PT-2020-17406 · Klog · Klog Server

Published 2020-12-27 · Updated 2021-02-18 · CVE-2020-35729

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions KLog Server version 2.4.1

Description The issue allows OS command injection via shell metacharacters in the user parameter of the "actions/authenticate.php" API endpoint.

Recommendations For KLog Server version 2.4.1, avoid using the user parameter in the "actions/authenticate.php" endpoint until the issue is resolved. Consider restricting access to this endpoint to minimize the risk of exploitation.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2020-35729

Affected Products

Klog Server

References · 12

• 🔥 https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/klog_server_authenticate_user_unauth_command_injection.rb · Exploit
• 🔥 https://github.com/mustgundogdu/Research/blob/main/KLOG_SERVER/Exploit_Code · Exploit
• 🔥 https://github.com/mustgundogdu/Research/blob/main/KLOG_SERVER/README.md · Exploit
• 🔥 https://github.com/Al1ex/CVE-2020-35729 · Exploit
• 🔥 https://exploit-db.com/exploits/49474 · Exploit
• 🔥 http://packetstormsecurity.com/files/161410/Klog-Server-2.4.1-Command-Injection.html · Exploit
• 🔥 http://packetstormsecurity.com/files/160798/Klog-Server-2.4.1-Command-Injection.html · Exploit
• 🔥 http://packetstormsecurity.com/files/161123/Klog-Server-2.4.1-Command-Injection.html · Exploit
• 🔥 https://exploit-db.com/exploits/49366 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-35729 · Security Note
• https://osv.dev/vulnerability/CVE-2020-35729 · Vendor Advisory
• https://t.me/cvenotify/7785 · Telegram Post