VDB-182585 · CVE-2021-33716 · ssa-535997

Siemens SIMATIC CP 1543-1/SIMATIC CP 1545-1 cleartext storage

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.
3.5	$0-$5k	0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Siemens SIMATIC CP 1543-1 and SIMATIC CP 1545-1. The impacted element is an unknown function. The manipulation leads to cleartext storage. This vulnerability is referenced as CVE-2021-33716. The attack needs to be initiated within the local network. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Siemens SIMATIC CP 1543-1 and SIMATIC CP 1545-1 (SCADA Software) (the affected version is unknown). This issue affects an unknown code. The manipulation with an unknown input leads to a cleartext storage vulnerability. Using CWE to declare the problem leads to CWE-312. The product stores sensitive information in cleartext within a resource that might be accessible to another control sphere. Impacted is confidentiality.

The weakness was published 09/14/2021 as ssa-535997. The advisory is shared at cert-portal.siemens.com. The identification of this vulnerability is CVE-2021-33716 since 05/28/2021. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/14/2021). MITRE ATT&CK project uses the attack technique T1555 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

SCADA Software

Vendor

Siemens

Name

License

commercial

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

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: 🔍

Exploitinginfo

Class: Cleartext storage
CWE: CWE-312 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/28/2021 🔍
09/14/2021 +109 days 🔍
09/14/2021 +0 days 🔍
09/17/2021 +3 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-535997
Status: Confirmed

CVE: CVE-2021-33716 (🔍)
GCVE (CVE): GCVE-0-2021-33716
GCVE (VulDB): GCVE-100-182585

Entryinfo

Created: 09/14/2021 15:47
Updated: 09/17/2021 07:07
Changes: 09/14/2021 15:47 (37), 09/17/2021 07:07 (1)
Complete: 🔍
Cache ID: 216::103