Axigen Mail Server before 10.5.69, 10.6.x before 10.6.40, and 10.7.x before 10.7.2 contains an unauthenticated denial of service vulnerability caused by unbounded nesting depth when parsing SOAP/XML and JSON request bodies before authentication. Attackers can send a single deeply nested request to WebMail, WebAdmin, or WebMail Proxy listeners to exhaust the stack and crash SMTP, IMAP, POP3, and web services repeatedly.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://www.axigen.com/kb/show/412
disclosure@vulncheck.com
https://www.axigen.com/updates/axigen-10.6.40
disclosure@vulncheck.com
https://www.axigen.com/updates/axigen-10.7.2
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/axigen-mail-server-before-10.5.69-10.6.40-…
disclosure@vulncheck.com