Improper Verification of Cryptographic Signature in CommScope products - CVE-2020-22653

Vulnerability identifier: #VU137222

CSH Severity: High

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber

CVE-ID: CVE-2020-22653

CWE-ID: CWE-347

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

Vendor: CommScope

Affected software:
Ruckus R310
Ruckus R500
Ruckus R600
Ruckus T300
Ruckus T301n
Ruckus T301s
SmartZone 300 (SZ300)
ZoneDirector 1100
ZoneDirector 1200
ZoneDirector 3000
ZoneDirector 5000
SmartCell Gateway 200 (SCG200)
SmartZone 100 (SZ-100)
Virtual SmartZone (vSZ)

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper verification of cryptographic signature. A remote attacker can exploit the official image signature to force injection unauthorized image signature.

Install updates from vendor's website.

• https://hdhrmi.blogspot.com/2020/03/multiple-vulnerabilities-in-ruckus.html?m=1
• https://support.ruckuswireless.com/security_bulletins/302