CVE-2021-40113: Multiple vulnerabilities in the web-based management interface of the Cisco Catalyst Passive Optical Network (PON) Series Switches Optical Network Terminal…

PriorityP270critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EPSS

4.63%

90.6th percentile

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

7 ranges

Vendor	Product	Version range	Fixed in
cisco	catalyst_pon_series_switches_optical_network_terminal	—	—
cisco	catalyst_pon_switch_cgp-ont-1p_firmware	< 1.1.1.14	1.1.1.14
cisco	catalyst_pon_switch_cgp-ont-4p_firmware	< 1.1.3.17	1.1.3.17
cisco	catalyst_pon_switch_cgp-ont-4pv_firmware	< 1.1.3.17	1.1.3.17
cisco	catalyst_pon_switch_cgp-ont-4pvc_firmware	< 1.1.3.17	1.1.3.17
cisco	catalyst_pon_switch_cgp-ont-4tvcw_firmware	< 1.1.3.17	1.1.3.17
cisco	cisco_catalyst_pon_series	—	—

Detection & IOCsextracted from sources · hover to see the quote

→Unauthenticated remote attacker can log in using a default credential when Telnet protocol is enabled on the Cisco Catalyst PON Series Switches ONT web-based management interface ↗
→Unauthenticated remote attacker can perform command injection via the web-based management interface of Cisco Catalyst PON Series Switches ONT ↗
→Unauthenticated remote attacker can modify device configuration via the web-based management interface of Cisco Catalyst PON Series Switches ONT ↗

·CVE-2021-40113 is associated with CWE-798 (Use of Hard-coded Credentials), CWE-288 (Authentication Bypass), and CWE-284 (Improper Access Control); exploitation requires Telnet to be enabled on the device ↗
·There are no workarounds that address these vulnerabilities; Cisco has released software updates to remediate them ↗

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

vendor_cisco10.0CRITICAL

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