WSO2 API Manager/IS as Key Manager/Identity Server File Based Service Provider Creation xml external entity reference

EntryeditHistoryDiffjsonxmlCTI

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	0.12

A vulnerability has been found in WSO2 API Manager, IS as Key Manager and Identity Server (Automation Software) (affected version unknown) and classified as problematic. Affected by this vulnerability is an unknown code of the component File Based Service Provider Creation. The manipulation with an unknown input leads to a xml external entity vulnerability. The CWE definition for the vulnerability is CWE-611. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

XML External Entity (XXE) vulnerability in the file based service provider creation feature of the Management Console in WSO2 API Manager 2.6.0, 3.0.0, 3.1.0, 3.2.0, and 4.0.0; and WSO2 IS as Key Manager 5.7.0, 5.9.0, and 5.10.0; and WSO2 Identity Server 5.7.0, 5.8.0, 5.9.0, 5.10.0, and 5.11.0. Allows attackers to gain read access to sensitive information or cause a denial of service via crafted GET requests.

The weakness was released 05/12/2022. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2021-42646 since 10/18/2021. The attack needs to be initiated within the local network. A single authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.

Productinfoedit

Type

Automation Software

Vendor

WSO2

Name

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2infoedit

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: 🔍

Exploitinginfoedit

Class: XML External Entity
CWE: CWE-611
ATT&CK: Unknown

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfoedit

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

Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: github.com

Timelineinfoedit

10/18/2021 CVE reserved
05/12/2022 +206 days Advisory disclosed
05/12/2022 +0 days VulDB entry created
05/14/2022 +2 days VulDB last update

Sourcesinfoedit

Advisory: github.com
Status: Confirmed

CVE: CVE-2021-42646 (🔒)

Entryinfoedit

Created: 05/12/2022 12:45 PM
Updated: 05/14/2022 03:35 PM
Changes: (1) source_cve_nvd_summary
Complete: 🔍