CVE-2023-28966

Summary

An Incorrect Default Permissions vulnerability in Juniper Networks Junos OS Evolved allows a low-privileged local attacker with shell access to modify existing files or execute commands as root. The issue is caused by improper file and directory permissions on certain system files, allowing an attacker with access to these files and folders to inject CLI commands as root. This issue affects Juniper Networks Junos OS Evolved: All versions prior to 20.4R3-S5-EVO; 21.2 versions prior to 21.2R3-EVO; 21.3 versions prior to 21.3R2-EVO.

Affected Software

VendorProductVersion RangeStatus
Juniper NetworksJunos OS Evolvedunspecified < 20.4R3-S5-EVOaffected
Juniper NetworksJunos OS Evolved21.2 < 21.2R3-EVOaffected
Juniper NetworksJunos OS Evolved21.3 < 21.3R2-EVOaffected

Weaknesses

  • CWE-276: CWE-276 Incorrect Default Permissions

Workarounds

Limit access to the system shell from trusted administrators only.

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References