{"id":"CVE-2024-52308","aliases":["GHSA-p2h2-3vg9-4p87","GO-2024-3269"],"url":"https://o3.security/vulnerability/CVE-2024-52308","summary":"Connecting to a malicious Codespaces via GH CLI could allow command execution on the user's computer","details":"### Summary\n\nA security vulnerability has been identified in GitHub CLI that could allow remote code execution (RCE) when users connect to a malicious Codespace SSH server and use the `gh codespace ssh` or `gh codespace logs` commands.\n\n### Details\n\nThe vulnerability stems from the way GitHub CLI handles SSH connection details when executing commands. When developers connect to remote Codespaces, they typically use a SSH server running within a devcontainer, often provided through the [default devcontainer image](https://docs.github.com/en/codespaces/setting-up-your-project-for-codespaces/adding-a-dev-container-configuration/introduction-to-dev-containers#using-the-default-dev-container-configuration).  GitHub CLI [retrieves SSH connection details](https://github.com/cli/cli/blob/30066b0042d0c5928d959e288144300cb28196c9/internal/codespaces/rpc/invoker.go#L230-L244), such as remote username, which is used in [executing `ssh` commands](https://github.com/cli/cli/blob/e356c69a6f0125cfaac782c35acf77314f18908d/pkg/cmd/codespace/ssh.go#L263) for `gh codespace ssh` or `gh codespace logs` commands.\n\nThis exploit occurs when a malicious third-party devcontainer contains a modified SSH server that injects `ssh` arguments within the SSH connection details. `gh codespace ssh` and `gh codespace logs` commands could execute arbitrary code on the user's workstation if the remote username contains something like `-oProxyCommand=\"echo hacked\" #`.  The `-oProxyCommand` flag causes `ssh` to execute the provided command while `#` shell comment causes any other `ssh` arguments to be ignored.\n\nIn `2.62.0`, the remote username information is being validated before being used.\n\n### Impact\n\nSuccessful exploitation could lead to arbitrary code execution on the user's workstation, potentially compromising the user's data and system.\n\n### Remediation and Mitigation\n\n1. Upgrade `gh` to `2.62.0`\n2. Exercise caution when using custom devcontainer images, prefer default or pre-built devcontainers from trusted sources.","published":"2024-11-14T22:55:38.693Z","modified":"2026-08-12T03:51:26.871362821Z","cvss":{"score":8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/cli/cli/v2","fixedVersion":"2.62.0"},{"ecosystem":"Go","name":"github.com/cli/cli","fixedVersion":"2.62.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/52xxx/CVE-2024-52308.json"},{"type":"ADVISORY","url":"https://github.com/cli/cli/security/advisories/GHSA-p2h2-3vg9-4p87"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-52308"},{"type":"PACKAGE","url":"https://github.com/cli/cli"},{"type":"WEB","url":"https://pkg.go.dev/vuln/GO-2024-3269"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:26.871362821Z"}}