What’s Vulnerable › Vulnerabilities

CVE-2019-13924

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-02-11 · updated 2026-06-17
• Weakness: CWE-693

Description

A vulnerability has been identified in SCALANCE S602 (All versions < V4.1), SCALANCE S612 (All versions < V4.1), SCALANCE S623 (All versions < V4.1), SCALANCE S627-2M (All versions < V4.1), SCALANCE X-200 switch family (incl. SIPLUS NET variants) (All versions < 5.2.4), SCALANCE X-200IRT switch family (incl. SIPLUS NET variants) (All versions < V5.5.0), SCALANCE X-200RNA switch family (All versions < V3.2.7), SCALANCE X-300 switch family (incl. X408 and SIPLUS NET variants) (All versions < 4.1.3). The device does not send the X-Frame-Option Header in the administrative web interface, which makes it vulnerable to Clickjacking attacks. The security vulnerability could be exploited by an attacker that is able to trick an administrative user with a valid session on the target device into clicking on a website controlled by the attacker. The vulnerability could allow an attacker to perform administrative actions via the web interface.

Affected products

• Siemens Scalance X-200Irt Firmware: all versions
• Siemens Scalance X-300 Firmware: before 4.1.3 — fixed in 4.1.3
• Siemens Scalance Xb-200 Firmware: before 5.2.4 — fixed in 5.2.4
• Siemens Scalance Xc-200 Firmware: before 5.2.4 — fixed in 5.2.4
• Siemens Scalance Xf-200 Firmware: before 5.2.4 — fixed in 5.2.4
• Siemens Scalance Xp-200 Firmware: before 5.2.4 — fixed in 5.2.4
• Siemens Scalance Xr-300 Firmware: before 4.1.3 — fixed in 4.1.3
• Siemens Scalance Xr-300Wg Firmware: before 4.1.3 — fixed in 4.1.3

How to fix

Upgrade to a fixed version: Siemens Scalance X-300 Firmware 4.1.3; Siemens Scalance Xb-200 Firmware 5.2.4; Siemens Scalance Xc-200 Firmware 5.2.4; Siemens Scalance Xf-200 Firmware 5.2.4; Siemens Scalance Xp-200 Firmware 5.2.4; Siemens Scalance Xr-300 Firmware 4.1.3; Siemens Scalance Xr-300Wg Firmware 4.1.3. Check the vendor advisory for mitigations.

References

• https://cert-portal.siemens.com/productcert/pdf/ssa-951513.pdf
• https://www.us-cert.gov/ics/advisories/icsa-20-042-07
• https://cert-portal.siemens.com/productcert/pdf/ssa-951513.pdf
• https://www.us-cert.gov/ics/advisories/icsa-20-042-07

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