Oracle Java SE 7u241/8u231/11.0.5/13.0.1 Networking

Summaryinfo

A vulnerability, which was classified as critical, has been found in Oracle Java SE 7u241/8u231/11.0.5/13.0.1. The affected element is an unknown function of the component Networking. This manipulation causes an unknown weakness. This vulnerability is handled as CVE-2020-2593. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Oracle Java SE 7u241/8u231/11.0.5/13.0.1 (Programming Language Software) and classified as critical. Affected by this vulnerability is an unknown functionality of the component Networking. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

Vulnerability in the Java SE, Java SE Embedded product of Oracle Java SE (component: Networking). Supported versions that are affected are Java SE: 7u241, 8u231, 11.0.5 and 13.0.1; Java SE Embedded: 8u231. Difficult to exploit vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise Java SE, Java SE Embedded. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Java SE, Java SE Embedded accessible data as well as unauthorized read access to a subset of Java SE, Java SE Embedded accessible data. Note: This vulnerability applies to Java deployments, typically in clients running sandboxed Java Web Start applications or sandboxed Java applets (in Java SE 8), that load and run untrusted code (e.g., code that comes from the internet) and rely on the Java sandbox for security. This vulnerability can also be exploited by using APIs in the specified Component, e.g., through a web service which supplies data to the APIs. CVSS 3.0 Base Score 4.8 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N).

The weakness was released 01/15/2020 as Oracle Critical Patch Update Advisory - January 2020 as confirmed advisory (Website). It is possible to read the advisory at oracle.com. This vulnerability is known as CVE-2020-2593. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/21/2026). It is expected to see the exploit prices for this product decreasing in the near future.

The vulnerability scanner Nessus provides a plugin with the ID 294762 (MiracleLinux 7 : java-1.7.0-openjdk-1.7.0.251-2.6.21.0.0.1.el7.AXS7 (AXSA:2020-4487:02)), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (294762). Entries connected to this vulnerability are available at VDB-149016, VDB-149015, VDB-149014 and VDB-149013. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Programming Language Software

Vendor

• Oracle

Name

• Java SE

Version

• 7u241
• 8u231
• 11.0.5
• 13.0.1

License

• open-source

Website

• Vendor: https://www.oracle.com

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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