CVE-2021-34795
Critical
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.
SeverityCritical
CVSS10.0
Exploit probability—
Product
Cisco Catalyst Pon Switch Cgp-ont-1p Firmware
PublishedNov 4, 2021
First seenNov 4, 2021
Weakness typeCWE-284Improper access control
How to fix
Update
- cisco catalyst_pon_switch_cgp-ont-1p_firmware1.1.1.14 or later
- cisco catalyst_pon_switch_cgp-ont-4p_firmware1.1.3.17 or later
- cisco catalyst_pon_switch_cgp-ont-4pvc_firmware1.1.3.17 or later
- cisco catalyst_pon_switch_cgp-ont-4tvcw_firmware1.1.3.17 or later
- cisco catalyst_pon_switch_cgp-ont-4pv_firmware1.1.3.17 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco catalyst_pon_switch_cgp-ont-1p_firmware | v < 1.1.1.14 | 1.1.1.14 |
| cisco catalyst_pon_switch_cgp-ont-4p_firmware | v < 1.1.3.17 | 1.1.3.17 |
| cisco catalyst_pon_switch_cgp-ont-4pvc_firmware | v < 1.1.3.17 | 1.1.3.17 |
| cisco catalyst_pon_switch_cgp-ont-4tvcw_firmware | v < 1.1.3.17 | 1.1.3.17 |
| cisco catalyst_pon_switch_cgp-ont-4pv_firmware | v < 1.1.3.17 | 1.1.3.17 |
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