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Vulnerability details: VCID-xz48-juyd-aaaj
Vulnerability ID VCID-xz48-juyd-aaaj
Aliases CVE-2017-15042
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 6.2
Risk 3.1
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-319 Cleartext Transmission of Sensitive Information
CWE-300 Channel Accessible by Non-Endpoint
System Score Found at
generic_textual Low http://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-15042.html
rhas Moderate https://access.redhat.com/errata/RHSA-2017:3463
rhas Moderate https://access.redhat.com/errata/RHSA-2018:0878
cvssv3 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-15042.json
epss 0.00144 https://api.first.org/data/v1/epss?cve=CVE-2017-15042
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epss 0.00279 https://api.first.org/data/v1/epss?cve=CVE-2017-15042
epss 0.00279 https://api.first.org/data/v1/epss?cve=CVE-2017-15042
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epss 0.00279 https://api.first.org/data/v1/epss?cve=CVE-2017-15042
epss 0.00285 https://api.first.org/data/v1/epss?cve=CVE-2017-15042
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epss 0.00285 https://api.first.org/data/v1/epss?cve=CVE-2017-15042
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epss 0.00285 https://api.first.org/data/v1/epss?cve=CVE-2017-15042
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rhbs medium https://bugzilla.redhat.com/show_bug.cgi?id=1498867
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15042
generic_textual Low https://github.com/golang/go/issues/22134
generic_textual Low https://golang.org/cl/68023
generic_textual Low https://golang.org/cl/68210
generic_textual Low https://groups.google.com/d/msg/golang-dev/RinSE3EiJBI/kYL7zb07AgAJ
cvssv2 4.3 https://nvd.nist.gov/vuln/detail/CVE-2017-15042
cvssv3 5.9 https://nvd.nist.gov/vuln/detail/CVE-2017-15042
Reference id Reference type URL
http://people.canonical.com/~ubuntu-security/cve/2017/CVE-2017-15042.html
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-15042.json
https://api.first.org/data/v1/epss?cve=CVE-2017-15042
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15042
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
https://security.gentoo.org/glsa/201710-23
http://www.securityfocus.com/bid/101197
1498867 https://bugzilla.redhat.com/show_bug.cgi?id=1498867
cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
cpe:2.3:a:golang:go:1.9:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:golang:go:1.9:*:*:*:*:*:*:*
CVE-2017-15042 https://nvd.nist.gov/vuln/detail/CVE-2017-15042
RHSA-2017:3463 https://access.redhat.com/errata/RHSA-2017:3463
RHSA-2018:0878 https://access.redhat.com/errata/RHSA-2018:0878
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2017-15042.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-15042
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://nvd.nist.gov/vuln/detail/CVE-2017-15042
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.22181
EPSS Score 0.00144
Published At March 29, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
There are no relevant records.