// For flags

CVE-2023-39320

Arbitrary code execution via go.mod toolchain directive in cmd/go

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

The go.mod toolchain directive, introduced in Go 1.21, can be leveraged to execute scripts and binaries relative to the root of the module when the "go" command was executed within the module. This applies to modules downloaded using the "go" command from the module proxy, as well as modules downloaded directly using VCS software.

La directiva de cadena de herramientas go.mod, introducida en Go 1.21, se puede aprovechar para ejecutar scripts y binarios relativos a la raíz del módulo cuando el comando "go" se ejecutó dentro del módulo. Esto se aplica a los módulos descargados utilizando el comando "go" desde el proxy del módulo, así como a los módulos descargados directamente mediante el software VCS.

Multiple vulnerabilities have been discovered in Go, the worst of which could lead to remote code execution. Versions greater than or equal to 1.20.10 are affected.

*Credits: Juho Nurminen of Mattermost
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2023-07-27 CVE Reserved
  • 2023-09-08 CVE Published
  • 2024-11-12 First Exploit
  • 2025-02-13 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-94: Improper Control of Generation of Code ('Code Injection')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Golang
Search vendor "Golang"
 Go
Search vendor "Golang" for product "Go"
 >= 1.21.0 < 1.21.1
Search vendor "Golang" for product "Go" and version " >= 1.21.0 < 1.21.1"
-
Affected