Vulnerability CVE-2021-44695

Vulnerability Name:

CVE-2021-44695 (CCN-242305)

Assigned:

2021-12-07

Published:

2022-12-13

Updated:

2023-07-11

Summary:

CVSS v3 Severity:

4.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
4.3 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): High User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

4.9 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
4.3 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): High User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

CVSS v2 Severity:

6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Complete

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2021-44695

Source: CCN
Type: Siemens Security Advisory SSA-38265
Multiple Denial of Service Vulnerabilities in Industrial Products

Source: productcert@siemens.com
Type: Patch, Vendor Advisory
productcert@siemens.com

Source: XF
Type: UNKNOWN
siemens-cve202144695-dos(242305)

Source: CCN
Type: ICSA-22-349-03
Siemens Multiple Denial of Service Vulnerabilities in Industrial Products

Vulnerable Configuration:

Configuration CCN 1:

cpe:/a:siemens:simatic_s7-1500__software_controller:-:*:*:*:*:*:*:*

OR cpe:/h:siemens:tim_1531_irc:-:*:*:*:*:*:*:*

OR cpe:/a:siemens:simatic_s7-plcsim_advanced:-:*:*:*:*:*:*:*

OR cpe:/h:siemens:simatic_et_200sp_open_controller_cpu_1515sp_pc2:-:*:*:*:*:*:*:*

OR cpe:/h:siemens:siplus_tim_1531_irc:-:*:*:*:*:*:*:*

Denotes that component is vulnerable

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