Insecure Permissions on rConfig Server by RConfig
CVE-2021-29005

8.8HIGH

Key Information:

Vendor

Rconfig

Status
Rconfig
Vendor
CVE Published:
11 October 2021

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-29005?

The rConfig server version 3.9.6 presents a security issue due to incorrect permissions on the chmod command, which can be exploited by an unauthorized user. After the rConfig installation, the Apache user may execute the chmod command with root privileges without requiring a password. This vulnerability can allow attackers with low privilege to escalate their access to root level, posing significant security risks to the server environment.

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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-2021-29005 - Proof of Concept

References

http://rconfig.com
x_refsource_MISC
https://github.com/mrojz/rconfig-exploit/blob/main/CVE-20...
x_refsource_MISC

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
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

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