PT-2020-17405 · Belkin · Linksys Ea6500

Re-Solver · Published 2020-12-26 · Updated 2020-12-28 · CVE-2020-35716

Positive Technologies (AI Summary)

CVSS v2.0

7.8

High

Base vector

AV:N/AC:L/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Belkin LINKSYS RE6500 versions prior to 1.0.012.001

Description The issue allows remote attackers to cause a persistent denial of service, resulting in a segmentation fault. This can be achieved by sending a long langSelectionOnly parameter via the "/goform/langSwitch" API endpoint.

Recommendations For versions prior to 1.0.012.001, update to version 1.0.012.001 or later to resolve the issue. As a temporary workaround, consider restricting access to the "/goform/langSwitch" API endpoint to minimize the risk of exploitation. Avoid using the langSelectionOnly parameter in the affected API endpoint until the issue is resolved.

Exploit

Fix

Related Identifiers

CVE-2020-35716

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://osv.dev/vulnerability/CVE-2020-35716 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-35716 · Security Note
• https://t.me/cvenotify/7838 · Telegram Post
• https://bugcrowd.com/disclosures/72d7246b-f77f-4f7f-9bd1-fdc35663cc92/linksys-re6500-unauthenticated-rce-working-across-multiple-fw-versions · Note
• https://t.me/cvenotify/7745 · Telegram Post
• https://t.me/cibsecurity/21307 · Telegram Post