PT-2021-20057 · Unknown · Klog Server

Published 2021-01-26 · Updated 2021-02-01 · CVE-2021-3317

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions KLog Server versions 2.4.1 and earlier

Description The issue allows authenticated command injection. This is because async.php calls shell exec() on the original value of the source parameter.

Recommendations For versions 2.4.1 and earlier, consider disabling the shell exec() function call in async.php until a patch is available. Restrict access to async.php to minimize the risk of exploitation. Avoid using the source parameter in the affected API endpoint until the issue is resolved.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2021-3317

Affected Products

Klog Server

References · 8

• 🔥 https://github.com/Al1ex/CVE-2021-3317 · Exploit
• 🔥 https://exploit-db.com/exploits/49511 · Exploit
• 🔥 https://docs.unsafe-inline.com/0day/klog-server-authenticated-command-injection · Exploit
• 🔥 http://packetstormsecurity.com/files/161208/Klog-Server-2.4.1-Command-Injection.html · Exploit
• https://osv.dev/vulnerability/CVE-2021-3317 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-3317 · Security Note
• https://t.me/cibsecurity/22693 · Telegram Post
• https://t.me/cvenotify/8990 · Telegram Post