critical
9.8
CWE
330
Advisory Published
Updated

CVE-2022-26647

First published: Tue Jul 12 2022(Updated: )

A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT (All versions < V5.5.2), SCALANCE X201-3P IRT PRO (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2IRT (All versions < V5.5.2), SCALANCE X202-2P IRT (All versions < V5.5.2), SCALANCE X202-2P IRT PRO (All versions < V5.5.2), SCALANCE X204-2 (All versions < V5.2.6), SCALANCE X204-2FM (All versions < V5.2.6), SCALANCE X204-2LD (All versions < V5.2.6), SCALANCE X204-2LD TS (All versions < V5.2.6), SCALANCE X204-2TS (All versions < V5.2.6), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT (All versions < V5.5.2), SCALANCE X204IRT PRO (All versions < V5.5.2), SCALANCE X206-1 (All versions < V5.2.6), SCALANCE X206-1LD (All versions < V5.2.6), SCALANCE X208 (All versions < V5.2.6), SCALANCE X208PRO (All versions < V5.2.6), SCALANCE X212-2 (All versions < V5.2.6), SCALANCE X212-2LD (All versions < V5.2.6), SCALANCE X216 (All versions < V5.2.6), SCALANCE X224 (All versions < V5.2.6), SCALANCE XF201-3P IRT (All versions < V5.5.2), SCALANCE XF202-2P IRT (All versions < V5.5.2), SCALANCE XF204 (All versions < V5.2.6), SCALANCE XF204-2 (All versions < V5.2.6), SCALANCE XF204-2BA IRT (All versions < V5.5.2), SCALANCE XF204IRT (All versions < V5.5.2), SCALANCE XF206-1 (All versions < V5.2.6), SCALANCE XF208 (All versions < V5.2.6). The webserver of affected devices calculates session ids and nonces in an insecure manner. This could allow an unauthenticated remote attacker to brute-force session ids and hijack existing sessions.

Credit: productcert@siemens.com

Affected SoftwareAffected VersionHow to fix
Siemens Scalance X-200IRT
Siemens SCALANCE X200-4PIRT
Siemens SCALANCE X201-3P IRT
Siemens SCALANCE X201-3P IRT PRO
Siemens SCALANCE X201-3P IRT PRO
Siemens Scalance X201-3P IRT Pro Firmware
Siemens SCALANCE X202-2P IRT firmware
Siemens SCALANCE X202-2P IRT PRO
Siemens SIPLUS NET SCALANCE X202-2P IRT
Siemens SCALANCE X202-2P IRT firmware
Siemens SCALANCE X202-2P IRT PRO
Siemens Scalance X202-2P IRT PRO Firmware
Siemens Scalance X204-2<5.2.6
Siemens Scalance X204-2
Siemens Scalance X204-2FM Firmware<5.2.6
Siemens SCALANCE X204-2FM
Siemens Scalance X204-2LD TS<5.2.6
Siemens Scalance X204-2 Firmware
Siemens Scalance X204-2LD TS<5.2.6
Siemens SCALANCE X204-2LD TS
Siemens Scalance X204-2TS<5.2.6
Siemens SCALANCE X204-2TS
Siemens Scalance X204 IRT Firmware
Siemens Scalance X-200IRT
Siemens Scalance X204 IRT Firmware
Siemens Scalance X204IRT PRO Firmware
Siemens Scalance X206-1LD<5.2.6
Siemens Scalance X206-1 Firmware
Siemens Scalance X206-1LD<5.2.6
Siemens SCALANCE X206-1LD
Siemens Scalance X208 Pro Firmware<5.2.6
Siemens Scalance X208
Siemens Scalance X208<5.2.6
Siemens SCALANCE X208PRO
Siemens Scalance X212-2LD<5.2.6
Siemens SCALANCE X212-2LD
Siemens Scalance X212-2LD Firmware<5.2.6
Siemens Scalance X212-2LD Firmware
Siemens Scalance X216 Firmware<5.2.6
Siemens SCALANCE X-200 Firmware
Siemens Scalance X224 Firmware<5.2.6
Siemens Scalance X224 Firmware
Siemens Scalance XF201-3P IRT
Siemens SCALANCE XF201-3P IRT
Siemens Scalance XF202-2P IRT
Siemens SCALANCE XF202-2P IRT
Siemens Scalance XF204 Firmware<5.2.6
Siemens Scalance XF204-2 Firmware
Siemens Scalance XF204-2 Firmware<5.2.6
Siemens SCALANCE XF204-2
Siemens SCALANCE XF204-2BA IRT Firmware
Siemens Scalance XF204-2BA IRT
Siemens SCALANCE XF204IRT
Siemens SCALANCE XF204IRT firmware
Siemens Scalance XF206-1<5.2.6
Siemens SCALANCE XF206-1
Siemens Scalance XF208<5.2.6
Siemens Scalance XF208

Remedy

https://cert-portal.siemens.com/productcert/pdf/ssa-310038.pdf

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2022-26647?

    CVE-2022-26647 has a CVSS score indicating it is a critical vulnerability affecting multiple Siemens SCALANCE products.

  • How do I fix CVE-2022-26647?

    To remediate CVE-2022-26647, update the firmware of the affected SCALANCE devices to version V5.5.2 or later.

  • Which devices are affected by CVE-2022-26647?

    CVE-2022-26647 affects various Siemens SCALANCE X200, X201, X202 devices with firmware versions prior to V5.5.2.

  • What is the potential impact of CVE-2022-26647?

    The potential impact of CVE-2022-26647 includes unauthorized access and control of the affected SCALANCE devices.

  • Is there a workaround for CVE-2022-26647?

    Currently, no specific workarounds are published for CVE-2022-26647, so upgrading the firmware is the recommended action.

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