Multiple vulnerabilities in Cisco Catalyst PON Series Switches
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2021-34795 CVE-2021-40112 CVE-2021-40113 |
| CWE-ID | CWE-798 CWE-288 CWE-77 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Catalyst PON Switch CGP-ONT-1P Hardware solutions / Routers & switches, VoIP, GSM, etc Catalyst PON Switch CGP-ONT-4P Hardware solutions / Routers & switches, VoIP, GSM, etc Catalyst PON Switch CGP-ONT-4PV Hardware solutions / Routers & switches, VoIP, GSM, etc Catalyst PON Switch CGP-ONT-4PVC Hardware solutions / Routers & switches, VoIP, GSM, etc Catalyst PON Switch CGP-ONT-4TVCW Hardware solutions / Routers & switches, VoIP, GSM, etc |
| Vendor |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Use of hard-coded credentials
EUVDB-ID: #VU57959
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-34795
CWE-ID:
CWE-798 - Use of Hard-coded Credentials
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain full access to vulnerable system.
The vulnerability exists due to an unintentional debugging credential that exists on the device. A remote unauthenticated attacker can access the affected system using the hard-coded credentials.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCatalyst PON Switch CGP-ONT-1P : before 1.1.1.14
Catalyst PON Switch CGP-ONT-4P : before 1.1.3.17
Catalyst PON Switch CGP-ONT-4PV : before 1.1.3.17
Catalyst PON Switch CGP-ONT-4PVC : before 1.1.3.17
Catalyst PON Switch CGP-ONT-4TVCW : before 1.1.3.17
External linksQ & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Authentication bypass using an alternate path or channel
EUVDB-ID: #VU57960
Risk: High
CVSSv3.1: 7.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-40112
CWE-ID:
CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to modify the configuration of the device.
The vulnerability exists due to improper HTTPS input validation. A remote attacker can send a specially crafted HTTPS request to the web management interface and modify the configuration.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCatalyst PON Switch CGP-ONT-1P : before 1.1.1.14
Catalyst PON Switch CGP-ONT-4P : before 1.1.3.17
Catalyst PON Switch CGP-ONT-4PV : before 1.1.3.17
Catalyst PON Switch CGP-ONT-4PVC : before 1.1.3.17
Catalyst PON Switch CGP-ONT-4TVCW : before 1.1.3.17
External linksQ & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Command Injection
EUVDB-ID: #VU57961
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-40113
CWE-ID:
CWE-77 - Command injection
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary commands on the target system.
The vulnerability exists due to improper input validation in the web-based management interface. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCatalyst PON Switch CGP-ONT-1P : before 1.1.1.14
Catalyst PON Switch CGP-ONT-4P : before 1.1.3.17
Catalyst PON Switch CGP-ONT-4PV : before 1.1.3.17
Catalyst PON Switch CGP-ONT-4PVC : before 1.1.3.17
Catalyst PON Switch CGP-ONT-4TVCW : before 1.1.3.17
External linksQ & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
