CVE-2018-16873

Severity CVSS v4.0:

Pending analysis

Type:

CWE-20 Input Validation

Publication date:

14/12/2018

Last modified:

07/11/2023

Description

In Go before 1.10.6 and 1.11.x before 1.11.3, the "go get" command is vulnerable to remote code execution when executed with the -u flag and the import path of a malicious Go package, or a package that imports it directly or indirectly. Specifically, it is only vulnerable in GOPATH mode, but not in module mode (the distinction is documented at https://golang.org/cmd/go/#hdr-Module_aware_go_get). Using custom domains, it&#39;s possible to arrange things so that a Git repository is cloned to a folder named ".git" by using a vanity import path that ends with "/.git". If the Git repository root contains a "HEAD" file, a "config" file, an "objects" directory, a "refs" directory, with some work to ensure the proper ordering of operations, "go get -u" can be tricked into considering the parent directory as a repository root, and running Git commands on it. That will use the "config" file in the original Git repository root for its configuration, and if that config file contains malicious commands, they will execute on the system running "go get -u".

Impact

Vector 3.x

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.10 HIGH
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

8.10

Severity 3.x

HIGH

Vector 2.0

AV:N/AC:M/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 6.80 MEDIUM
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Medium
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0

6.80

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:golang:go::::::::		1.10.6 (excluding)
cpe:2.3:a:golang:go::::::::	1.11.0 (including)	1.11.3 (excluding)
cpe:2.3:a:opensuse:backports_sle:15.0:-::::::
cpe:2.3:o:opensuse:leap:15.0:::::::*
cpe:2.3:o:opensuse:leap:15.1:::::::*
cpe:2.3:o:opensuse:leap:42.3:::::::*
cpe:2.3:o:suse:linux_enterprise_server:12:-::::::
cpe:2.3:o:debian:debian_linux:9.0:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:golang:go::::::::		1.10.6 (excluding)
cpe:2.3:a:golang:go::::::::	1.11.0 (including)	1.11.3 (excluding)
cpe:2.3:a:opensuse:backports_sle:15.0:-::::::
cpe:2.3:o:opensuse:leap:15.0:::::::*
cpe:2.3:o:opensuse:leap:15.1:::::::*
cpe:2.3:o:opensuse:leap:42.3:::::::*
cpe:2.3:o:suse:linux_enterprise_server:12:-::::::
cpe:2.3:o:debian:debian_linux:9.0:::::::*

CVE-2018-16873

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools