Amazon Linux AMI : golang (ALAS-2016-731) (httpoxy)

high Nessus Plugin ID 93009

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Synopsis

The remote Amazon Linux AMI host is missing a security update.

Description

An input-validation flaw was discovered in the Go programming language built in CGI implementation, which set the environment variable 'HTTP_PROXY' using the incoming 'Proxy' HTTP-request header. The environment variable 'HTTP_PROXY' is used by numerous web clients, including Go's net/http package, to specify a proxy server to use for HTTP and, in some cases, HTTPS requests. This meant that when a CGI-based web application ran, an attacker could specify a proxy server which the application then used for subsequent outgoing requests, allowing a man-in-the-middle attack.

Solution

Run 'yum update golang' to update your system.

Plugin Details

Severity: High

ID: 93009

File Name: ala_ALAS-2016-731.nasl

Version: 2.6

Type: local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 8/18/2016

Updated: 1/28/2026

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2016-5386

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:amazon:linux, p-cpe:/a:amazon:linux:golang, p-cpe:/a:amazon:linux:golang-bin, p-cpe:/a:amazon:linux:golang-docs, p-cpe:/a:amazon:linux:golang-misc, p-cpe:/a:amazon:linux:golang-src, p-cpe:/a:amazon:linux:golang-tests

Required KB Items: Host/local_checks_enabled, Host/AmazonLinux/release, Host/AmazonLinux/rpm-list

Exploit Ease: No known exploits are available

Patch Publication Date: 8/17/2016

Reference Information

CVE: CVE-2016-5386

ALAS: 2016-731

Detections

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