Path traversal in Cassia Networks Access Controller



Published: 2021-05-03
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-22685
CWE-ID CWE-22
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Access Controller
Server applications / Other server solutions

Vendor

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Path traversal

EUVDB-ID: #VU52795

Risk: Low

CVSSv3.1: 5.4 [CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-22685

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: No

Description

The vulnerability allows a local attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A local attacker can send a specially crafted HTTP request and read arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Access Controller: before 2.0.1

External links

http://ics-cert.us-cert.gov/advisories/icsa-21-119-02


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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