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Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities

Multiple vulnerabilities in the web-based management interface of the Cisco Catalyst Passive Optical Network (PON) Series Switches Optical Network Terminal (ONT) could allow an unauthenticated, remote attacker to perform the following actions:

• Log in with a default credential if the Telnet protocol is enabled


• Perform command injection


• Modify the configuration

For more information about these vulnerabilities, see the Details section of this advisory.

Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-catpon-multivulns-CE3DSYGr

     
         
Security Impact Rating:  Critical
   
   
       
CVE: CVE-2021-34795,CVE-2021-40112,CVE-2021-40113
Source: Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities (https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-catpon-multivulns-CE3DSYGr?vs_f=Cisco%20Security%20Advisory&vs_cat=Security%20Intelligence&vs_type=RSS&vs_p=Cisco%20Catalyst%20PON%20Series%20Switches%20Optical%20Network%20Terminal%20Vulnerabilities&vs_k=1)