Cleartext Transmission of Sensitive Information Affecting golang-misc package, versions <0:1.8.4-1.41.amzn1
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Test your applications- Snyk ID SNYK-AMZN201803-GOLANGMISC-1709591
- published 27 Sep 2021
- disclosed 5 Oct 2017
Introduced: 5 Oct 2017
CVE-2017-15042 Open this link in a new tabHow to fix?
Upgrade Amazon-Linux:2018.03 golang-misc to version 0:1.8.4-1.41.amzn1 or higher.
This issue was patched in ALAS-2017-918.
NVD Description
Note: Versions mentioned in the description apply only to the upstream golang-misc package and not the golang-misc package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.
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
- http://www.securityfocus.com/bid/101197
- https://github.com/golang/go/issues/22134
- https://golang.org/cl/68023
- https://golang.org/cl/68210
- https://groups.google.com/d/msg/golang-dev/RinSE3EiJBI/kYL7zb07AgAJ
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15042
- https://security.gentoo.org/glsa/201710-23
- https://access.redhat.com/errata/RHSA-2017:3463
- https://access.redhat.com/errata/RHSA-2018:0878