Headline
CVE-2021-42646: Security Advisory WSO2-2021-1289 - WSO2 Platform Security
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.
Published: 14th October 2021
Version: 1.0.0
Severity: Medium
CVSS Score: 5.2 (CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:L)
AFFECTED PRODUCTS
WSO2 API Manager : 2.6.0 , 3.0.0 , 3.1.0 , 3.2.0 , 4.0.0
WSO2 IS as Key Manager : 5.7.0 , 5.9.0 , 5.10.0
WSO2 Identity Server : 5.7.0 , 5.8.0 , 5.9.0 , 5.10.0 , 5.11.0
OVERVIEW
XML External Entity (XXE) vulnerability in the Management Console
DESCRIPTION
An XML External Entity vulnerability was identified in the file based service provider creation feature of the Management Console.
IMPACT
By leveraging the vulnerability, a malicious actor could read confidential files from the file system or access limited HTTP resources that are reachable (over HTTP GET requests) to the vulnerable product. The same vulnerability could be used to perform denial of service attack by exhausting server resources.
SOLUTION
If the latest version of the affected WSO2 product is not mentioned under the affected product list, you may migrate to the latest version to receive security fixes. Otherwise you may apply the relevant fixes to the product based on the public fix: https://github.com/wso2/carbon-identity-framework/pull/3472
Note: If you are a WSO2 customer with Support Subscription, please use WSO2 Updates in order to apply the fix.
CREDITS
WSO2 thanks, Hakan Bayır for responsibly reporting the identified issue and working with us as we addressed it.
Related news
WSO2 Management Console suffers from an XML external entity injection vulnerability.
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.