An unintended cleartext issue exists in Go before 1.8.4 and 1.9.x before 1.9.1. RFC 4954 requires that, during SMTP, the PLAIN auth scheme must only be used on network connections secured with TLS. The original implementation of smtp.PlainAuth in Go 1.0 enforced this requirement, and it was documented to do so. In 2013, upstream issue #5184, this was changed so that the server may decide whether PLAIN is acceptable. The result is that if you set up a man-in-the-middle SMTP server that doesn't advertise STARTTLS and does advertise that PLAIN auth is OK, the smtp.PlainAuth implementation sends the username and password.
References
Link | Resource |
---|---|
http://www.securityfocus.com/bid/101197 | Third Party Advisory VDB Entry |
https://access.redhat.com/errata/RHSA-2017:3463 | |
https://access.redhat.com/errata/RHSA-2018:0878 | |
https://github.com/golang/go/issues/22134 | Issue Tracking Patch Vendor Advisory |
https://golang.org/cl/68023 | Issue Tracking Patch Vendor Advisory |
https://golang.org/cl/68210 | Vendor Advisory |
https://groups.google.com/d/msg/golang-dev/RinSE3EiJBI/kYL7zb07AgAJ | Mailing List Vendor Advisory |
https://security.gentoo.org/glsa/201710-23 | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2017-10-05T21:00:00
Updated: 2018-04-11T09:57:01
Reserved: 2017-10-05T00:00:00
Link: CVE-2017-15042
JSON object: View
NVD Information
Status : Modified
Published: 2017-10-05T21:29:00.473
Modified: 2019-10-03T00:03:26.223
Link: CVE-2017-15042
JSON object: View
Redhat Information
No data.
CWE