CVE-2019-7656
Wowza Streaming Engine Root Privilege Escalation Vulnerability
Description
A privilege escalation vulnerability in Wowza Streaming Engine 4.8.0 and earlier allows any unprivileged Linux user to escalate privileges to root. The installer sets too relaxed permissions on /usr/local/WowzaStreamingEngine/bin/* core program files. By injecting a payload into one of those files, it will run with the same privileges as the Wowza server, root. For example, /usr/local/WowzaStreamingEngine/bin/tune.sh could be replaced with a Trojan horse. This issue was resolved in Wowza Streaming Engine 4.8.5.
INFO
Published Date :
Jan. 29, 2020, 4:15 p.m.
Last Modified :
May 3, 2022, 2:29 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
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-2019-7656.
| URL | Resource |
|---|---|
| https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-7656-PrivEscal-Wowza | Exploit Third Party Advisory |
| https://raw.githubusercontent.com/WowzaMediaSystems/public_cve/main/wowza-streaming-engine/CVE-2019-7656.txt | Third Party Advisory |
| https://www.wowza.com/docs/wowza-streaming-engine-4-8-5-release-notes | Release Notes Vendor Advisory |
| https://www.wowza.com/pricing/installer | 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2019-7656 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2019-7656 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 -
Modified Analysis by [email protected]
May. 03, 2022
Action Type Old Value New Value Changed Reference Type https://raw.githubusercontent.com/WowzaMediaSystems/public_cve/main/wowza-streaming-engine/CVE-2019-7656.txt No Types Assigned https://raw.githubusercontent.com/WowzaMediaSystems/public_cve/main/wowza-streaming-engine/CVE-2019-7656.txt Third Party Advisory Changed Reference Type https://www.wowza.com/docs/wowza-streaming-engine-4-8-5-release-notes No Types Assigned https://www.wowza.com/docs/wowza-streaming-engine-4-8-5-release-notes Release Notes, Vendor Advisory Changed CPE Configuration OR *cpe:2.3:a:wowza:streaming_engine:4.7.7:*:*:*:*:*:*:* *cpe:2.3:a:wowza:streaming_engine:4.7.8:*:*:*:*:*:*:* OR *cpe:2.3:a:wowza:streaming_engine:*:*:*:*:*:*:*:* versions up to (including) 4.8.0 -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-276 CWE-732 -
CVE Modified by [email protected]
Sep. 30, 2020
Action Type Old Value New Value Removed Reference https://raw.githubusercontent.com/WowzaMediaSystems/public_cve/master/wowza-streaming-engine/CVE-2019-7656.txt [No Types Assigned] -
CVE Modified by [email protected]
Sep. 18, 2020
Action Type Old Value New Value Added Reference https://raw.githubusercontent.com/WowzaMediaSystems/public_cve/main/wowza-streaming-engine/CVE-2019-7656.txt [No Types Assigned] -
CVE Modified by [email protected]
Jun. 18, 2020
Action Type Old Value New Value Changed Description A privilege escalation vulnerability in Wowza Streaming Engine 4.7.7 and 4.7.8 allows any unprivileged Linux user to escalate privileges to root. The installer sets too relaxed permissions on /usr/local/WowzaStreamingEngine/bin/* core program files. By injecting a payload into one of those files, it will run with the same privileges as the Wowza server, root. For example, /usr/local/WowzaStreamingEngine/bin/tune.sh could be replaced with a Trojan horse. A privilege escalation vulnerability in Wowza Streaming Engine 4.8.0 and earlier allows any unprivileged Linux user to escalate privileges to root. The installer sets too relaxed permissions on /usr/local/WowzaStreamingEngine/bin/* core program files. By injecting a payload into one of those files, it will run with the same privileges as the Wowza server, root. For example, /usr/local/WowzaStreamingEngine/bin/tune.sh could be replaced with a Trojan horse. This issue was resolved in Wowza Streaming Engine 4.8.5. Added Reference https://raw.githubusercontent.com/WowzaMediaSystems/public_cve/master/wowza-streaming-engine/CVE-2019-7656.txt [No Types Assigned] Added Reference https://www.wowza.com/docs/wowza-streaming-engine-4-8-5-release-notes [No Types Assigned] -
Initial Analysis by [email protected]
Feb. 03, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-7656-PrivEscal-Wowza No Types Assigned https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-7656-PrivEscal-Wowza Exploit, Third Party Advisory Changed Reference Type https://www.wowza.com/pricing/installer No Types Assigned https://www.wowza.com/pricing/installer Vendor Advisory Added CWE NIST CWE-276 Added CPE Configuration OR *cpe:2.3:a:wowza:streaming_engine:4.7.7:*:*:*:*:*:*:* *cpe:2.3:a:wowza:streaming_engine:4.7.8:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2019-7656 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-2019-7656
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} 0.00%
score
0.32603
percentile