Siemens SIMATIC S7-300 up to 3.2.11 resource management

HistoryDiffrelatejsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Siemens SIMATIC S7-300 up to 3.2.11 and classified as problematic. This impacts an unknown function. Executing a manipulation can lead to resource management. This vulnerability is tracked as CVE-2016-3949. The attack can be launched remotely. No exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Siemens SIMATIC S7-300 up to 3.2.11 (SCADA Software). This vulnerability affects an unknown code. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. CVE summarizes:

Siemens SIMATIC S7-300 Profinet-enabled CPU devices with firmware before 3.2.12 and SIMATIC S7-300 Profinet-disabled CPU devices with firmware before 3.3.12 allow remote attackers to cause a denial of service (defect-mode transition) via crafted (1) ISO-TSAP or (2) Profibus packets.

The weakness was disclosed 06/27/2016 (Website). The advisory is shared for download at siemens.com. This vulnerability was named CVE-2016-3949 since 04/05/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 3.2.12 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

SCADA Software

Vendor

Siemens

Name

SIMATIC S7-300

Version

License

commercial

Website

Vendor: https://www.siemens.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

OpenVAS ID: 835142
OpenVAS Name: Siemens SIMATIC S7-300 DoS Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SIMATIC S7-300 3.2.12

Timelineinfo

04/05/2016 🔍
06/27/2016 +83 days 🔍
06/27/2016 +0 days 🔍
06/29/2016 +2 days 🔍
08/25/2022 +2248 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-818183
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-3949 (🔍)
GCVE (CVE): GCVE-0-2016-3949
GCVE (VulDB): GCVE-100-88372
SecurityTracker: 1036089

Entryinfo

Created: 06/29/2016 11:20
Updated: 08/25/2022 11:51
Changes: 06/29/2016 11:20 (52), 02/12/2019 10:34 (10), 08/25/2022 11:51 (4)
Complete: 🔍
Cache ID: 216:A76:103