-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 # SSA-443566: Authentication Bypass in SCALANCE X Switches Families Publication Date: 2020-01-14 Last Update: 2022-12-13 Current Version: 1.3 CVSS v3.1 Base Score: 8.8 SUMMARY ======= Several SCALANCE X switches are affected by an Authentication Bypass vulnerability. The vulnerability allows an unauthenticated attacker to violate access-control rules. The vulnerability can be exploited by sending a GET request to a specific uniform resource locator on the web configuration interface of the device. The security vulnerability could be exploited by an attacker with network access to the affected systems. An attacker could use the vulnerability to obtain sensitive information or change the device configuration. Siemens has released updates for the affected products and recommends to update to the latest versions. AFFECTED PRODUCTS AND SOLUTION ============================== * SCALANCE X204RNA (HSR) (6GK5204-0BA00-2MB2) - Affected versions: All versions < V3.2.7 - Remediation: Update to V3.2.7 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109814809/ * SCALANCE X204RNA (PRP) (6GK5204-0BA00-2KB2) - Affected versions: All versions < V3.2.7 - Remediation: Update to V3.2.7 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109814809/ * SCALANCE X204RNA EEC (HSR) (6GK5204-0BS00-2NA3) - Affected versions: All versions < V3.2.7 - Remediation: Update to V3.2.7 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109814809/ * SCALANCE X204RNA EEC (PRP) (6GK5204-0BS00-3LA3) - Affected versions: All versions < V3.2.7 - Remediation: Update to V3.2.7 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109814809/ * SCALANCE X204RNA EEC (PRP/HSR) (6GK5204-0BS00-3PA3) - Affected versions: All versions < V3.2.7 - Remediation: Update to V3.2.7 or later version See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/ww/en/view/109814809/ * SCALANCE X302-7 EEC (2x 24V) (6GK5302-7GD00-2EA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X302-7 EEC (2x 24V, coated) (6GK5302-7GD00-2GA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X302-7 EEC (2x 230V) (6GK5302-7GD00-4EA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X302-7 EEC (2x 230V, coated) (6GK5302-7GD00-4GA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X302-7 EEC (24V) (6GK5302-7GD00-1EA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X302-7 EEC (24V, coated) (6GK5302-7GD00-1GA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X302-7 EEC (230V) (6GK5302-7GD00-3EA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X302-7 EEC (230V, coated) (6GK5302-7GD00-3GA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X304-2FE (6GK5304-2BD00-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X306-1LD FE (6GK5306-1BF00-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X307-2 EEC (2x 24V) (6GK5307-2FD00-2EA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X307-2 EEC (2x 24V, coated) (6GK5307-2FD00-2GA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X307-2 EEC (2x 230V) (6GK5307-2FD00-4EA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X307-2 EEC (2x 230V, coated) (6GK5307-2FD00-4GA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X307-2 EEC (24V) (6GK5307-2FD00-1EA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X307-2 EEC (24V, coated) (6GK5307-2FD00-1GA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X307-2 EEC (230V) (6GK5307-2FD00-3EA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X307-2 EEC (230V, coated) (6GK5307-2FD00-3GA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X307-3 (6GK5307-3BL00-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X307-3 (6GK5307-3BL10-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X307-3LD (6GK5307-3BM00-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X307-3LD (6GK5307-3BM10-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X308-2 (6GK5308-2FL00-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X308-2 (6GK5308-2FL10-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X308-2LD (6GK5308-2FM00-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X308-2LD (6GK5308-2FM10-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X308-2LH (6GK5308-2FN00-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X308-2LH (6GK5308-2FN10-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X308-2LH+ (6GK5308-2FP00-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X308-2LH+ (6GK5308-2FP10-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X308-2M (6GK5308-2GG00-2AA2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X308-2M (6GK5308-2GG10-2AA2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X308-2M PoE (6GK5308-2QG00-2AA2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X308-2M PoE (6GK5308-2QG10-2AA2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X308-2M TS (6GK5308-2GG00-2CA2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X308-2M TS (6GK5308-2GG10-2CA2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X310 (6GK5310-0FA00-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X310 (6GK5310-0FA10-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X310FE (6GK5310-0BA00-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X310FE (6GK5310-0BA10-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X320-1 FE (6GK5320-1BD00-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X320-1-2LD FE (6GK5320-3BF00-2AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE X408-2 (6GK5408-2FD00-2AA2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (2x 24V, ports on front) (6GK5324-4GG00-2ER2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (2x 24V, ports on front) (6GK5324-4GG10-2ER2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (2x 24V, ports on rear) (6GK5324-4GG00-2JR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (2x 24V, ports on rear) (6GK5324-4GG10-2JR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (2x 100-240VAC/60-250VDC, ports on front) (6GK5324-4GG00-4ER2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (2x 100-240VAC/60-250VDC, ports on front) (6GK5324-4GG10-4ER2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (2x 100-240VAC/60-250VDC, ports on rear) (6GK5324-4GG00-4JR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (2x 100-240VAC/60-250VDC, ports on rear) (6GK5324-4GG10-4JR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (24V, ports on front) (6GK5324-4GG00-1ER2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (24V, ports on front) (6GK5324-4GG10-1ER2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (24V, ports on