National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2017-15042 Detail

Current 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.

Source:  MITRE      Last Modified:  10/05/2017      View Analysis Description

Quick Info

CVE Dictionary Entry:
CVE-2017-15042
Original release date:
10/05/2017
Last revised:
12/15/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 3.0):
CVSS v3 Base Score:
5.9 Medium
Vector:
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N (legend)
Impact Score:
3.6
Exploitability Score:
2.2
CVSS Version 3 Metrics:
Attack Vector (AV):
Network
Attack Complexity (AC):
High
Privileges Required (PR):
None
User Interaction (UI):
None
Scope (S):
Unchanged
Confidentiality (C):
High
Integrity (I):
None
Availability (A):
None
CVSS Severity (version 2.0):
CVSS v2 Base Score:
4.3 MEDIUM
Vector:
(AV:N/AC:M/Au:N/C:P/I:N/A:N) (legend)
Impact Subscore:
2.9
Exploitability Subscore:
8.6
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Medium
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink Resource Type Source Name
http://www.securityfocus.com/bid/101197 Third Party Advisory; VDB Entry External Source BID 101197
https://access.redhat.com/errata/RHSA-2017:3463 External Source REDHAT RHSA-2017:3463
https://github.com/golang/go/issues/22134 Issue Tracking; Patch; Vendor Advisory External Source CONFIRM https://github.com/golang/go/issues/22134
https://golang.org/cl/68023 Issue Tracking; Patch; Vendor Advisory External Source CONFIRM https://golang.org/cl/68023
https://golang.org/cl/68210 Vendor Advisory External Source CONFIRM https://golang.org/cl/68210
https://groups.google.com/d/msg/golang-dev/RinSE3EiJBI/kYL7zb07AgAJ Mailing List; Vendor Advisory External Source CONFIRM https://groups.google.com/d/msg/golang-dev/RinSE3EiJBI/kYL7zb07AgAJ
https://security.gentoo.org/glsa/201710-23 Third Party Advisory External Source GENTOO GLSA-201710-23

Technical Details

Vulnerability Type (View All)

  • Information Leak / Disclosure (CWE-200)

Change History 4 change records found - show changes