CVE intelligence and bounded remediation

CVE-2022-29878 — A vulnerability has been identified in SICAM T (All versions < V3.0)

High CVSS 8.1

A vulnerability has been identified in SICAM T (All versions < V3.0). Affected devices use a limited range for challenges that are sent during the unencrypted challenge-response communication. An unauthenticated attacker could capture a valid challenge-response pair generated by a legitimate user, and request the webpage repeatedly to wait for the same challenge to reappear for which the correct response is known. This could allow the attacker to access the management interface of the device.

Severity
High
CVSS
8.1 (3.1)
Published
2022-05-20
CISA KEV
Not currently listed
Ecosystem
operating-system
Weaknesses
CWE-294

Affected products

  • siemens / 7kg8500-0aa00-0aa0_firmware
  • siemens / 7kg8500-0aa00-2aa0_firmware
  • siemens / 7kg8500-0aa10-0aa0_firmware
  • siemens / 7kg8500-0aa10-2aa0_firmware
  • siemens / 7kg8500-0aa30-0aa0_firmware
  • siemens / 7kg8500-0aa30-2aa0_firmware

Showing 6 representative product identities from 36 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Authentication bypass and missing authentication

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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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