The system allows the upload of files with two extensions or with unsafe ones, such as .html, .php or .exe. Furthermore, the system does not validate whether or not the file is free from malicious code.
Upload malicious files to the server.
- Validate with regular expressions that the file has only one extension.
- Validate with an antivirus software that the file does not contain any type of malicious code.
- Validate that Content Type corresponds to the files extension before upload it to the server.
Authenticated attacker from the Internet.
Expected Remediation Time
⌚ 30 minutes.
Default score using CVSS 3.1. It may change depending on the context of the src.
- Attack vector: N
- Attack complexity: L
- Privileges required: L
- User interaction: N
- Scope: U
- Confidentiality: N
- Integrity: L
- Availability: N
- Exploit code madurity: P
- Remediation level: U
- Report confidence: C
- Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:U/RC:C
- Base: 4.3
- Temporal: 4.1
- Base: Medium
- Temporal: Medium
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