Insufficient data authenticity validation - APK signing
Description
The APK is not digitally signed.
Impact
Mischief users into installing an APK that is not owned by the original author.
Recommendation
Digitally sign the APK.
Threat
Non-authenticated attacker from the Internet.
Expected Remediation Time
⌚ 60 minutes.
Score
Default score using CVSS 3.1. It may change depending on the context of the src.
Base
- Attack vector: N
- Attack complexity: H
- Privileges required: N
- User interaction: N
- Scope: U
- Confidentiality: N
- Integrity: L
- Availability: N
Temporal
- Exploit code maturity: P
- 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:P/RL:O/RC:C
- Score:
- Base: 3.7
- Temporal: 3.4
- 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: N
- Attack complexity: H
- Attack Requirements: N
- Privileges required: N
- User interaction: N
- Confidentiality (VC): N
- 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:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
- Score:
- CVSS-BT: 2.9
- Severity:
- CVSS-BT: Low
Compliant code
Correctly configure the signing keys before building the apk
android {
signingConfigs {
getByName("config") {
keyAlias = keystoreProperties["keyAlias"]
keyPassword = keystoreProperties["keyPassword"]
storeFile = file(keystoreProperties["storeFile"])
storePassword = keystoreProperties["storePassword"]
}
}
...
}
Non compliant code
Unconfigured signing keys for the apk
android {
signingConfigs {
getByName("config") {
empty
}
}
...
}
Requirements
- 122.Validate credential ownership
- 173.Discard unsafe inputs
- 178.Use digital signatures
- 320.Avoid client-side control enforcement
Fixes
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