Title: STVS ProVision 5.9.10 Authenticated Reflected Cross-Site Scripting
Advisory ID: ZSL-2021-5624
Type: Local/Remote
Impact: Cross-Site Scripting
Risk: (3/5)
Release Date: 26.01.2021

Summary

STVS is a Swiss company specializing in development of software for digital video recording for surveillance cameras as well as the establishment of powerful and user-friendly IP video surveillance networks.

Description

Input passed to the POST parameter 'files' is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML code in a user's browser session in context of an affected site.

Vendor

STVS SA - http://www.stvs.ch

Affected Version

5.9.10 (build 2885-3a8219a)
5.9.9 (build 2882-7c3b787)
5.9.7 (build 2871-a450938)
5.9.1 (build 2771-1bbed11)
5.9.0 (build 2701-6123026)
5.8.6 (build 2557-84726f7)
5.7
5.6
5.5

Tested On

Ubuntu 14.04.3
nginx/1.12.1
nginx/1.4.6
nginx/1.1.19
nginx/0.7.65
nginx/0.3.61

Vendor Status

[19.01.2021] Vulnerability discovered.
[19.01.2021] Vendor contacted.
[25.01.2021] No response from the vendor.
[26.01.2021] Public security advisory released.

PoC

provision_xss.txt

Credits

Vulnerability discovered by Gjoko Krstic - <gjoko@zeroscience.mk>

References

[1] https://packetstormsecurity.com/files/161158/STVS-ProVision-5.9.10-Cross-Site-Scripting.html
[2] https://cxsecurity.com/issue/WLB-2021010188
[3] https://exchange.xforce.ibmcloud.com/vulnerabilities/195723

Changelog

[26.01.2021] - Initial release
[31.01.2021] - Added reference [1], [2] and [3]

Contact

Zero Science Lab

Web: https://www.zeroscience.mk
e-mail: lab@zeroscience.mk