Command Injection Vulnerability in Cisco Expressway Series and TelePresence VCS
CVE-2023-20209

6.5MEDIUM

Key Information:

Vendor
Cisco
Status
Cisco Telepresence Video Communication Server (vcs) Expressway
Vendor
CVE Published:
16 August 2023

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A command injection vulnerability exists in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS). This issue arises from the insufficient validation of user-supplied input. An authenticated remote attacker with read-write privileges could exploit this vulnerability by sending a specially crafted request, potentially allowing them to execute arbitrary commands on the affected device. A successful attack may enable the attacker to gain remote shell access with elevated privileges.

Affected Version(s)

Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.1

Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.3

Cisco TelePresence Video Communication Server (VCS) Expressway X8.5

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2023-20209
Created by peter5he1by

References

https://sec.cloudapps.cisco.com/security/center/content/C...

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.