In Apache Spark before 2.2.0, it is possible for an attacker to take advantage of a user's trust in the server to trick them into visiting a link that points to a shared Spark cluster and submits data including MHTML to the Spark master, or history server. This data, which could contain a script, would then be reflected back to the user and could be evaluated and executed by MS Windows-based clients. It is not an attack on Spark itself, but on the user, who may then execute the script inadvertently when viewing elements of the Spark web UIs.
{
"github_reviewed": true,
"cwe_ids": [
"CWE-79"
],
"nvd_published_at": null,
"severity": "MODERATE",
"github_reviewed_at": "2020-06-16T21:53:27Z"
}