CVE-2017-15042
Apache Go SMTP PLAIN Auth TLS Securty Bypass
Description
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.
INFO
Published Date :
Oct. 5, 2017, 9:29 p.m.
Last Modified :
Oct. 3, 2019, 12:03 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
2.2
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2017-15042.
| URL | 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 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2017-15042 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-15042 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-200 CWE-319 -
CVE Modified by [email protected]
Apr. 12, 2018
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2018:0878 [No Types Assigned] -
CVE Modified by [email protected]
Dec. 16, 2017
Action Type Old Value New Value Added Reference https://access.redhat.com/errata/RHSA-2017:3463 [No Types Assigned] -
Initial Analysis by [email protected]
Nov. 01, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:M/Au:N/C:P/I:N/A:N) Added CVSS V3 AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://security.gentoo.org/glsa/201710-23 No Types Assigned https://security.gentoo.org/glsa/201710-23 Third Party Advisory Changed Reference Type https://golang.org/cl/68210 No Types Assigned https://golang.org/cl/68210 Vendor Advisory Changed Reference Type https://golang.org/cl/68023 No Types Assigned https://golang.org/cl/68023 Issue Tracking, Patch, Vendor Advisory Changed Reference Type http://www.securityfocus.com/bid/101197 No Types Assigned http://www.securityfocus.com/bid/101197 Third Party Advisory, VDB Entry Changed Reference Type https://groups.google.com/d/msg/golang-dev/RinSE3EiJBI/kYL7zb07AgAJ No Types Assigned https://groups.google.com/d/msg/golang-dev/RinSE3EiJBI/kYL7zb07AgAJ Mailing List, Vendor Advisory Changed Reference Type https://github.com/golang/go/issues/22134 No Types Assigned https://github.com/golang/go/issues/22134 Issue Tracking, Patch, Vendor Advisory Added CWE CWE-200 Added CPE Configuration OR *cpe:2.3:a:golang:go:1.8.3:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:golang:go:1.9:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Oct. 24, 2017
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/201710-23 [No Types Assigned] -
CVE Modified by [email protected]
Oct. 11, 2017
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/101197 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-15042 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2017-15042
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.28 }} -0.14%
score
0.63936
percentile