Local File Inclusion Vulnerability in OS4Ed OpenSIS Community Software
CVE-2021-40651

6.5MEDIUM

Key Information:

Vendor

Os4ed

Status
Opensis
Vendor
CVE Published:
29 September 2021

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 76%

What is CVE-2021-40651?

The OS4Ed OpenSIS Community software version 8.0 is susceptible to a local file inclusion vulnerability found in the Modules.php file. By manipulating the modname parameter, an attacker could leverage this vulnerability to include arbitrary files from the server's filesystem, potentially exposing sensitive information as long as the application has the necessary access rights. This poses significant security risks, emphasizing the need for timely mitigation measures.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-40651 - Proof of Concept

References

https://youtu.be/wFwlbXANRCo
x_refsource_MISC
https://github.com/MiSERYYYYY/Vulnerability-Reports-and-D...
x_refsource_MISC
https://www.exploit-db.com/exploits/50259
x_refsource_MISC

EPSS Score

76% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.