PT-2019-10748 · Feingeist · Shimo Vpn

Published 2019-04-15 · Updated 2023-02-02 · CVE-2018-4008

Positive Technologies (AI Summary)

CVSS v3.1

9.3

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Shimo VPN version 4.1.5.1

Description A privilege escalation issue exists in the Shimo VPN helper service, specifically in the RunVpncScript command. This command executes a user-supplied script argument under root context, allowing a user with local access to raise their privileges to root. An attacker would need local access to the machine to successfully exploit this issue.

Recommendations For Shimo VPN version 4.1.5.1, consider disabling the RunVpncScript command until a patch is available to prevent exploitation. Restrict access to the helper service to minimize the risk of privilege escalation. Avoid using the script argument in the RunVpncScript command until the issue is resolved.

Exploit

Fix

Improper Privilege Management

Weakness Enumeration

CWE-269

Related Identifiers

CVE-2018-4008

Affected Products

Shimo Vpn

References · 4

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2018-0677 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2018-4008 · Security Note
• https://osv.dev/vulnerability/CVE-2018-4008 · Vendor Advisory
• https://t.me/cvenotify/43399 · Telegram Post