Privilege Escalation in Oracle Java SE 8u391/11.0.21 & GraalVM Scripting
CVE-2024-20926 Published on January 16, 2024

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: Scripting). Supported versions that are affected are Oracle Java SE: 8u391, 8u391-perf, 11.0.21; Oracle GraalVM for JDK: 17.0.9; Oracle GraalVM Enterprise Edition: 20.3.12, 21.3.8 and 22.3.4. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. This vulnerability also applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets, that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. CVSS 3.1 Base Score 5.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

Vendor Advisory NVD

Vulnerability Analysis

CVE-2024-20926 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
NONE
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
NONE
Availability Impact:
NONE

Weakness Types

What is a Marshaling, Unmarshaling Vulnerability?

The application deserializes untrusted data without sufficiently verifying that the resulting data will be valid.

CVE-2024-20926 has been classified to as a Marshaling, Unmarshaling vulnerability or weakness.

What is an Authorization Vulnerability?

The software does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

CVE-2024-20926 has been classified to as an Authorization vulnerability or weakness.

Protection Mechanism Failure

The product does not use or incorrectly uses a protection mechanism that provides sufficient defense against directed attacks against the product. This weakness covers three distinct situations. A "missing" protection mechanism occurs when the application does not define any mechanism against a certain class of attack. An "insufficient" protection mechanism might provide some defenses - for example, against the most common attacks - but it does not protect against everything that is intended. Finally, an "ignored" mechanism occurs when a mechanism is available and in active use within the product, but the developer has not applied it in some code path.


Products Associated with CVE-2024-20926

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2024-20926 are published in these products:

Oracle GraalVM
 
Oracle Jdk
 
Oracle Java
 
NetApp Oncommand Insight
 
NetApp Cloud Insights Acquisition Unit
 
NetApp Cloud Insights Storage Workload Security Agent
 
Debian Linux
 
Canonical Ubuntu Linux
 
Oracle
 

Affected Versions

Oracle Corporation Java SE JDK and JRE:

Exploit Probability

EPSS
0.21%
Percentile
43.46%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.