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CVE-2019-7656

Published: Jan 29, 2020Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-732
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.5%
Top 64.3%
CISA KEV
Not in KEV
Exploits
2 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-732

Affected Products

streaming enginewowza
On-prem
Communications / video-conferencing
Wowza Streaming EngineWowza Media Systems
On-prem
Communications / video-conferencing
n/an/a
wowzacommercialCommunicationsaka wowza streaming engine
wowza media systemscommercialCommunicationsaka wowza streaming engine, wowza

Attack Graph

Products CVE Techniques Tactics

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Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-7656-PrivEscal-Wowza
github.com
https://raw.githubusercontent.com/WowzaMediaSystems/public_cve/main/wowza-streaming-engine/CVE-2019-7656.txt
raw.githubusercontent.com
https://www.wowza.com/docs/wowza-streaming-engine-4-8-5-release-notes
wowza.com
and 3 more references View all →

Timeline

Published
Jan 29, 2020
Last Updated
Nov 21, 2024

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