CVE intelligence and bounded remediation

CVE-2020-15594 — An SSRF issue was discovered in Zoho Application Control Plus before version 10.0.511

Medium CVSS 4.3

An SSRF issue was discovered in Zoho Application Control Plus before version 10.0.511. The mail gateway configuration feature allows an attacker to perform a scan in order to discover open ports on a machine as well as available machines on the network segment on which the instance of the product is deployed.

Severity
Medium
CVSS
4.3 (3.1)
Published
2020-09-30
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-918

Affected products

  • zohocorp / manageengine_application_control_plus

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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