CVE-2018-18556
high-risk
Published 2018-12-17
A privilege escalation issue was discovered in VyOS 1.1.8. The default configuration also allows operator users to execute the pppd binary with elevated (sudo) permissions. Certain input parameters are not properly validated. A malicious operator user can run the binary with elevated permissions and leverage its improper input validation condition to spawn an attacker-controlled shell with root privileges.
Do I need to act?
!
68.9% chance of exploitation in next 30 days
EPSS score — higher than 31% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.9/10
Critical
NETWORK
/ LOW complexity
Affected Products (1)
Affected Vendors
References (6)
57
/ 100
high-risk
Severity
33/34 · Critical
Exploitability
19/34 · Moderate
Exposure
5/34 · Minimal