User enumeration
Description
The system provides different responses for existent and non-existent users, allowing an attacker to enumerate valid users via error messages, response times, frames count, among other techniques.
Impact
Obtain valid application usernames.
Recommendation
Set the same server response for existent and non-existent users.
Threat
Anonymous attacker from the Internet.
Expected Remediation Time
⌚ 15 minutes.
Score
Default score using CVSS 3.1. It may change depending on the context of the src.
Base
- Attack vector: N
- Attack complexity: L
- Privileges required: N
- User interaction: N
- Scope: U
- Confidentiality: L
- Integrity: N
- Availability: N
Temporal
- Exploit code maturity: X
- Remediation level: U
- Report confidence: C
Result
- Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:X/RL:U/RC:C
- Score:
- Base: 5.3
- Temporal: 5.3
- Severity:
- Base: Medium
- Temporal: Medium
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: L
- Attack Requirements: N
- Privileges required: N
- User interaction: N
- 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:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X
- Score:
- CVSS-BT: 6.9
- Severity:
- CVSS-BT: Medium
Requirements
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.