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CVE-2018-16494

HIGHCVSS 8.8/10EPSS 1.92%

Last modified

CVE-2018-16494 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In VOS and overly permissive "umask" may allow for authorized users of the server to gain unauthorized access through insecure file permissions that can result in an arbitrary read, write, or execution of newly created files and directories. Insecure umask setting was present throughout the Versa servers.. EPSS estimates a 1.92% chance of exploitation in the next 30 days.

Description

In VOS and overly permissive "umask" may allow for authorized users of the server to gain unauthorized access through insecure file permissions that can result in an arbitrary read, write, or execution of newly created files and directories. Insecure umask setting was present throughout the Versa servers.

Metrics

CVSS 3.1
8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
1.92%

77.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
Versa-NetworksVersa Operating System< 16.1r2s11
Versa-NetworksVersa Operating System>= 20.2.0, < 20.2.2
Versa-NetworksVersa Operating System>= 21.1.0, < 21.1.1

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2018-16494?
In VOS and overly permissive "umask" may allow for authorized users of the server to gain unauthorized access through insecure file permissions that can result in an arbitrary read, write, or execution of newly created files and directories. Insecure umask setting was present throughout the Versa servers.
How severe is CVE-2018-16494?
CVE-2018-16494 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.92% probability of exploitation in the next 30 days.
How do I fix CVE-2018-16494?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-16494?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST