CVE-2019-7656

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 v3.1

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

7.2 HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C

EPSS

0.45% chance of exploitation in the next 30 days, 38th percentile

Published

2020-01-29

Updated

2024-08-04

Proof-of-concept exploits (1)

• DrunkenShells/Disclosures/tree/master/CVE-2019-7656-PrivEscal-Wowza

References

• CVE Record
• NVD entry

Related

• CVE-2019-10092
• CVE-2019-11287
• CVE-2019-12401
• CVE-2019-12409
• CVE-2019-1332
• CVE-2019-14678