Vulnerability identifier: #VU51768

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1392

CWE-ID: CWE-522

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Cisco IOS
Operating systems & Components / Operating system
Cisco IOS XE
Operating systems & Components / Operating system
Cisco Embedded Services 3300 Series Switches
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a local user to compromise the target system.

The vulnerability exists due to incorrect permissions are associated with the show cip security CLI command. A local user can use a specially crafted command to retrieve the password for CIP and reconfigure the device.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco IOS: 17.1.1

Cisco IOS XE: 17.1.1

Cisco Embedded Services 3300 Series Switches: All versions

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-XE-SAP-OPLbze68

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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.