Starbucks: Java Deserialization RCE via JBoss on card.starbucks.in

2017-04-1520:54:33

joaomatosf

hackerone.com

398

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.415 Medium

EPSS

Percentile

96.8%

JSON

The researcher discovered that a Starbucks online system running on the domain http://card.starbucks.in/ performs deserialization of java objects that are submitted by users on a specific path belonging to JBOSSMQ without sanitizing/validating the data. As a result, an attacker can inject a malicious java object capable of running a command on the system during the deserialization process. We have immediately taken necassary mesures to patch this vulnerability and the researcher responsibly disclosed it to RedHat as well. This was assigned CVE-2017-7504