Vulnerability · Published Nov 4, 2021 · Assigned by cisco
CVE-2021-40113Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities
Critical 10.0
In plain English
A critical-severity improper access control in Cisco Catalyst PON Series from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 4.6% (higher than 92% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code.
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Catalyst PON Series | n/a |
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
References
- 20211103 Cisco Catalyst PON Series Switches Optical Network Terminal Vulnerabilities vendor-advisory, x_refsource_CISCO