PT-2021-20303 · Siemens · Sinec Nms

Published 2021-10-12 · Updated 2021-10-18 · CVE-2021-33728

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: SINEC NMS versions prior to V1.0 SP2 Update 1

Description: A vulnerability has been identified that allows the upload of JSON objects which are deserialized to JAVA objects. Due to insecure deserialization of user-supplied content, a privileged attacker could exploit this vulnerability by sending a crafted serialized Java object, potentially allowing the execution of arbitrary code on the device with root privileges.

Recommendations: For versions prior to V1.0 SP2 Update 1, update to V1.0 SP2 Update 1 or later to resolve the issue. As a temporary workaround, consider restricting the upload of JSON objects to trusted sources until a patch is applied.

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2021-33728

Affected Products

Sinec Nms

References · 4

• https://cert-portal.siemens.com/productcert/pdf/ssa-163251.pdf · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-33728 · Security Note
• https://osv.dev/vulnerability/CVE-2021-33728 · Vendor Advisory
• https://t.me/cibsecurity/30377 · Telegram Post