VDB-167717 · CVE-2020-25226 · ssa-139628

Siemens SCALANCE X-200/SCALANCE X-200IRT Web Server heap-based overflow

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.
7.6	$5k-$25k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Siemens SCALANCE X-200 and SCALANCE X-200IRT. Affected by this vulnerability is an unknown functionality of the component Web Server. The manipulation leads to heap-based overflow. This vulnerability is uniquely identified as CVE-2020-25226. The attack can only be initiated within the local network. No exploit exists.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Siemens SCALANCE X-200 and SCALANCE X-200IRT (the affected version is unknown). This issue affects an unknown code of the component Web Server. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 01/13/2021 as ssa-139628. The advisory is shared at cert-portal.siemens.com. The identification of this vulnerability is CVE-2020-25226. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 02/12/2021).

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

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Productinfo

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: 7.6
VulDB Meta Temp Score: 7.6

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Heap-based overflow
CWE: CWE-122 / CWE-119
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
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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/10/2020 🔍
01/13/2021 +125 days 🔍
01/13/2021 +0 days 🔍
02/12/2021 +30 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-139628
Status: Not defined

CVE: CVE-2020-25226 (🔍)
GCVE (CVE): GCVE-0-2020-25226
GCVE (VulDB): GCVE-100-167717

Entryinfo

Created: 01/13/2021 11:05
Updated: 02/12/2021 13:38
Changes: 01/13/2021 11:05 (36), 02/12/2021 13:34 (2), 02/12/2021 13:38 (18)
Complete: 🔍
Cache ID: 216::103