Cisco Expressway Series and TelePresence Video Communication Server Image Verification Vulnerability
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. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2021-34715US | high7.2 | — | ||
A vulnerability in the image verification function of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- Cisco Expressway Series and TelePresence Video Communication Server Image Verification Vulnerabilityself
- Cisco Security Vulnerability Policyexternal
- considering software upgradesexternal
- Cisco Expressway Administrator Guideexternal
- Configuring Certificate-Based Authenticationexternal
- Configuring the Dedicated Management Interface (DMI)external
- Intrusion Protectionexternal
- Cisco Security Advisories pageexternal
Behebungen (1)
- BehobenCisco TelePresence Video Communication Server (VCS) Expressway
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
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