Privilege escalation in Cisco Industrial Ethernet 4010 Series Switches

1) Privilege escalation

EUVDB-ID: #VU10115

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0088

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

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The weakness exists in one of the diagnostic test CLI commands on Cisco Industrial Ethernet 4010 Series Switches due to a diagnostic test CLI command that allows the attacker to write to the device memory. A local attacker can authenticate to the targeted device, issue a specific diagnostic test command at the CLI, overwrite system memory locations and cause DoS condition or execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update to version 15.2(6.4.19i)E1.

Vulnerable software versions

Cisco Industrial Ethernet 4010 Series Switches: 15.2.5

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180117-iess

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.

How the attacker can exploit this vulnerability?

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

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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