Arbitrary code execution via go.mod toolchain directive in cmd/go
CVE-2023-39320

9.8CRITICAL

Key Information:

Vendor

Go Toolchain

Status
Cmd/go
Vendor
CVE Published:
8 September 2023

What is CVE-2023-39320?

The Go toolchain introduces a vulnerability that allows the execution of scripts and binaries relative to the root of a module. This is particularly concerning when executing the 'go' command within a module, as it affects modules downloaded from the module proxy and through version control system software. Exploiting this flaw may lead to unauthorized command execution, emphasizing the necessity for updating to secure versions and safeguarding project dependencies.

Affected Version(s)

cmd/go 1.21.0-0 < 1.21.1

References

https://go.dev/issue/62198
https://go.dev/cl/526158
https://groups.google.com/g/golang-dev/c/2C5vbR-UNkI/m/L1...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Juho Nurminen of Mattermost
.