HTTP Request Smuggling in Cisco Webex Video Mesh

1) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU24230

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2019-20372

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.

The vulnerability exists with certain error_page configurations. A remote attacker can read unauthorized web pages in environments where NGINX is being fronted by a load balancer.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Webex Video Mesh: 2018.10.04.1692m - 2020.01.12.2091m

CPE2.3

• cpe:2.3:a:cisco_systems:cisco_webex_video_mesh:2018.10.04.1692m:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_webex_video_mesh:2018.10.04.1694m:*:*:*:*:*:*:*
• cpe:2.3:a:cisco_systems:cisco_webex_video_mesh:2018.10.11.1702m:*:*:*:*:*:*:*

External links

https://help.webex.com/en-us/jgobq2/Cisco-Webex-Video-Mesh-Release-Notes

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.