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HistoryMar 22, 2024 - 6:39 p.m.

Unencrypted traffic between nodes with IPsec in github.com/cilium/cilium

2024-03-2218:39:28
Google
osv.dev
5
cilium
clusters
ipsec
unencrypted
traffic
layer 7
policies
envoy proxy
dns proxy
software

6.1 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.9 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.7%

In Cilium clusters with IPsec enabled and traffic matching Layer 7 policies, traffic that should be IPsec-encrypted between a node’s Envoy proxy and pods on other nodes is sent unencrypted, and traffic that should be IPsec-encrypted between a node’s DNS proxy and pods on other nodes is sent unencrypted.

6.1 Medium

CVSS3

Attack Vector

ADJACENT

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

6.9 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.7%