Insecure Umask in Versa Servers Allows Unauthorized File Access
CVE-2018-16494

8.8HIGH

Key Information:

Vendor

Versa-networks

Status
Versa Vos
Vendor
CVE Published:
26 May 2021

What is CVE-2018-16494?

A security vulnerability exists in Versa servers due to an overly permissive umask setting. This configuration allows authorized users to potentially exploit insecure file permissions, resulting in unauthorized access to sensitive files. The vulnerability facilitates arbitrary read, write, or execution of files and directories that can be newly created, posing significant risks to the integrity and confidentiality of data managed by Versa servers. Immediate attention is advised to address the umask settings to safeguard against potential exploits.

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Affected Version(s)

Versa VOS Fixed Versions: 16.1R2S11, 20.2.2, 21.1.1, 21.2.1

References

https://hackerone.com/reports/1168191
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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