Insecure functionality - Masking
Description
The system is not masking the data in the request and/or response, allowing sensitive and confidential information to be known.
Impact
Become aware of sensitive and/or confidential user information.
Recommendation
The system sends sensitive information through a channel or method that does not guarantee its confidentiality or integrity.
Threat
Anonymous attacker from adjacent network running a MitM.
Expected Remediation Time
⌚ 30 minutes.
Score
Default score using CVSS 3.1. It may change depending on the context of the vulnerability.
Base
- Attack vector: A
- Attack complexity: H
- Privileges required: N
- User interaction: R
- Scope: U
- Confidentiality: H
- Integrity: N
- Availability: N
Temporal
- Exploit code madurity: P
- Remediation level: X
- Report confidence: X
Result
- Vector string: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N/E:P/RL:X/RC:X
- Score:
- Base: 4.8
- Temporal: 4.6
- Severity:
- Base: Medium
- Temporal: Medium
Code Examples
Compliant code
Sensitive user information is sent masked
const accessRecoveryEmail = (req, res) => {
if (isValidUser(req.body.user)) {
if (validateToken == req.body.token){
//Implement a function to mask sensitive information
const recoveryEmail = getRecoveryEmail(req.body.userId);
const maskedEmail = MaskData.maskJSONFields(recoveryEmail, maskJSONOptions);
res.end(maskedEmail);
}
}
}
Non compliant code
The application sends potential sensitive information without masking
const accessRecoveryEmail = (req, res) => {
if (isValidUser(req.body.user)) {
if (validateToken == req.body.token){
//Sending unmasked sensitive information
const recoveryEmail = getRecoveryEmail(req.body.userId);
res.end(recoveryEmail);
}
}
}
Requirements
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