Logic error in Cisco Nexus 3000 and 9000 Series Switches

1) Business Logic Errors

EUVDB-ID: #VU79941

Risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-20115

CWE-ID: CWE-840 - Business Logic Errors (3.0)

Exploit availability: No

Description

The vulnerability allows a remote attacker to download or overwrite files.

The vulnerability exists due to a logic error in the SFTP server implementation. A remote user can read or overwrite files from the underlying operating system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco NX-OS: 9.2(2t) - 10.3(2)

Cisco Nexus 3000 Series Switches: All versions

Cisco Nexus 9000 Series Switches NX-OS Mode: All versions

External links

http://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-sftp-xVAp5Hfd

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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