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Vulnerability CVE-2019-7656
Published: 2020-01-29
| 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. |
Type:
CWE-276 (Incorrect Default Permissions)
CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)
| CVSS Base Score |
Impact Subscore |
Exploitability Subscore |
7.2/10 |
10/10 |
3.9/10 |
| Exploit range |
Attack complexity |
Authentication |
Local |
Low |
No required |
| Confidentiality impact |
Integrity impact |
Availability impact |
Complete |
Complete |
Complete |
References: |
https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-7656-PrivEscal-Wowza
https://www.wowza.com/pricing/installer
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