Privilege escalation in Cisco Email Security and Content Security Management Appliance

1) Privilege escalation

EUVDB-ID: #VU10121

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-2018-0095

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 the administrative shell of the Cisco Email Security Appliance (ESA) and Content Security Management Appliance (SMA) due to an incorrect networking configuration at the administrative shell CLI. A local attacker can authenticate to the targeted device, issue a set of crafted, malicious commands at the administrative shell and gain root privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cisco Content Security Management Appliance: 9.7.0 006

: 9.7.1 066 - 10.0.0 085

External links

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

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 application 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.