CVE-2023-28960

Junos OS Evolved: Docker repository is world-writeable, allowing low-privileged local user to inject files into Docker containers

HIGH
8.2
CVSS Score
Published: April 17, 2023 at 12:00 AM UTC
Updated: June 17, 2026 at 05:49 AM UTC
2 products affected across 2 vendorsJunos OS EvolvedJunos OS Evolved

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Severity
HIGH8.2
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

An Incorrect Permission Assignment for Critical Resource vulnerability in Juniper Networks Junos OS Evolved allows a local, authenticated low-privileged attacker to copy potentially malicious files into an existing Docker container on the local system. A follow-on administrator could then inadvertently start the Docker container leading to the malicious files being executed as root. This issue only affects systems with Docker configured and enabled, which is not enabled by default. Systems without Docker started are not vulnerable to this issue. This issue affects Juniper Networks Junos OS Evolved: 20.4 versions prior to 20.4R3-S5-EVO; 21.2 versions prior to 21.2R3-EVO; 21.3 versions prior to 21.3R3-EVO; 21.4 versions prior to 21.4R2-EVO. This issue does not affect Juniper Networks Junos OS Evolved versions prior to 19.2R1-EVO.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

20.4 ≤ v < 20.4R3-S5-EVO21.2 ≤ v < 21.2R3-EVO21.3 ≤ v < 21.3R3-EVO21.4 ≤ v < 21.4R2-EVO20.421.221.321.4
Vendor states this is fixed in 19.2R1-EVO (unaffected)
Affected range stops below 20.4R3-S5-EVO, so it looks safe — our inference, not a vendor statement
Affected range stops below 21.2R3-EVO, so it looks safe — our inference, not a vendor statement
Affected range stops below 21.3R3-EVO, so it looks safe — our inference, not a vendor statement
Affected range stops below 21.4R2-EVO, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGHjuniper
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-732

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