Vulnerability identifier: #VU56028
Vulnerability risk: Low
CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2021-34715
CWE-ID:
CWE-347
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
Cisco Expressway
Server applications /
Conferencing, Collaboration and VoIP solutions
Cisco TelePresence Video Communication Server
Server applications /
Other server solutions
Vendor: Cisco Systems, Inc
Description
The vulnerability allows a remote user to compromise the target system.
The vulnerability exists due to insufficient validation of the content of upgrade packages. A remote administrator can upload a malicious archive to the Upgrade page and execute arbitrary code on the target system.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Cisco Expressway: X8.8
Cisco TelePresence Video Communication Server: X8.8
External links
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ewver-c6WZPXRx
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.