CVE-2020-8438: arris ruckus_zoneflex_r500_firmware OS Command Injection

Vulnerability summary

CVE-2020-8438 is a high (CVSS 9.0) OS Command Injection vulnerability in arris ruckus_zoneflex_r500_firmware. EPSS estimates a 1.59% chance of exploitation in the next 30 days, higher than 75.3% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 29-01-2020
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

Ruckus ZoneFlex R500 104.0.0.0.1347 devices allow an authenticated attacker to execute arbitrary OS commands via the hidden /forms/nslookupHandler form, as demonstrated by the nslookuptarget=|cat${IFS} substring.

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.