Security restrictions bypass in Cisco Spark

1) Security restrictions bypass

EUVDB-ID: #VU10400

Risk: Low

CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0119

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

The vulnerability allows a remote authenticated attacker to bypass security restrictions on the target system.

The vulnerability exists due to the improper display of user-account tokens generated in the system. A remote attacker can log in to the device with a token in use by another account and cause a partial impact to the device's confidentiality, integrity, and availability.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cisco Spark: All versions

CPE2.3

• cpe:2.3:a:cisco_systems:cisco_spark:*:*:*:*:*:*:*:*

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180207-spark

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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