SMTP header injection
Description
Email injection is a security weakness that allows a malicious attacker to exploit email-related features, such as email contact forms found on websites, in order to send harmful email content to unintended recipients.
Impact
- Sending arbitrary email in a wide variety of attacks, such as spam, phishing, spear phishing.
Recommendation
Completely limit unsecured mail functions. Implement the use of specialized services or secure e-mail libraries. Validate incoming data and the escape of data that is not properly encrypted.
Threat
Authenticated attacker with access to the web service using the SMTP service from the Internet.
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: L
- Privileges required: L
- User interaction: N
- Scope: C
- Confidentiality: N
- Integrity: N
- Availability: L
Temporal
- Exploit code maturity: P
- Remediation level: U
- Report confidence: C
Result
- Vector string: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:L/E:P/RL:U/RC:C
- Score:
- Base: 5.0
- Temporal: 4.7
- 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: L
- User interaction: N
- Confidentiality (VC): N
- Integrity (VI): N
- Availability (VA): L
- 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:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
- Score:
- CVSS-BT: 2.1
- Severity:
- CVSS-BT: Low
Compliant code
Non compliant code
Requirements
Fixes