rear) (6GK5324-4GG00-1JR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (24V, ports on rear) (6GK5324-4GG10-1JR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (100-240VAC/60-250VDC, ports on front) (6GK5324-4GG00-3ER2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (100-240VAC/60-250VDC, ports on front) (6GK5324-4GG10-3ER2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (100-240VAC/60-250VDC, ports on rear) (6GK5324-4GG00-3JR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M EEC (100-240VAC/60-250VDC, ports on rear) (6GK5324-4GG10-3JR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M PoE (24V, ports on front) (6GK5324-4QG00-1AR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M PoE (24V, ports on rear) (6GK5324-4QG00-1HR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M PoE (230V, ports on front) (6GK5324-4QG00-3AR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M PoE (230V, ports on rear) (6GK5324-4QG00-3HR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-4M PoE TS (24V, ports on front) (6GK5324-4QG00-1CR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-12M (24V, ports on front) (6GK5324-0GG00-1AR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-12M (24V, ports on front) (6GK5324-0GG10-1AR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-12M (24V, ports on rear) (6GK5324-0GG00-1HR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-12M (24V, ports on rear) (6GK5324-0GG10-1HR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-12M (230V, ports on front) (6GK5324-0GG00-3AR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-12M (230V, ports on front) (6GK5324-0GG10-3AR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-12M (230V, ports on rear) (6GK5324-0GG00-3HR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-12M (230V, ports on rear) (6GK5324-0GG10-3HR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-12M TS (24V) (6GK5324-0GG00-1CR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SCALANCE XR324-12M TS (24V) (6GK5324-0GG10-1CR2) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ * SIPLUS NET SCALANCE X308-2 (6AG1308-2FL10-4AA3) - Affected versions: All versions < V4.1.3 - Remediation: Update to V4.1.3 See further recommendations from section "Workarounds and Mitigations" - Download: https://support.industry.siemens.com/cs/document/109773547/ WORKAROUNDS AND MITIGATIONS =========================== Siemens has identified the following specific workarounds and mitigations that customers can apply to reduce the risk: * Configure ACLs to only allow Web-based management from trusted IP Adresses * Disable web-based management (WBM) and use SSH to configure the device Product-specific remediations or mitigations can be found in the section "Affected Products and Solution". Please follow the "General Security Recommendations". GENERAL SECURITY RECOMMENDATIONS ================================ As a general security measure, Siemens strongly recommends to protect network access to devices with appropriate mechanisms. In order to operate the devices in a protected IT environment, Siemens recommends to configure the environment according to Siemens' operational guidelines for Industrial Security (Download: https://www.siemens.com/cert/operational-guidelines-industrial- security), and to follow the recommendations in the product manuals. Additional information on Industrial Security by Siemens can be found at: https://www.siemens.com/industrialsecurity PRODUCT DESCRIPTION =================== SCALANCE X switches are used to connect industrial components like Programmable Logic Controllers (PLCs) or Human Machine Interfaces (HMIs). SIPLUS extreme products are designed for reliable operation under extreme conditions and are based on SIMATIC, LOGO!, SITOP, SINAMICS, SIMOTION, SCALANCE or other devices. SIPLUS devices use the same firmware as the product they are based on. VULNERABILITY CLASSIFICATION ============================ The vulnerability classification has been performed by using the CVSS scoring system in version 3.1 (CVSS v3.1) (https://www.first.org/cvss/). The CVSS environmental score is specific to the customer's environment and will impact the overall CVSS score. The environmental score should therefore be individually defined by the customer to accomplish final scoring. An additional classification has been performed using the CWE classification, a community-developed list of common software security weaknesses. This serves as a common language and as a baseline for weakness identification, mitigation, and prevention efforts. A detailed list of CWE classes can be found at: https://cwe.mitre.org/. * Vulnerability CVE-2019-13933 Affected devices contain a vulnerability that allows an unauthenticated attacker to violate access-control rules. The vulnerability can be triggered by sending GET request to specific uniform resource locator on the web configuration interface of the device. The security vulnerability could be exploited by an attacker with network access to the affected systems. An attacker could use the vulnerability to obtain sensitive information or change the device configuration. At the time of advisory publication no public exploitation of this security vulnerability was known. CVSS v3.1 Base Score: 8.8 CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L/E:P/RL:O/RC:C CWE: CWE-306: Missing Authentication for Critical Function ACKNOWLEDGMENTS =============== Siemens thanks the following party for its efforts: * Maxim Rupp for coordinated disclosure ADDITIONAL INFORMATION ====================== For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories HISTORY DATA ============ V1.0 (2020-01-14): Publication Date V1.1 (2022-02-08): Specifically added that SCALANCE X204RNA devices do not have any fix planned V1.2 (2022-06-14): Fix planned for SCALANCE X204RNA devices. Expanded SCALANCE X-300 switch family list V1.3 (2022-12-13): Added fix for SCALANCE X-200RNA devices TERMS OF USE ============ Siemens Security Advisories are subject to the terms and conditions contained in Siemens' underlying license terms or other applicable agreements previously agreed to with Siemens (hereinafter "License Terms"). To the extent applicable to information, software or documentation made available in or through a Siemens Security Advisory, the Terms of Use of Siemens' Global Website (https://www.siemens.com/terms_of_use, hereinafter "Terms of Use"), in particular Sections 8-10 of the Terms of Use, shall apply additionally. In case of conflicts, the License Terms shall prevail over the Terms of Use. 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