VDB-180444 · CVE-2021-25659 · ssa-158827

Siemens Automation License Manager 5/6 Service Port 4410 resource consumption

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.
3.4	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in Siemens Automation License Manager 5/6. Affected by this vulnerability is an unknown functionality of the component Service Port 4410. The manipulation results in resource consumption. This vulnerability is cataloged as CVE-2021-25659. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Siemens Automation License Manager 5/6 (Automation Software). Affected is an unknown code block of the component Service Port 4410. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. This is going to have an impact on availability.

The weakness was shared 08/10/2021 as ssa-158827. The advisory is shared for download at cert-portal.siemens.com. This vulnerability is traded as CVE-2021-25659. There are neither technical details nor an exploit publicly available.

Upgrading to version 6.0 SP9 Update 2 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Automation Software

Vendor

Siemens

Name

Automation License Manager

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: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

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

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

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Automation License Manager 6.0 SP9 Update 2

Timelineinfo

01/21/2021 🔍
08/10/2021 +200 days 🔍
08/10/2021 +0 days 🔍
08/15/2021 +5 days 🔍

Sourcesinfo

Vendor: siemens.com

Advisory: ssa-158827
Status: Confirmed

CVE: CVE-2021-25659 (🔍)
GCVE (CVE): GCVE-0-2021-25659
GCVE (VulDB): GCVE-100-180444

Entryinfo

Created: 08/10/2021 14:34
Updated: 08/15/2021 07:04
Changes: 08/10/2021 14:34 (40), 08/15/2021 07:04 (2)
Complete: 🔍
Cache ID: 216::103