Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. From 8.0.0 until 8.0.6, the SMTP MIME parser in rust/src/mime/smtp.rs does not fully reset state when processing Content-Type: message/rfc822 encapsulation. An outer MIME part's encoding or filename state can leak into the inner message, allowing crafted mail to evade detections based on file.data, file.name, or extracted URLs when SMTP MIME decoding is enabled.
This issue is fixed in version 8.0.6.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v3.1
Weakness Type (CWE)
References 5
https://github.com/OISF/suricata/commit/4985eb9daea2f765b6ef59a58fa02e5c71c0a77c
security-advisories@github.com
https://github.com/OISF/suricata/commit/c0215c7e175b0000ef8450928dd1f3453c48379b
security-advisories@github.com
https://github.com/OISF/suricata/releases/tag/suricata-8.0.6
security-advisories@github.com
https://github.com/OISF/suricata/security/advisories/GHSA-ph5p-pm8r-m355
security-advisories@github.com
https://redmine.openinfosecfoundation.org/issues/8649
security-advisories@github.com