Description

The application does not define an SSLPinning mechanism or configures it insecurely, allowing an attacker to intercept and manipulate the information that travels through the application

Impact

- Intercept data from the app.
- Tamper data from the app.

Recommendation

- Implement robust security controls for certificates, offering either a predefined set of trusted Certification Authorities or incorporating integrity checks and white lists of trusted public keys that the application will accept.
- In res/xml/network_security_config.xml
- Define pin-sets with integrity hashes.
- Set trust-anchors by providing a list
of trusted Certification Authorities.

Threat

Anonymous attacker from the Internet.

Expected Remediation Time

⌚ 300 minutes.

Score

Default score using CVSS 3.1. It may change depending on the context of the src.

Base

• Attack vector: P
• Attack complexity: L
• Privileges required: N
• User interaction: N
• Scope: U
• Confidentiality: L
• Integrity: L
• Availability: N

Temporal

• Exploit code maturity: P
• Remediation level: U
• Report confidence: C

Result

• Vector string: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:U/RC:C
• Score:
• Base: 3.5
• Temporal: 3.3
• Severity:
• Base: Low
• Temporal: Low

Score 4.0

Default score using CVSS 4.0. It may change depending on the context of the src.

Base 4.0

• Attack vector: P
• Attack complexity: L
• Attack Requirements: N
• Privileges required: N
• User interaction: N
• Confidentiality (VC): L
• Integrity (VI): L
• Availability (VA): N
• Confidentiality (SC): N
• Integrity (SI): N
• Availability (SA): N

Threat 4.0

• Exploit maturity: P

Result 4.0

• Vector string: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
• Score:
• CVSS-BT: 0.9
• Severity:
• CVSS-BT: Low

Compliant code

There are correctly defined pin-sets in the security configuration file

                

  
      example.com
      
        ZC3lTYTDBJQVf1P2V7+fibTqbIsWNR/X7CWNVW+CEEA=
        GUAL5bejH7czkXcAeJ0vCiRxwMnVBsDlBMBsFtfLF8A=
      
  


            

Non compliant code

The application does not define any SSLPining mechanisms in the security configuration xml file

                

  
    example.com
  


            

Requirements

• 062.Define standard configurations
• 266.Disable insecure functionalities
• 273.Define a fixed security suite

Fixes

Free trial

Search for vulnerabilities in your apps for free with Fluid Attacks' automated security testing! Start your 21-day free trial and discover the benefits of the Continuous Hacking Essential plan. If you prefer the Advanced plan, which includes the expertise of Fluid Attacks' hacking team, fill out this contact form.