Privilege escalation in Cisco IOS XE Software

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU73990

Risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-20029

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local administrator to escalate privileges on the system.

The vulnerability exists due to insufficient memory protection in the Meraki onboarding feature, which leads to security restrictions bypass and privilege escalation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco IOS XE: 17.8.1

Catalyst 9200 Series Switches: All versions

Catalyst 9300 Series Switches: All versions

CPE2.3

• cpe:2.3:o:cisco_systems:cisco_ios_xe:17.8.1:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:catalyst_9200_series_switches:*:*:*:*:*:*:*:*
• cpe:2.3:h:cisco_systems:catalyst_9300_series_switches:*:*:*:*:*:*:*:*

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-priv-esc-sABD8hcU

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.