OpenAPI Tools OpenAPI Generator up to 5.0.x File.createTempFile temp file

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.
3.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in OpenAPI Tools OpenAPI Generator up to 5.0.x. Affected is the function File.createTempFile. Executing a manipulation can lead to temp file. The identification of this vulnerability is CVE-2021-21429. The attack can only be executed locally. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in OpenAPI Tools OpenAPI Generator up to 5.0.x. It has been declared as problematic. This vulnerability affects the function File.createTempFile. The manipulation with an unknown input leads to a temp file vulnerability. The CWE definition for the vulnerability is CWE-377. Creating and using insecure temporary files can leave application and system data vulnerable to attack. As an impact it is known to affect confidentiality.

The weakness was shared 04/28/2021. The advisory is shared for download at github.com. This vulnerability was named CVE-2021-21429. There are known technical details, but no exploit is available.

Upgrading to version 5.1.0 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.3
VulDB Meta Temp Score: 3.2

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Temp file
CWE: CWE-377
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: OpenAPI Generator 5.1.0
Patch: github.com

Timelineinfo

12/22/2020 🔍
04/28/2021 +126 days 🔍
04/28/2021 +0 days 🔍
05/02/2021 +4 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-21429 (🔍)
GCVE (CVE): GCVE-0-2021-21429
GCVE (VulDB): GCVE-100-174184

Entryinfo

Created: 04/28/2021 08:44
Updated: 05/02/2021 13:23
Changes: 04/28/2021 08:44 (39), 05/02/2021 13:16 (6), 05/02/2021 13:23 (1)
Complete: 🔍
Cache ID: 216::103

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