Multiple vulnerabilities in Cisco StarOS

Published: 2020-10-08

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2020-3602 CVE-2020-3601
CWE-ID	CWE-264
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	Cisco ASR 5000 Series Hardware solutions / Firmware Cisco StarOS Operating systems & Components / Operating system
Vendor	Cisco Systems, Inc

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU47435

Risk: Low

CVSSv3.1: 5.8 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3602

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

Exploit availability: No

Description

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

The vulnerability exists due to insufficient input validation of CLI commands. A local administrator can send a specially crafted commands to the CLI and execute arbitrary code with root privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco ASR 5000 Series: All versions

Cisco StarOS: 21.19.n3

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-staros-privilege-esc-pyb7YTd

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.

2) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU47436