PT-2020-16766 · Verve Connect · Relish Vh510

Published 2020-11-04 · Updated 2020-11-10 · CVE-2020-27690

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Relish (Verve Connect) VH510 device with firmware before 1.0.1.6L0516

Description The issue concerns a buffer overflow within the web management portal of the device. This occurs when a POST request is sent to the "/boaform/admin/formDOMAINBLK" endpoint with a large blkDomain value, causing the Boa server to crash.

Recommendations For firmware versions before 1.0.1.6L0516, update the firmware to version 1.0.1.6L0516 or later to resolve the issue. As a temporary workaround, consider restricting access to the "/boaform/admin/formDOMAINBLK" endpoint to minimize the risk of exploitation. Avoid using large values for the blkDomain variable in the affected API endpoint until the issue is resolved.

Exploit

Fix

Buffer Overflow

Weakness Enumeration

CWE-120

Related Identifiers

CVE-2020-27690

Affected Products

Relish Vh510

References · 7

• 🔥 https://6point6.co.uk/wp-content/uploads/2020/10/Relish-4G-VH510-Hub-Full-Disclosure-v1.3.pdf · Exploit
• https://osv.dev/vulnerability/CVE-2020-27690 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-27690 · Security Note
• https://t.me/cvenotify/5154 · Telegram Post
• https://t.me/cvenotify/5159 · Telegram Post
• https://t.me/cibsecurity/15851 · Telegram Post
• https://6point6.co.uk/insights/security-advisory-relish-4g-hub-vh510 · Note