| id: GO-2022-0201 |
| modules: |
| - module: cmd |
| versions: |
| - fixed: 1.8.7 |
| - introduced: 1.9.0-0 |
| fixed: 1.9.4 |
| vulnerable_at: 1.9.3 |
| packages: |
| - package: cmd/go |
| skip_fix: 'TODO: revisit this reason (cant request explicit version of standard library package cmd/go)' |
| summary: Remote command execution via "go get" command with cgo in cmd/go |
| description: |- |
| The "go get" command with cgo is vulnerable to remote command execution by |
| leveraging the gcc or clang plugin feature. |
| |
| When cgo is enabled, the build step during "go get" invokes the host C compiler, |
| gcc or clang, adding compiler flags specified in the Go source files. Both gcc |
| and clang support a plugin mechanism in which a shared-library plugin is loaded |
| into the compiler, as directed by compiler flags. This means that a Go package |
| repository can contain an attack.so file along with a Go source file that says |
| (for example) "// #cgo CFLAGS: -fplugin=attack.so" causing the attack plugin to |
| be loaded into the host C compiler during the build. Gcc and clang plugins are |
| completely unrestricted in their access to the host system. |
| published: 2022-08-09T18:15:41Z |
| cves: |
| - CVE-2018-6574 |
| credits: |
| - Christopher Brown of Mattermost |
| references: |
| - fix: https://go.googlesource.com/go/+/1dcb5836ad2c60776561da2923c70576ba2eefc6 |
| - report: https://go.dev/issue/23672 |
| - web: https://groups.google.com/g/golang-nuts/c/Gbhh1NxAjMU |
