PT-2019-8655 · Vera · Veraedge+1

Published 2019-06-17 · Updated 2019-06-21 · CVE-2017-9386

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Vera VeraEdge version 1.7.19 Vera Veralite version 1.7.481

Description An issue was discovered on Vera devices, where a script file called "get file.sh" allows a user to retrieve any file stored in the "cmh-ext" folder. However, the filename parameter is not validated correctly, allowing an attacker to directory traverse outside the /cmh-ext folder and read any file on the device. To exploit this, an attacker must first create the "cmh-ext" folder on the device in an unauthenticated fashion, and then execute a directory traversal attack.

Recommendations For Vera VeraEdge version 1.7.19, consider disabling the "get file.sh" script until a patch is available. For Vera Veralite version 1.7.481, restrict access to the "cmh-ext" folder to minimize the risk of exploitation. As a temporary workaround, avoid using the filename parameter in the affected script until the issue is resolved.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2017-9386

Affected Products

Veraedge

Veralite

References · 6

• 🔥 https://github.com/ethanhunnt/IoT_vulnerabilities/blob/master/Vera_sec_issues.pdf · Exploit
• https://osv.dev/vulnerability/CVE-2017-9386 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-9386 · Security Note
• https://seclists.org/bugtraq/2019/Jun/8 · Note
• http://packetstormsecurity.com/files/153242/Veralite-Veraedge-Router-XSS-Command-Injection-CSRF-Traversal.html · Note
• https://t.me/cibsecurity/4961 · Telegram Post