CVE-2021-25669

Description

A vulnerability has been identified in SCALANCE X200-4P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT (All versions < 5.5.1), SCALANCE X201-3P IRT PRO (All versions < 5.5.1), SCALANCE X202-2 IRT (All versions < 5.5.1), SCALANCE X202-2P IRT (incl. SIPLUS NET variant) (All versions < 5.5.1), SCALANCE X202-2P IRT PRO (All versions < 5.5.1), SCALANCE X204 IRT (All versions < 5.5.1), SCALANCE X204 IRT PRO (All versions < 5.5.1), SCALANCE X204-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X204-2FM (All versions < V5.2.5), SCALANCE X204-2LD (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X204-2LD TS (All versions < V5.2.5), SCALANCE X204-2TS (All versions < V5.2.5), SCALANCE X206-1 (All versions < V5.2.5), SCALANCE X206-1LD (All versions < V5.2.5), SCALANCE X208 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X208PRO (All versions < V5.2.5), SCALANCE X212-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE X212-2LD (All versions < V5.2.5), SCALANCE X216 (All versions < V5.2.5), SCALANCE X224 (All versions < V5.2.5), SCALANCE XF201-3P IRT (All versions < 5.5.1), SCALANCE XF202-2P IRT (All versions < 5.5.1), SCALANCE XF204 (All versions < V5.2.5), SCALANCE XF204 IRT (All versions < 5.5.1), SCALANCE XF204-2 (incl. SIPLUS NET variant) (All versions < V5.2.5), SCALANCE XF204-2BA IRT (All versions < 5.5.1), SCALANCE XF206-1 (All versions < V5.2.5), SCALANCE XF208 (All versions < V5.2.5). Incorrect processing of POST requests in the web server may write out of bounds in stack. An attacker might leverage this to denial-of-service of the device or remote code execution.

Categories

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.00% Top 25%
Vendor Advisory siemens.com
Affected: Siemens SCALANCE X200-4P IRT
Affected: Siemens SCALANCE X201-3P IRT
Affected: Siemens SCALANCE X201-3P IRT PRO
Affected: Siemens SCALANCE X202-2 IRT
Affected: Siemens SCALANCE X202-2P IRT (incl. SIPLUS NET variant)
Affected: Siemens SCALANCE X202-2P IRT PRO
Affected: Siemens SCALANCE X204 IRT
Affected: Siemens SCALANCE X204 IRT PRO
Affected: Siemens SCALANCE X204-2 (incl. SIPLUS NET variant)
Affected: Siemens SCALANCE X204-2FM
Affected: Siemens SCALANCE X204-2LD (incl. SIPLUS NET variant)
Affected: Siemens SCALANCE X204-2LD TS
Affected: Siemens SCALANCE X204-2TS
Affected: Siemens SCALANCE X206-1
Affected: Siemens SCALANCE X206-1LD
Affected: Siemens SCALANCE X208 (incl. SIPLUS NET variant)
Affected: Siemens SCALANCE X208PRO
Affected: Siemens SCALANCE X212-2 (incl. SIPLUS NET variant)
Affected: Siemens SCALANCE X212-2LD
Affected: Siemens SCALANCE X216
Affected: Siemens SCALANCE X224
Affected: Siemens SCALANCE XF201-3P IRT
Affected: Siemens SCALANCE XF202-2P IRT
Affected: Siemens SCALANCE XF204
Affected: Siemens SCALANCE XF204 IRT
Affected: Siemens SCALANCE XF204-2 (incl. SIPLUS NET variant)
Affected: Siemens SCALANCE XF204-2BA IRT
Affected: Siemens SCALANCE XF206-1
Affected: Siemens SCALANCE XF208
Published at:
Updated at:

References

Link Tags
https://cert-portal.siemens.com/productcert/pdf/ssa-187092.pdf patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-25669?
CVE-2021-25669 has been scored as a critical severity vulnerability.
How to fix CVE-2021-25669?
To fix CVE-2021-25669, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-25669 being actively exploited in the wild?
It is possible that CVE-2021-25669 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-25669?
CVE-2021-25669 affects Siemens SCALANCE X200-4P IRT, Siemens SCALANCE X201-3P IRT, Siemens SCALANCE X201-3P IRT PRO, Siemens SCALANCE X202-2 IRT, Siemens SCALANCE X202-2P IRT (incl. SIPLUS NET variant), Siemens SCALANCE X202-2P IRT PRO, Siemens SCALANCE X204 IRT, Siemens SCALANCE X204 IRT PRO, Siemens SCALANCE X204-2 (incl. SIPLUS NET variant), Siemens SCALANCE X204-2FM, Siemens SCALANCE X204-2LD (incl. SIPLUS NET variant), Siemens SCALANCE X204-2LD TS, Siemens SCALANCE X204-2TS, Siemens SCALANCE X206-1, Siemens SCALANCE X206-1LD, Siemens SCALANCE X208 (incl. SIPLUS NET variant), Siemens SCALANCE X208PRO, Siemens SCALANCE X212-2 (incl. SIPLUS NET variant), Siemens SCALANCE X212-2LD, Siemens SCALANCE X216, Siemens SCALANCE X224, Siemens SCALANCE XF201-3P IRT, Siemens SCALANCE XF202-2P IRT, Siemens SCALANCE XF204, Siemens SCALANCE XF204 IRT, Siemens SCALANCE XF204-2 (incl. SIPLUS NET variant), Siemens SCALANCE XF204-2BA IRT, Siemens SCALANCE XF206-1, Siemens SCALANCE XF208.
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