Root command execution via writable system files
Published Apr 17, 2023 · Updated Feb 6, 2025
Incorrect default permissions in Juniper Networks Junos OS Evolved allow local users with shell access to execute commands as root. Certain system files and directories are writable by low-privileged accounts, permitting injected CLI commands to run with root privileges. The attack requires local shell access and allows modification of existing files or complete compromise of the device.
Summary
What happened
Incorrect default permissions in Juniper Networks Junos OS Evolved allow local users with shell access to execute commands as root. Certain system files and directories are writable by low-privileged accounts, permitting injected CLI commands to run with root privileges. The attack requires local shell access and allows modification of existing files or complete compromise of the device.
The record
- CVE
- CVE-2023-28966
- Published
- Apr 17, 2023
- Updated
- Feb 6, 2025
- Vendor
- Juniper Networks
- Product
- Junos OS Evolved
- Classifications
- CWE-276, T1548
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 17, 2023CVE publishedPublication date reported by the CVE source.
- Feb 6, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=21.2 <21.2R3-EVO
- Affected versionversion=21.3 <21.3R2-EVO
- Affected versionversion=unspecified <20.4R3-S5-EVO
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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