CVE-2018-18555

Public Exploit

Description

A sandbox escape issue was discovered in VyOS 1.1.8. It provides a restricted management shell for operator users to administer the device. By issuing various shell special characters with certain commands, an authenticated operator user can break out of the management shell and gain access to the underlying Linux shell. The user can then run arbitrary operating system commands with the privileges afforded by their account.

Category

9.9
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.45% Top 25%
Vendor Advisory vyos.io
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://blog.vyos.io/the-operator-level-is-proved-insecure-and-will-be-removed-in-the-next-releases vendor advisory exploit

Frequently Asked Questions

What is the severity of CVE-2018-18555?
CVE-2018-18555 has been scored as a critical severity vulnerability.
How to fix CVE-2018-18555?
To fix CVE-2018-18555, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-18555 being actively exploited in the wild?
It is possible that CVE-2018-18555 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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