PT-2018-6619 · Avantfax · Avantfax

Published 2018-01-10 · Updated 2020-09-07 · CVE-2017-18024

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: AvantFAX version 3.3.3

Description: The issue allows for XSS via an arbitrary parameter name to the default URI. This can be demonstrated by a parameter whose name contains a SCRIPT element and whose value is 1. There have been reports of this issue being exploited on Endless Hosting, specifically on the https://fax.pbx.itsendless.org/ endpoint.

Recommendations: For AvantFAX version 3.3.3, as a temporary workaround, consider restricting access to arbitrary parameters in the default URI until a patch is available. Avoid using parameter names that contain SCRIPT elements in the affected API endpoint until the issue is resolved.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2017-18024

Affected Products

Avantfax

References · 4

• 🔥 http://packetstormsecurity.com/files/145776/AvantFAX-3.3.3-Cross-Site-Scripting.html · Exploit
• https://osv.dev/vulnerability/CVE-2017-18024 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-18024 · Security Note
• https://t.me/defcon_news/56459 · Telegram Post