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# Ardent Security Advisory

# Original Disclosure: https://www.ardent-security.com/advisory/ASA-2021-03/ASA-2021-03_CVE-2021-29395.txt

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# Product:          NorthStar Club Management 6.3

# Vendor:           Northstar Technologies Inc

# URL:                  https://www.globalnorthstar.com/

# ASA ID:             ASA-2021-03

# CVE ID:             CVE-2021-29395

#CWE ID:             CWE-35 – Path Traversal

# Subject:           Arbitrary File Download via Directory Traversal

# Severity:          High

# Author:            Alexandre LaRocque, CEO <[email protected]>

# Date:                2022-01-27

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Description:

In the NorthStar Club Management 6.3 web application does not perform proper user-controlled input validation and sanitization. The “/filemanager/download.jsp” file has a parameter named “path” that is vulnerable to directory traversal. This allows an unauthenticated user to freely download arbitrary files on the filesystem including JSP source code files. The severity of this finding is exacerbated by the fact that this vulnerability can be exploited without authentication. This vulnerability was identified by Ardent Security experts while performing penetration testing in Toronto, Canada.

Technical Description:

Due to the dominant market share of the product, no proof-of-concept code is provided.

Affected version(s):

Only NorthStar Club Management 6.3 was tested. Older versions could be vulnerable.

Workaround / Fix:

It is unknown if this vulnerability has been fixed by the vendor.

Vulnerability Severity:

CVSS v3.1 Metrics [2]:

– CVSS Base Score: 10 (High)

– CVSS Vector: AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Timeline:

2021-03-18: Vulnerability discovery

2021-03-27: Contacted vendor about the vulnerability

2021-03-27: Vendor was given a 90-days period

2021-06-27: Vendor was given an additional  90-days period

2021-09-27: Vendor was given an additional  90-days period

2022-01-27: Public disclosure

References:

[1] https://www.ardent-security.com/advisory/ASA-2021-03

[2] https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?vector=AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H&version=3.1