The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2017:3463 advisory.

  - golang: arbitrary code execution during go get or go get -d (CVE-2017-15041)

  - golang: smtp.PlainAuth susceptible to man-in-the-middle password harvesting (CVE-2017-15042)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The following packages have been upgraded to a later upstream version:
golang (1.9.4).

Security Fix(es) :

  - golang: arbitrary code execution during 'go get' or 'go     get -d' (CVE-2017-15041)

  - golang: smtp.PlainAuth susceptible to man-in-the-middle     password harvesting (CVE-2017-15042)

  - golang: arbitrary code execution during 'go get' via C     compiler options (CVE-2018-6574)

Additional Changes :

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2018:0878 advisory.

    The golang packages provide the Go programming language compiler.

    The following packages have been upgraded to a later upstream version: golang (1.9.4). (BZ#1479095,     BZ#1499827)

    Security Fix(es):

    * golang: arbitrary code execution during go get or go get -d (CVE-2017-15041)

    * golang: smtp.PlainAuth susceptible to man-in-the-middle password harvesting (CVE-2017-15042)

    * golang: arbitrary code execution during go get via C compiler options (CVE-2018-6574)

    For more details about the security issue(s), including the impact, a CVSS score, and other related     information, refer to the CVE page(s) listed in the References section.

    Additional Changes:

    For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes     linked from the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has golang packages installed that are affected by multiple vulnerabilities:

  - An arbitrary command execution flaw was found in the way     Go's go get command handled the checkout of source     code repositories. A remote attacker capable of hosting     malicious repositories could potentially use this flaw     to cause arbitrary command execution on the client side.
    (CVE-2017-15041)

  - It was found that smtp.PlainAuth authentication scheme     in Go did not verify the TLS requirement properly. A     remote man-in-the-middle attacker could potentially use     this flaw to sniff SMTP credentials sent by a Go     application. (CVE-2017-15042)

  - An arbitrary command execution flaw was found in the way     Go's go get command handled gcc and clang sensitive     options during the build. A remote attacker capable of     hosting malicious repositories could potentially use     this flaw to cause arbitrary command execution on the     client side. (CVE-2018-6574)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Arbitrary code execution during go get or go get -d

Go before 1.8.4 and 1.9.x before 1.9.1 allows 'go get' remote command execution. Using custom domains, it is possible to arrange things so that example.com/pkg1 points to a Subversion repository but example.com/pkg1/pkg2 points to a Git repository. If the Subversion repository includes a Git checkout in its pkg2 directory and some other work is done to ensure the proper ordering of operations, 'go get' can be tricked into reusing this Git checkout for the fetch of code from pkg2. If the Subversion repository's Git checkout has malicious commands in .git/hooks/, they will execute on the system running 'go get.'(CVE-2017-15041)

smtp.PlainAuth susceptible to man-in-the-middle password harvesting

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.(CVE-2017-15042)

Arbitrary code execution during 'go get' via C compiler options

An arbitrary command execution flaw was found in the way Go's 'go get' command handled gcc and clang sensitive options during the build. A remote attacker capable of hosting malicious repositories could potentially use this flaw to cause arbitrary command execution on the client side.(CVE-2018-6574)

Arbitrary code execution during go get or go get -d :

Go before 1.8.4 and 1.9.x before 1.9.1 allows 'go get' remote command execution. Using custom domains, it is possible to arrange things so that example.com/pkg1 points to a Subversion repository but example.com/pkg1/pkg2 points to a Git repository. If the Subversion repository includes a Git checkout in its pkg2 directory and some other work is done to ensure the proper ordering of operations, 'go get' can be tricked into reusing this Git checkout for the fetch of code from pkg2. If the Subversion repository's Git checkout has malicious commands in .git/hooks/, they will execute on the system running 'go get.' (CVE-2017-15041)

smtp.PlainAuth susceptible to man-in-the-middle password harvesting

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. (CVE-2017-15042)

Security fix for CVE-2017-15041 and CVE-2017-15042

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote host is affected by the vulnerability described in GLSA-201710-23 (Go: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in Go. Please review the       references below for details.
  Impact :

    Remote attackers could execute arbitrary Go commands or conduct a man in       the middle attack.
  Workaround :

    There is no known workaround at this time.

An update for golang is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The golang packages provide the Go programming language compiler.

The following packages have been upgraded to a later upstream version:
golang (1.9.4). (BZ#1479095, BZ#1499827)

Security Fix(es) :

* golang: arbitrary code execution during 'go get' or 'go get -d' (CVE-2017-15041)

* golang: smtp.PlainAuth susceptible to man-in-the-middle password harvesting (CVE-2017-15042)

* golang: arbitrary code execution during 'go get' via C compiler options (CVE-2018-6574)

For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.5 Release Notes linked from the References section.

ID	Name	Product	Family	Published	Updated	Severity
105367	RHEL 7 : go-toolset-7 and go-toolset-7-golang (RHSA-2017:3463)	Nessus	Red Hat Local Security Checks	12/19/2017	4/27/2024	critical
109448	Scientific Linux Security Update : golang on SL7.x (noarch) (20180410)	Nessus	Scientific Linux Local Security Checks	5/1/2018	10/16/2024	critical
108990	RHEL 7 : golang (RHSA-2018:0878)	Nessus	Red Hat Local Security Checks	4/11/2018	11/7/2024	critical
127229	NewStart CGSL CORE 5.04 / MAIN 5.04 : golang Multiple Vulnerabilities (NS-SA-2019-0047)	Nessus	NewStart CGSL Local Security Checks	8/12/2019	5/8/2024	critical
109690	Amazon Linux 2 : golang (ALAS-2018-1011)	Nessus	Amazon Linux Local Security Checks	5/11/2018	10/9/2024	critical
104392	Amazon Linux AMI : golang (ALAS-2017-918)	Nessus	Amazon Linux Local Security Checks	11/6/2017	4/18/2018	critical
106006	Fedora 27 : golang (2017-f4fc897e8f)	Nessus	Fedora Local Security Checks	1/15/2018	1/6/2021	critical
104066	GLSA-201710-23 : Go: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	10/23/2017	1/11/2021	critical
109376	CentOS 7 : golang (CESA-2018:0878)	Nessus	CentOS Local Security Checks	4/27/2018	10/22/2024	critical
103899	Fedora 26 : golang (2017-6f1b90dbb7)	Nessus	Fedora Local Security Checks	10/18/2017	1/6/2021	critical
103997	Fedora 25 : golang (2017-8f7bca960b)	Nessus	Fedora Local Security Checks	10/20/2017	1/6/2021	critical

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