PT-2021-18019 · Unknown · Rconfig Server

Published 2021-10-11 · Updated 2021-10-18 · CVE-2021-29005

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: rConfig server version 3.9.6

Description: The issue is related to insecure permissions of the chmod command on the rConfig server. After installation, the apache user may execute chmod as root without a password, potentially allowing an attacker with low privileges to gain root access on the server.

Recommendations: For rConfig server version 3.9.6, consider restricting the execution of the chmod command by the apache user to prevent unauthorized access. As a temporary workaround, review and adjust the permissions of the chmod command to ensure it cannot be executed as root without proper authentication. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

CVE-2021-29005

Affected Products

Rconfig Server

References · 6

• 🔥 https://github.com/mrojz/rconfig-exploit/blob/main/CVE-2021-29005-POC.sh · Exploit
• http://rconfig.com · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-29005 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-29005 · Security Note
• https://t.me/cvenotify/22278 · Telegram Post
• https://t.me/cibsecurity/30337 · Telegram Post