CVE intelligence and bounded remediation

CVE-2024-23788 — Sharp Jh-Rvb1 Firmware security vulnerability

Critical CVSS 9.1

Server-side request forgery vulnerability in Energy Management Controller with Cloud Services JH-RVB1 /JH-RV11 Ver.B0.1.9.1 and earlier allows a network-adjacent unauthenticated attacker to send an arbitrary HTTP request (GET) from the affected product.

Severity
Critical
CVSS
9.1 (3.1)
Published
2024-02-14
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-918

Affected products

  • sharp / jh-rvb1_firmware
  • sharp / jh-rv11_firmware

Matched remediation archetype

Server-side request forgery and unintended proxying

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Inventory server-side URL fetchers, webhooks, importers, previews, redirects, proxies, and protocol handlers reachable from untrusted input.
  • Map egress paths to internal services, metadata endpoints, loopback, private address space, and privileged control planes.
  • Review DNS resolution, redirect, proxy, credential-forwarding, and URL parsing behavior without requesting sensitive targets.

Remediate safely

  • Replace arbitrary destinations with named integrations or a strict allowlist of schemes, hosts, ports, and paths.
  • Resolve and validate every destination and redirect hop, then enforce egress policy independently of application checks.
  • Remove ambient credentials and sensitive headers from fetchers; apply response size, time, and content limits.

Authoritative sources

Complete CVE record and remediation plan

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