Path traversal in Cisco Nexus Data Broker Software

1) Path traversal

EUVDB-ID: #VU47438

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3597

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

Exploit availability: No

Description

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

The vulnerability exists due to input validation error when processing directory traversal sequences in the configuration restore feature. A remote attacker can trick an administrator to restore a crafted configuration backup file and overwrite arbitrary files.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cisco Nexus Data Broker: 3.9.0

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ndb-path-traversal-wVDyXZPy

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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