51 lines
1.8 KiB
YAML
51 lines
1.8 KiB
YAML
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: An HTTP Host header attack exists in ExponentCMS 2.6 and below in /exponent_constants.php. A modified HTTP header can change links on the webpage to an arbitrary value,leading to a possible attack vector for MITM.
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impact: |
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An attacker can manipulate the Host header to perform various attacks, including phishing, session hijacking, and cache poisoning.
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remediation: |
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Upgrade ExponentCMS to a version higher than 2.6 or apply the provided patch to fix the Host Header Injection vulnerability.
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reference:
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- https://nvd.nist.gov/vuln/detail/CVE-2021-38751
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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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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: 4.3
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cve-id: CVE-2021-38751
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cwe-id: CWE-116
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epss-score: 0.00242
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epss-percentile: 0.61927
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cpe: cpe:2.3:a:exponentcms:exponentcms:*:*:*:*:*:*:*:*
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metadata:
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max-request: 1
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vendor: exponentcms
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product: exponentcms
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tags: cve,cve2021,exponentcms
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http:
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- method: GET
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path:
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- "{{BaseURL}}"
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headers:
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Host: '{{randstr}}.tld'
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matchers-condition: and
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matchers:
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- type: word
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part: body
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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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condition: and
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- type: status
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status:
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- 200
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# digest: 4a0a00473045022100926774743cd127219b9f78ad9b62179f19421e814113eaaa66e505b62d1aa3d3022035ddc6ae01b65ef319a34df931ff2e2139291941db7bbc6205756a42ef47c62c:922c64590222798bb761d5b6d8e72950 |