CVE-2019-6569 — The monitor barrier of the affected products insufficiently blocks data from bei

The monitor barrier of the affected products insufficiently blocks data from being forwarded over the mirror port into the mirrored network. An attacker could use this behavior to transmit malicious packets to systems in the mirrored network, possibly influencing their configurat

01What is this vulnerability?

The monitor barrier of the affected products insufficiently blocks data from being forwarded over the mirror port into the mirrored network. An attacker could use this behavior to transmit malicious packets to systems in the mirrored network, possibly influencing their configuration and runtime behavior.

02Affected products

Vendor	Product	Versions
Siemens	SCALANCE X204	2 — All versions < V5.2.6
Siemens	SCALANCE X204	2FM — All versions < V5.2.6
Siemens	SCALANCE X204	2LD — All versions < V5.2.6
Siemens	SCALANCE X204	2LD TS — All versions < V5.2.6
Siemens	SCALANCE X204	2TS — All versions < V5.2.6
Siemens	SCALANCE X206	1 — All versions < V5.2.6
Siemens	SCALANCE X206	1LD — All versions < V5.2.6
Siemens	SCALANCE X208	All versions < V5.2.6
Siemens	SCALANCE X208PRO	All versions < V5.2.6
Siemens	SCALANCE X212	2 — All versions < V5.2.6
Siemens	SCALANCE X212	2LD — All versions < V5.2.6
Siemens	SCALANCE X216	All versions < V5.2.6
Siemens	SCALANCE X224	All versions < V5.2.6
Siemens	SCALANCE X302	7 EEC (230V) — All versions < V4.1.3
Siemens	SCALANCE X302	7 EEC (230V, coated) — All versions < V4.1.3
Siemens	SCALANCE X302	7 EEC (24V) — All versions < V4.1.3
Siemens	SCALANCE X302	7 EEC (24V, coated) — All versions < V4.1.3
Siemens	SCALANCE X302	7 EEC (2x 230V) — All versions < V4.1.3
Siemens	SCALANCE X302	7 EEC (2x 230V, coated) — All versions < V4.1.3
Siemens	SCALANCE X302	7 EEC (2x 24V) — All versions < V4.1.3
Siemens	SCALANCE X302	7 EEC (2x 24V, coated) — All versions < V4.1.3
Siemens	SCALANCE X304	2FE — All versions < V4.1.3
Siemens	SCALANCE X306	1LD FE — All versions < V4.1.3
Siemens	SCALANCE X307	2 EEC (230V) — All versions < V4.1.3
Siemens	SCALANCE X307	2 EEC (230V, coated) — All versions < V4.1.3
Siemens	SCALANCE X307	2 EEC (24V) — All versions < V4.1.3
Siemens	SCALANCE X307	2 EEC (24V, coated) — All versions < V4.1.3
Siemens	SCALANCE X307	2 EEC (2x 230V) — All versions < V4.1.3
Siemens	SCALANCE X307	2 EEC (2x 230V, coated) — All versions < V4.1.3
Siemens	SCALANCE X307	2 EEC (2x 24V) — All versions < V4.1.3
Siemens	SCALANCE X307	2 EEC (2x 24V, coated) — All versions < V4.1.3
Siemens	SCALANCE X307	3 — All versions < V4.1.3
Siemens	SCALANCE X307	3 — All versions < V4.1.3
Siemens	SCALANCE X307	3LD — All versions < V4.1.3
Siemens	SCALANCE X307	3LD — All versions < V4.1.3
Siemens	SCALANCE X308	2 — All versions < V4.1.3
Siemens	SCALANCE X308	2 — All versions < V4.1.3
Siemens	SCALANCE X308	2LD — All versions < V4.1.3
Siemens	SCALANCE X308	2LD — All versions < V4.1.3
Siemens	SCALANCE X308	2LH — All versions < V4.1.3
Siemens	SCALANCE X308	2LH — All versions < V4.1.3
Siemens	SCALANCE X308	2LH+ — All versions < V4.1.3
Siemens	SCALANCE X308	2LH+ — All versions < V4.1.3
Siemens	SCALANCE X308	2M — All versions < V4.1.3
Siemens	SCALANCE X308	2M — All versions < V4.1.3
Siemens	SCALANCE X308	2M PoE — All versions < V4.1.3
Siemens	SCALANCE X308	2M PoE — All versions < V4.1.3
Siemens	SCALANCE X308	2M TS — All versions < V4.1.3
Siemens	SCALANCE X308	2M TS — All versions < V4.1.3
Siemens	SCALANCE X310	All versions < V4.1.3

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-03-26T21:12:43.000Z
• Last modified: 2024-08-04T20:23:22.201Z

09References

• cert-portal.siemens.com — https://cert-portal.siemens.com/productcert/pdf/ssa-557804.pdf