2021-08-16 19:18:49 +00:00
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id: CVE-2021-38751
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info:
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name: ExponentCMS <= 2.6 Host Header Injection
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author: dwisiswant0
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severity: medium
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description: |
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A HTTP Host header attack exists in ExponentCMS 2.6
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and below in /exponent_constants.php. A modified HTTP
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header can change links on the webpage to an arbitrary value,
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leading to a possible attack vector for MITM.
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2021-08-20 12:34:08 +00:00
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reference:
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2021-08-16 19:18:49 +00:00
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- https://github.com/exponentcms/exponent-cms/issues/1544
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- https://github.com/exponentcms/exponent-cms/blob/a9fa9358c5e8dc2ce7ad61d7d5bea38505b8515c/exponent_constants.php#L56-L64
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tags: cve,cve2021,exponentcms
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2021-09-10 11:26:40 +00:00
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
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cvss-score: 4.30
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cve-id: CVE-2021-38751
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cwe-id: CWE-116
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2021-08-16 19:18:49 +00:00
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requests:
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- method: GET
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path:
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2021-08-25 21:13:53 +00:00
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- "{{BaseURL}}"
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2021-08-16 19:18:49 +00:00
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headers:
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2021-08-18 13:54:49 +00:00
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Host: "{{randstr}}.tld"
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2021-08-17 11:43:45 +00:00
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matchers-condition: and
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2021-08-16 19:18:49 +00:00
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matchers:
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2021-08-25 21:13:53 +00:00
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- type: word
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words:
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- '{{randstr}}.tld'
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- 'EXPONENT.PATH'
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- 'EXPONENT.URL'
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2021-08-16 19:18:49 +00:00
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part: body
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2021-08-25 21:13:53 +00:00
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condition: and
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2021-08-17 11:42:51 +00:00
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- type: status
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status:
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2021-08-25 21:13:53 +00:00
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- 200
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