Affected versions of closure-util
insecurely download an executable over an unencrypted HTTP connection.
In scenarios where an attacker has a privileged network position, it is possible to intercept the response and replace the executable with a malicious one, resulting in code execution on the system running closure-util
.
To mitigate this issue:
1. Install the package using npm's --ignore-scripts
flag.
2. Navigate to the package directory, and open default-config.json
in a text editor
3. Change the download URLs in the compiler_url
and library_url
to https
equivalents
4. run npm i
in the package directory.
{ "github_reviewed_at": "2020-06-16T20:52:08Z", "cwe_ids": [ "CWE-311" ], "nvd_published_at": null, "severity": "HIGH", "github_reviewed": true }