6.5
MEDIUM
CVE-2021-35492
Wowza Streaming Engine Filesystem Exhaustion Remote Code Execution
Description

Wowza Streaming Engine through 4.8.11+5 could allow an authenticated, remote attacker to exhaust filesystem resources via the /enginemanager/server/vhost/historical.jsdata vhost parameter. This is due to the insufficient management of available filesystem resources. An attacker could exploit this vulnerability through the Virtual Host Monitoring section by requesting random virtual-host historical data and exhausting available filesystem resources. A successful exploit could allow the attacker to cause database errors and cause the device to become unresponsive to web-based management. (Manual intervention is required to free filesystem resources and return the application to an operational state.)

INFO

Published Date :

Oct. 5, 2021, 4:15 p.m.

Last Modified :

July 12, 2022, 5:42 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2021-35492 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-2021-35492 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 Wowza streaming_engine
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-2021-35492.

URL Resource
https://n4nj0.github.io/advisories/wowza-streaming-engine-i/ Third Party Advisory
https://www.gruppotim.it/redteam Exploit Third Party Advisory
https://www.wowza.com/docs/wowza-streaming-engine-4-8-14-release-notes 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).

Denial of Service tool for Wowza Streaming Engine <= 4.8.11+5 - Uncontrolled Resource Consumption (CVE-2021-35492)

Python

Updated: 3 years, 1 month ago
0 stars 1 fork 1 watcher
Born at : Oct. 6, 2021, 8:53 p.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-2021-35492 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-35492 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
  • CWE Remap by [email protected]

    Jul. 12, 2022

    Action Type Old Value New Value
    Changed CWE CWE-400 CWE-770
  • Initial Analysis by [email protected]

    Oct. 09, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://n4nj0.github.io/advisories/wowza-streaming-engine-i/ No Types Assigned https://n4nj0.github.io/advisories/wowza-streaming-engine-i/ Third Party Advisory
    Changed Reference Type https://www.gruppotim.it/redteam No Types Assigned https://www.gruppotim.it/redteam Exploit, Third Party Advisory
    Changed Reference Type https://www.wowza.com/docs/wowza-streaming-engine-4-8-14-release-notes No Types Assigned https://www.wowza.com/docs/wowza-streaming-engine-4-8-14-release-notes Release Notes, Vendor Advisory
    Added CWE NIST CWE-400
    Added CPE Configuration OR *cpe:2.3:a:wowza:streaming_engine:*:*:*:*:*:*:*:* versions up to (including) 4.8.11
  • CVE Modified by [email protected]

    Oct. 08, 2021

    Action Type Old Value New Value
    Added Reference https://n4nj0.github.io/advisories/wowza-streaming-engine-i/ [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 07, 2021

    Action Type Old Value New Value
    Added Reference https://www.wowza.com/docs/wowza-streaming-engine-4-8-14-release-notes [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-2021-35492 is associated with the following CWEs:

Exploit Prediction

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

0.40 }} 0.09%

score

0.73921

percentile

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