CVE intelligence and bounded remediation

CVE-2024-7155 — A vulnerability has been found in TOTOLINK A3300R 17.0.0cu.557_B20221024 and classified as problematic

Medium CVSS 4.7

A vulnerability has been found in TOTOLINK A3300R 17.0.0cu.557_B20221024 and classified as problematic. Affected by this vulnerability is an unknown functionality of the file /etc/shadow.sample. The manipulation leads to use of hard-coded password. It is possible to launch the attack on the local host. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The identifier VDB-272569 was assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Severity
Medium
CVSS
4.7 (3.1)
Published
2024-07-28
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-259, CWE-798

Affected products

  • totolink / a3300r_firmware / 17.0.0cu.557_b20221024

Matched remediation archetype

Authentication bypass and missing authentication

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
  • Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
  • Review session, token, credential, and proxy trust configuration without attempting account takeover.

Remediate safely

  • Apply the supported fix and centralize fail-closed authentication before protected request handling.
  • Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
  • Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.

Authoritative sources

Complete CVE record and remediation plan

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