#VU47690 Improper control of interaction frequency


Published: 2020-10-12 | Updated: 2020-10-16

Vulnerability identifier: #VU47690

Vulnerability risk: Medium

CVSSv3: 4.6 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-5141

CWE-ID: CWE-799

Exploitation vector: Network

Exploit availability: No

Vulnerable software: SonicOS
Operating systems & Components / Operating system

Vendor: SonicWall

Description

The vulnerability allows a remote attacker to perform a brute-force attack.

The vulnerability exists due to usage of predictable Virtual Assist ticket identifiers and lack of anti-automation protection. A remote non-authenticated attacker can brute-force the Virtual Assist ticket ID in the firewall SSLVPN service.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

SonicOS: 5.9, 6.0, 6.5, 7.0

CPE

External links
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0016


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