Siemens SIMATIC Cloud Connect 7 2.0 MQTT Parser missing standardized error handling mechanism

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.
6.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Siemens SIMATIC Cloud Connect 7 2.0. This affects an unknown function of the component MQTT Parser. Executing a manipulation can lead to missing standardized error handling mechanism. This vulnerability is tracked as CVE-2023-29105. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Siemens SIMATIC Cloud Connect 7 2.0 (SCADA Software). This vulnerability affects some unknown functionality of the component MQTT Parser. The manipulation with an unknown input leads to a missing standardized error handling mechanism vulnerability. The CWE definition for the vulnerability is CWE-544. The product does not use a standardized method for handling errors throughout the code, which might introduce inconsistent error handling and resultant weaknesses. As an impact it is known to affect availability. CVE summarizes:

A vulnerability has been identified in SIMATIC Cloud Connect 7 CC712 (All versions >= V2.0 = V2.0 < V2.1), SIMATIC Cloud Connect 7 CC716 (All versions < V2.1). The affected device is vulnerable to a denial of service while parsing a random (non-JSON) MQTT payload. This could allow an attacker who can manipulate the communication between the MQTT broker and the affected device to cause a denial of service (DoS).

The weakness was disclosed 05/09/2023 as ssa-555292. The advisory is shared for download at cert-portal.siemens.com. This vulnerability was named CVE-2023-29105 since 03/31/2023. There are neither technical details nor an exploit publicly available.

Upgrading to version 2.1 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CNA Base Score: 5.9
CNA Vector (Siemens AG): 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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

Exploitinginfo

Class: Missing standardized error handling mechanism
CWE: CWE-544
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: SIMATIC Cloud Connect 7 2.1

Timelineinfo

03/31/2023 🔍
05/09/2023 +39 days 🔍
05/09/2023 +0 days 🔍
06/01/2023 +23 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-555292
Status: Confirmed

CVE: CVE-2023-29105 (🔍)
GCVE (CVE): GCVE-0-2023-29105
GCVE (VulDB): GCVE-100-228412

Entryinfo

Created: 05/09/2023 16:12
Updated: 06/01/2023 08:31
Changes: 05/09/2023 16:12 (51), 06/01/2023 08:31 (11)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to stay up to date on a daily basis?

Enable the mail alert feature now!