Insecure service configuration - Wireless Certificates
Description
Certificates provide a more secure form of network authentication. These could be stealed for a malware for use communications fraud and data exfiltration, furthermore, non-existent or faulty validation of the access point certificate, allows attackers to obtain the challenge response values used in authentication. Attackers could use this data to bruteforce the password hash for the legitimate network.
Impact
- Falsify business services, corrupting the trust provided by a valid certificate, so that sensitive communications can be decrypted.
- Exploit for entry due to unsecured or lightly protected wireless access.
Recommendation
Install correct certificates on servers, revoke vulnerable ones and validate new keys and certificates are installed and working.
Threat
Authenticated attacker from the Internet.
Expected Remediation Time
⌚ minutes.
Score
Default score using CVSS 3.1. It may change depending on the context of the src.
Base
- Attack vector: N
- Attack complexity: L
- Privileges required: L
- User interaction: N
- Scope: U
- Confidentiality: L
- Integrity: L
- Availability: N
Temporal
- Exploit code madurity: X
- Remediation level: X
- Report confidence: X
Result
- Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:X/RL:X/RC:X
- Score:
- Base: 5.4
- Temporal: 5.4
- Severity:
- Base: Medium
- Temporal: Medium
Compliant code
All services use secure configurations and protocols
Defaults:
policyProject: 'DefaultPolicies'
Policies:
MQEndpoint: 'MQEndpoint'
remoteDefaultQueueManager: '{MQClientPolicy}:MQEndpoint'
RestAdminListener:
requireClientCert: true
BrokerRegistry:
mqKeyRepository: /startup/ssl/keystore
ResourceManagers: JVM: jvmSystemProperty: '-Dcom.ibm.fxr.passfileenc=n'
Log:
consoleLog: true
outputFormat: 'ibmjson'
AdminLog:
enabled: true
consoleLog: true
Protocol:
tls: enabled
version: 1.2
Non compliant code
A service is configured with poor security protocols, such as ssl
Defaults:
policyProject: 'DefaultPolicies'
Policies:
MQEndpoint: 'MQEndpoint'
remoteDefaultQueueManager: '{MQClientPolicy}:MQEndpoint'
RestAdminListener:
requireClientCert: false
BrokerRegistry:
mqKeyRepository: /startup/ssl/keystore
ResourceManagers: JVM: jvmSystemProperty: '-Dcom.ibm.fxr.passfileenc=n'
Log:
consoleLog: true
outputFormat: 'ibmjson'
AdminLog:
enabled: true
consoleLog: true
Protocol:
ssl: enabled
Requirements
- 089.Limit validity of certificates
- 090.Use valid certificates
- 093.Use consistent certificates
- 266.Disable insecure functionalities
Fixes
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