CVE-2021-31540

Public Exploit

Description

Wowza Streaming Engine through 4.8.5 (in a default installation) has incorrect file permissions of configuration files in the conf/ directory. A regular local user is able to read and write to all the configuration files, e.g., modify the application server configuration.

Category

7.1
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.03%
Vendor Advisory wowza.com Vendor Advisory wowza.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.wowza.com/products/streaming-engine vendor advisory
https://www.gruppotim.it/redteam third party advisory exploit
https://www.wowza.com/docs/wowza-streaming-engine-4-8-12-release-notes release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-31540?
CVE-2021-31540 has been scored as a high severity vulnerability.
How to fix CVE-2021-31540?
To fix CVE-2021-31540, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-31540 being actively exploited in the wild?
It is possible that CVE-2021-31540 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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