PT-2020-17403 · Belkin · Linksys Ea6500

Re-Solver · Published 2020-12-26 · Updated 2021-07-21 · CVE-2020-35714

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Belkin LINKSYS RE6500 versions prior to 1.0.11.001

Description The issue allows remote authenticated users to execute arbitrary commands via the "goform/systemCommand?command=" endpoint in conjunction with the "goform/pingstart" program. This can be exploited by sending a malicious request to the "/goform/systemCommand?command=" endpoint.

Recommendations For versions prior to 1.0.11.001, update to version 1.0.11.001 or later to resolve the issue. As a temporary workaround, consider restricting access to the "goform/systemCommand" endpoint and the "goform/pingstart" program until a patch is applied. Avoid using the command variable in the affected API endpoint until the issue is resolved.

Exploit

Fix

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2020-35714

Affected Products

Linksys Ea6500

References · 8

• 🔥 https://resolverblog.blogspot.com/2020/07/linksys-re6500-unauthenticated-rce-full.html · Exploit
• https://downloads.linksys.com/support/assets/releasenotes/ExternalReleaseNotes_RE6500_1.0.012.001.txt · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-35714 · Security Note
• https://osv.dev/vulnerability/CVE-2020-35714 · Vendor Advisory
• https://t.me/cvenotify/7744 · Telegram Post
• https://bugcrowd.com/disclosures/72d7246b-f77f-4f7f-9bd1-fdc35663cc92/linksys-re6500-unauthenticated-rce-working-across-multiple-fw-versions · Note
• https://t.me/cibsecurity/21312 · Telegram Post
• https://t.me/cvenotify/7837 · Telegram Post