Description

KLog Server through 2.4.1 allows authenticated command injection. async.php calls shell_exec() on the original value of the source parameter.

INFO

Published Date :

Jan. 26, 2021, 11:15 p.m.

Last Modified :

Nov. 21, 2024, 6:21 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2021-3317 has a 8 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-3317 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Klogserver klog_server
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-3317.

URL Resource
http://packetstormsecurity.com/files/161208/Klog-Server-2.4.1-Command-Injection.html Exploit Third Party Advisory
https://docs.unsafe-inline.com/0day/klog-server-authenticated-command-injection Exploit Third Party Advisory
http://packetstormsecurity.com/files/161208/Klog-Server-2.4.1-Command-Injection.html Exploit Third Party Advisory
https://docs.unsafe-inline.com/0day/klog-server-authenticated-command-injection Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

All CVE - PoC in GitHub

poc proofofconcept tester allcve cvegithub cvenew cvepoc cveupdate

Updated: 1 week, 2 days ago
11 stars 3 fork 3 watcher
Born at : March 22, 2024, 3:58 p.m. This repo has been linked 931 different CVEs too.

None

Updated: 1 year, 1 month ago
1 stars 0 fork 0 watcher
Born at : March 11, 2024, 1:21 p.m. This repo has been linked 935 different CVEs too.

None

Updated: 2 years, 1 month ago
0 stars 2 fork 2 watcher
Born at : April 8, 2023, 6:19 a.m. This repo has been linked 928 different CVEs too.

None

Updated: 1 year, 2 months ago
20 stars 3 fork 3 watcher
Born at : Feb. 14, 2023, 6:10 p.m. This repo has been linked 921 different CVEs too.

None

Updated: 1 year, 2 months ago
2 stars 2 fork 2 watcher
Born at : Nov. 25, 2022, 5:43 p.m. This repo has been linked 935 different CVEs too.

None

Updated: 2 weeks, 5 days ago
39 stars 9 fork 9 watcher
Born at : July 28, 2022, 3:22 a.m. This repo has been linked 149 different CVEs too.

None

Updated: 4 weeks, 2 days ago
9 stars 1 fork 1 watcher
Born at : June 21, 2022, 7:45 a.m. This repo has been linked 944 different CVEs too.

CVE-2021-3317

cve-2021-3317 exploit klogserver

Python

Updated: 8 months, 2 weeks ago
2 stars 1 fork 1 watcher
Born at : April 9, 2021, 7:36 a.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-3317 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-3317 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/161208/Klog-Server-2.4.1-Command-Injection.html
    Added Reference https://docs.unsafe-inline.com/0day/klog-server-authenticated-command-injection
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Jun. 28, 2022

    Action Type Old Value New Value
    Changed CWE CWE-77 CWE-78
  • Initial Analysis by [email protected]

    Feb. 01, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://packetstormsecurity.com/files/161208/Klog-Server-2.4.1-Command-Injection.html No Types Assigned http://packetstormsecurity.com/files/161208/Klog-Server-2.4.1-Command-Injection.html Exploit, Third Party Advisory
    Changed Reference Type https://docs.unsafe-inline.com/0day/klog-server-authenticated-command-injection No Types Assigned https://docs.unsafe-inline.com/0day/klog-server-authenticated-command-injection Exploit, Third Party Advisory
    Added CWE NIST CWE-77
    Added CPE Configuration OR *cpe:2.3:a:klogserver:klog_server:*:*:*:*:*:*:*:* versions up to (including) 2.4.1
  • CVE Modified by [email protected]

    Feb. 01, 2021

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/161208/Klog-Server-2.4.1-Command-Injection.html [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-3317 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

21.20 }} -5.04%

score

0.95188

percentile

CVSS31 - Vulnerability Scoring System
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Latest DB Update: Apr. 30, 2025 22:19