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Vulnerability Details : CVE-2021-34715

A vulnerability in the image verification function of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to execute code with internal user privileges on the underlying operating system. The vulnerability is due to insufficient validation of the content of upgrade packages. An attacker could exploit this vulnerability by uploading a malicious archive to the Upgrade page of the administrative web interface. A successful exploit could allow the attacker to execute code with user-level privileges (the _nobody account) on the underlying operating system.
Publish Date : 2021-08-18 Last Update Date : 2021-08-25
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- CVSS Scores & Vulnerability Types

CVSS Score
9.0
Confidentiality Impact Complete (There is total information disclosure, resulting in all system files being revealed.)
Integrity Impact Complete (There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication ???
Gained Access None
Vulnerability Type(s) Execute Code
CWE ID 347

- Products Affected By CVE-2021-34715

# Product Type Vendor Product Version Update Edition Language
1 Application Cisco Expressway * * * * Version Details Vulnerabilities
2 Application Cisco Telepresence Video Communication Server * * * * Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Cisco Expressway 1
Cisco Telepresence Video Communication Server 1

- References For CVE-2021-34715

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewver-c6WZPXRx
CISCO 20210818 Cisco Expressway Series and TelePresence Video Communication Server Image Verification Vulnerability

- Metasploit Modules Related To CVE-2021-34715

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)
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