PT-2021-2205 · Siemens · Scalance X-300+2

Published 2021-01-12 · Updated 2022-07-28 · CVE-2020-25226

Positive Technologies (AI Summary)

CVSS v2.0

10

Critical

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: SCALANCE X-200 versions prior to V5.2.5 SCALANCE X-200IRT versions prior to V5.5.0 SCALANCE X-300 (affected versions not specified)

Description: The issue is related to a buffer overflow condition in the web server of the affected devices. This can be triggered by sending a specially crafted request, potentially allowing a remote attacker to execute arbitrary code. The web server may stop and fail to recover after the attack.

Recommendations: For SCALANCE X-200 versions prior to V5.2.5, update to version V5.2.5 or later to resolve the issue. For SCALANCE X-200IRT versions prior to V5.5.0, update to version V5.5.0 or later to resolve the issue. For SCALANCE X-300, at the moment, there is no information about a newer version that contains a fix for this vulnerability.

Heap Based Buffer Overflow

Memory Corruption

Weakness Enumeration

CWE-122

CWE-787

Related Identifiers

BDU:2021-01114

CVE-2020-25226

Affected Products

Scalance X-200

Scalance X-200Irt

Scalance X-300

References · 4

• https://cert-portal.siemens.com/productcert/pdf/ssa-139628.pdf · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-01114 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2020-25226 · Security Note
• https://osv.dev/vulnerability/CVE-2020-25226 · Vendor Advisory