An issue was discovered in Pippo 1.11.0. The function SerializationSessionDataTranscoder.decode() calls ObjectInputStream.readObject() to deserialize a SessionData object without checking the object types. An attacker can create a malicious object, base64 encode it, and place it in the PIPPO_SESSION field of a cookie. Sending this cookie may lead to remote code execution.
{
"nvd_published_at": null,
"cwe_ids": [
"CWE-502"
],
"github_reviewed_at": "2020-06-16T21:22:35Z",
"severity": "CRITICAL",
"github_reviewed": true
}