PT-2020-10164 · Wowza · Wowza Streaming Engine

Published 2020-08-03 · Updated 2022-04-28 · CVE-2019-19455

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Wowza Streaming Engine versions prior to 4.8.5

Description The issue concerns insecure permissions in the Linux version of the server, potentially allowing a local attacker to escalate privileges by writing arbitrary commands in any file and executing them as root. This was resolved in version 4.8.5.

Recommendations For versions prior to 4.8.5, update to version 4.8.5 to resolve the issue. As a temporary workaround, consider restricting access to the /usr/local/WowzaStreamingEngine/manager/bin/ directory to prevent arbitrary command execution.

Fix

Incorrect Permission

Weakness Enumeration

CWE-732

Related Identifiers

CVE-2019-19455

Affected Products

Wowza Streaming Engine

References · 6

• https://osv.dev/vulnerability/CVE-2019-19455 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-19455 · Security Note
• https://wowza.com/docs/wowza-streaming-engine-4-8-5-release-notes · Vendor Advisory
• https://t.me/cibsecurity/13829 · Telegram Post
• https://gruppotim.it/redteam · Note
• https://raw.githubusercontent.com/WowzaMediaSystems/public_cve/main/wowza-streaming-engine/CVE-2019-19455.txt · Note