Description

The application stores sensitive information in the client-side storage (localStorage or sessionStorage). This exposes the information to unauthorized read operations.

Impact

Obtain sensitive information through XSS or MitB attacks.

Recommendation

Do not use the client side storage to store sensitive information, use cookies instead by defining their respective security attributes.

Threat

Attacker with physical or virtual access to the victims browser.

Expected Remediation Time

⌚ 120 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: R
• Scope: U
• Confidentiality: L
• Integrity: N
• Availability: N

Temporal

• Exploit code maturity: X
• Remediation level: X
• Report confidence: X

Result

• Vector string: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N/E:X/RL:X/RC:X
• Score:
• Base: 3.1
• Temporal: 3.1
• 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: A
• Confidentiality (VC): L
• Integrity (VI): N
• Availability (VA): N
• Confidentiality (SC): N
• Integrity (SI): N
• Availability (SA): N

Threat 4.0

• Exploit maturity: X

Result 4.0

• Vector string: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X
• Score:
• CVSS-BT: 2.1
• Severity:
• CVSS-BT: Low

Requirements

• 177.Avoid caching and temporary files
• 329.Keep client-side storage without sensitive data

Fixes

• C-Sharp
• Ruby

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