#VU97983 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) in Hardware solutions


Published: 2024-10-03

Vulnerability identifier: #VU97983

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-41594

CWE-ID: CWE-338

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Vigor 1000B
Hardware solutions / Routers for home users
Vigor 2962
Hardware solutions / Routers for home users
Vigor 3910
Hardware solutions / Routers for home users
Vigor 3912
Hardware solutions / Routers for home users
Vigor 165
Hardware solutions / Routers for home users
Vigor 166
Hardware solutions / Routers for home users
Vigor 2135
Hardware solutions / Routers for home users
Vigor 2763
Hardware solutions / Routers for home users
Vigor 2765
Hardware solutions / Routers for home users
Vigor 2766
Hardware solutions / Routers for home users
Vigor 2865
Hardware solutions / Routers for home users
Vigor 2866
Hardware solutions / Routers for home users
Vigor 2915
Hardware solutions / Routers for home users
Vigor 2620
Hardware solutions / Routers for home users
Vigor LTE200
Hardware solutions / Routers for home users
Vigor 2133
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 2762
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 2860
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 2925
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 2862
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 2926
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 2952
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 3220
Hardware solutions / Routers & switches, VoIP, GSM, etc
Vigor 2832
Hardware solutions / Security hardware applicances

Vendor:

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to software uses a static string to seed the PRNG in OpenSSL for TLS. A remote attacker can perform MitM attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions


External links
http://www.forescout.com/resources/draybreak-draytek-research/


Q & 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.


Latest bulletins with this vulnerability