vendor advisories and patch information. Affected products include: Lantronix Premierwave 2050 Firmware, Lantronix Premierwave 2050.