Insufficient data authenticity validation - JAR signing
Description
The JAR files that compose the application are not correctly signed, allowing an attacker to modify the code withouth raising alerts on an integrity check.
Impact
Inject malicious code in the application without raising alerts.
Recommendation
Sign the application JAR files using a trusted key.
Threat
Anonymous attacker from Internet with access to the JAR Files.
Expected Remediation Time
⌚ 90 minutes.
Score
Default score using CVSS 3.1. It may change depending on the context of the vulnerability.
Base
- Attack vector: N
- Attack complexity: H
- Privileges required: N
- User interaction: N
- Scope: U
- Confidentiality: N
- Integrity: L
- Availability: N
Temporal
- Exploit code madurity: X
- Remediation level: O
- Report confidence: C
Result
- Vector string: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N/E:X/RL:O/RC:C
- Score:
- Base: 3.7
- Temporal: 3.6
- Severity:
- Base: Low
- Temporal: Low
Code Examples
Compliant code
Sign all the JAR files of the application with a certified key tool
jarsigner -keystore NONE -certchain "bundle.pem" -tsa "http://time.certum.pl" -storetype PKCS11
-providerClass sun.security.pkcs11.SunPKCS11 -providerArg "provider.cfg"
-storepass "[your_pin]" "[your_code].jar" "[your_alias]"
Non compliant code
The source code has .jar files that were not signed before runtime, please check to verify before compiling