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.
8.2	$0-$5k	0.00

A vulnerability classified as very critical has been found in Siemens Scalance X204irt (the affected version is unknown). This affects an unknown code. The manipulation with an unknown input leads to a numeric error vulnerability. CWE is classifying the issue as CWE-189. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The authentication implementation in the web server on Siemens SCALANCE X-200 switches with firmware before 5.0.0 does not use a sufficient source of entropy for generating values of random numbers, which makes it easier for remote attackers to hijack sessions by predicting a value.

The weakness was released 09/17/2013 with IOActive (Website). It is possible to read the advisory at ics-cert.us-cert.gov. This vulnerability is uniquely identified as CVE-2013-5709 since 09/06/2013. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 01/07/2022).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (87030).

Productinfo

Vendor

• Siemens

Name

• Scalance X204irt

License

• commercial

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.6
VulDB Meta Temp Score: 8.2

VulDB Base Score: 8.6
VulDB Temp Score: 8.2
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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Numeric error
CWE: CWE-189
ATT&CK: Unknown

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: 103227
OpenVAS Name: Siemens Scalance X-200 Series Switches Insufficient Entropy Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/06/2013 🔍
09/11/2013 +5 days 🔍
09/11/2013 +0 days 🔍
09/17/2013 +6 days 🔍
09/17/2013 +0 days 🔍
09/22/2013 +5 days 🔍
03/24/2015 +548 days 🔍
01/07/2022 +2481 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-850708
Organization: IOActive
Status: Not defined
Confirmation: 🔍

CVE: CVE-2013-5709 (🔍)
X-Force: 87030
Vulnerability Center: 41567 - Siemens SCALANCE X-200 Switches Web Server Authentication Implementation Allows Remote Session Hijacking, Medium
SecurityFocus: 62341 - Siemens Scalance X-200 Series Switches Insufficient Entropy Vulnerability

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/07/2022 16:16
Changes: 03/24/2015 15:54 (46), 02/26/2018 08:01 (15), 01/07/2022 16:16 (3)
Complete: 🔍

Discussion

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