Improper Authentication in Cisco Vision Dynamic Signage Director

1) Improper Authentication

EUVDB-ID: #VU19248

Risk: High

CVSSv4.0: 8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2019-1917

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to insufficient validation of HTTP requests in the REST API interface. A remote attacker can send a crafted HTTP request to an affected system, bypass authentication process, gain unauthorized access to the application and  execute arbitrary actions through the REST API with administrative privileges on the affected system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Vision Dynamic Signage Director: 2.0 - 6.1

CPE2.3

• cpe:2.3:a:cisco_systems:cisco_vision_dynamic_signage_director:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_vision_dynamic_signage_director:2.4:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_vision_dynamic_signage_director:3.0:*:*:*:*:*:*:*

External links

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-cvdsd-wmauth

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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