5.4
MEDIUM
CVE-2021-35478
Nagios Log Server Reflected Cross-Site Scripting
Description

Nagios Log Server before 2.1.9 contains Reflected XSS in the dropdown box for the alert history and audit log function. All parameters used for filtering are affected. This affects users who open a crafted link or third-party web page.

INFO

Published Date :

July 30, 2021, 2:15 p.m.

Last Modified :

Feb. 10, 2022, 5:05 p.m.

Remotely Exploitable :

Yes !

Impact Score :

2.7

Exploitability Score :

2.3
Public PoC/Exploit Available at Github

CVE-2021-35478 has a 1 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-2021-35478 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 Nagios log_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-2021-35478.

URL Resource
https://research.nccgroup.com/2021/07/22/technical-advisory-stored-and-reflected-xss-vulnerability-in-nagios-log-server-cve-2021-35478cve-2021-35479/ Exploit Third Party Advisory
https://research.nccgroup.com/?research=Technical%20advisories Third Party Advisory
https://www.nagios.com/downloads/nagios-log-server/change-log/ Release Notes Vendor 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).

Automatic monitor github cve using Github Actions

Python

Updated: 2 months ago
1 stars 56 fork 56 watcher
Born at : April 7, 2021, 11:16 a.m. This repo has been linked 1007 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-2021-35478 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-35478 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 [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Feb. 10, 2022

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:naigos:nagios_log_server:*:*:*:*:*:*:*:* versions up to (excluding) 2.1.9 OR *cpe:2.3:a:nagios:log_server:*:*:*:*:*:*:*:* versions up to (excluding) 2.1.9
  • Initial Analysis by [email protected]

    Aug. 06, 2021

    Action Type Old Value New Value
    Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism
    Added CVSS V2 NIST (AV:N/AC:M/Au:S/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type https://research.nccgroup.com/?research=Technical%20advisories No Types Assigned https://research.nccgroup.com/?research=Technical%20advisories Third Party Advisory
    Changed Reference Type https://research.nccgroup.com/2021/07/22/technical-advisory-stored-and-reflected-xss-vulnerability-in-nagios-log-server-cve-2021-35478cve-2021-35479/ No Types Assigned https://research.nccgroup.com/2021/07/22/technical-advisory-stored-and-reflected-xss-vulnerability-in-nagios-log-server-cve-2021-35478cve-2021-35479/ Exploit, Third Party Advisory
    Changed Reference Type https://www.nagios.com/downloads/nagios-log-server/change-log/ No Types Assigned https://www.nagios.com/downloads/nagios-log-server/change-log/ Release Notes, Vendor Advisory
    Added CWE NIST CWE-79
    Added CPE Configuration OR *cpe:2.3:a:naigos:nagios_log_server:*:*:*:*:*:*:*:* versions up to (excluding) 2.1.9
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-2021-35478 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-35478 weaknesses.

Exploit Prediction

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

0.67 }} -0.08%

score

0.79739

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability