Insufficient Entropy in Zyxel GS1900 series switches
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-34746 |
| CWE-ID | CWE-331 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
GS1900-8 Hardware solutions / Routers & switches, VoIP, GSM, etc GS1900-8HP Hardware solutions / Routers & switches, VoIP, GSM, etc GS1900-10HP Hardware solutions / Routers & switches, VoIP, GSM, etc GS1900-16 Hardware solutions / Routers & switches, VoIP, GSM, etc GS1900-24 Hardware solutions / Routers & switches, VoIP, GSM, etc GS1900-24E Hardware solutions / Routers & switches, VoIP, GSM, etc GS1900-24EP Hardware solutions / Routers & switches, VoIP, GSM, etc GS1900-24HPv2 Hardware solutions / Routers & switches, VoIP, GSM, etc GS1900-48 Hardware solutions / Routers & switches, VoIP, GSM, etc GS1900-48HPv2 Hardware solutions / Routers & switches, VoIP, GSM, etc |
| Vendor | ZyXEL Communications Corp. |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Insufficient Entropy
EUVDB-ID: #VU67632
Risk: Medium
CVSSv4.0: 4.6 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2022-34746
CWE-ID:
CWE-331 - Insufficient Entropy
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to sensitive information on the system.
The vulnerability exists due to improper use of randomness sources with low entropy for RSA key pair generation. A remote attacker can retrieve a private key.
MitigationInstall updates from vendor's website.
Vulnerable software versionsGS1900-8: 2.60(AAHH.4)C0
GS1900-8HP: 2.60(AAHI.4)C0
GS1900-10HP: 2.60(AAZI.4)C0
GS1900-16: 2.60(AAHJ.4)C0
GS1900-24: 2.60(AAHL.4)C0
GS1900-24E: 2.60(AAHK.4)C0
GS1900-24EP: 2.60(ABTO.4)C0
GS1900-24HPv2: 2.60(ABTP.4)C0
GS1900-48: 2.60(AAHN.4)C0
GS1900-48HPv2: 2.60(ABTQ.4)C0
CPE2.3- cpe:2.3:h:zyxel_communications_corp:gs1900-8:2.60(AAHH.4)C0:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:gs1900-8hp:2.60(AAHI.4)C0:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:gs1900-10hp:2.60(AAZI.4)C0:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:gs1900-16:2.60(AAHJ.4)C0:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:gs1900-24:2.60(AAHL.4)C0:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:gs1900-24e:2.60(AAHK.4)C0:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:gs1900-24ep:2.60(ABTO.4)C0:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:gs1900-24hpv2:2.60(ABTP.4)C0:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:gs1900-48:2.60(AAHN.4)C0:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:gs1900-48hpv2:2.60(ABTQ.4)C0:*:*:*:*:*:*:*
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
