Epic Games Unreal Engine up to 436 Game Join improper authentication

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Epic Games Unreal Engine up to 436. Affected by this issue is some unknown functionality of the component Game Join Handler. Executing a manipulation can lead to improper authentication. This vulnerability is tracked as CVE-2003-1433. No exploit exists.

Detailsinfo

A vulnerability has been found in Epic Games Unreal Engine up to 436 and classified as problematic. This vulnerability affects some unknown functionality of the component Game Join Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect availability. CVE summarizes:

Epic Games Unreal Engine 226f through 436 does not validate the challenge key, which allows remote attackers to exhaust the player limit by joining the game multiple times.

The weakness was disclosed 12/31/2003 by Auriemma Luigi (Website). The advisory is shared for download at archives.neohapsis.com. This vulnerability was named CVE-2003-1433 since 10/22/2007. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 11228 (Unreal Engine Multiple Remote Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gain a shell remotely.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at X-Force (11304), Tenable (11228) and SecurityFocus (BID 6771†). The entries VDB-21349, VDB-21350 and VDB-21351 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

• Epic Games

Name

• Unreal Engine

Version

• 436

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 11228
Nessus Name: Unreal Engine Multiple Remote Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/05/2003 🔍
12/31/2003 +329 days 🔍
12/31/2003 +0 days 🔍
10/22/2007 +1391 days 🔍
09/01/2014 +2506 days 🔍
06/29/2021 +2493 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: Auriemma Luigi
Status: Not defined

CVE: CVE-2003-1433 (🔍)
GCVE (CVE): GCVE-0-2003-1433
GCVE (VulDB): GCVE-100-21352
X-Force: 11304
SecurityFocus: 6771 - Epic Games Unreal Engine Multiple Players Denial Of Service Vulnerability

See also: 🔍

Entryinfo

Created: 09/01/2014 16:31
Updated: 06/29/2021 12:43
Changes: 09/01/2014 16:31 (51), 07/04/2017 22:16 (6), 06/29/2021 12:43 (3)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

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