Description
CVX is not resilient to unexpected messages from a connected switch. This leads to agent crashes on CVX causing instability in the CVX cluster. An attacker could use this behavior to create a denial of service (DoS) scenario. Note that this would require the attacker to have a high privilege access to the connected switch to be able to send custom TCP packets to the CVX.
CVSS breakdown
CVSS 4.0
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality (Vulnerable System)
None
Integrity (Vulnerable System)
None
Availability (Vulnerable System)
High
Confidentiality (Subsequent System)
None
Integrity (Subsequent System)
None
Availability (Subsequent System)
None
CVSS 3.1
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected products
- Arista Networks / EOS / CloudVision eXchange (CVX)4.34.0F – 4.34.1F
- Arista Networks / EOS / CloudVision eXchange (CVX)4.33.0M – 4.33.4M
- Arista Networks / EOS / CloudVision eXchange (CVX)4.32.0M – 4.32.6M
- Arista Networks / EOS / CloudVision eXchange (CVX)4.31.0 – 4.32.0
- Arista Networks / EOS / CloudVision eXchange (CVX)4.30.0 – 4.31.0