VDB-162071 · CVE-2020-12506 · GCVE-0-2020-12506

WAGO 750-890 improper authentication

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.
9.5	$0-$5k	0.00

Summaryinfo

A vulnerability was found in WAGO 750-362, 750-363, 750-823, 750-832, 750-862, 750-891 and 750-890. It has been rated as critical. This affects an unknown function. The manipulation leads to improper authentication. This vulnerability is documented as CVE-2020-12506. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in WAGO 750-362, 750-363, 750-823, 750-832, 750-862, 750-891 and 750-890. It has been rated as very critical. This issue affects an unknown function. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Improper Authentication vulnerability in WAGO 750-8XX series with FW version <= FW03 allows an attacker to change the settings of the devices by sending specifically constructed requests without authentication This issue affects: WAGO 750-362 version FW03 and prior versions. WAGO 750-363 version FW03 and prior versions. WAGO 750-823 version FW03 and prior versions. WAGO 750-832/xxx-xxx version FW03 and prior versions. WAGO 750-862 version FW03 and prior versions. WAGO 750-891 version FW03 and prior versions. WAGO 750-890/xxx-xxx version FW03 and prior versions.

The weakness was released 09/30/2020 (Website). It is possible to read the advisory at cert.vde.com. The identification of this vulnerability is CVE-2020-12506 since 04/30/2020. The attack may be initiated remotely. No form of authentication is needed for a successful 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 10/01/2020).

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

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

WAGO

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.5
VulDB Meta Temp Score: 9.5

VulDB Base Score: 9.8
VulDB Temp Score: 9.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.1
NVD Vector: 🔍

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: Improper authentication
CWE: CWE-287
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
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/30/2020 🔍
09/30/2020 +153 days 🔍
10/01/2020 +1 days 🔍
11/14/2020 +44 days 🔍

Sourcesinfo

Advisory: cert.vde.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-12506 (🔍)
GCVE (CVE): GCVE-0-2020-12506
GCVE (VulDB): GCVE-100-162071

Entryinfo

Created: 10/01/2020 08:40
Updated: 11/14/2020 21:44
Changes: 10/01/2020 08:40 (36), 10/01/2020 08:45 (11), 11/14/2020 21:36 (1), 11/14/2020 21:44 (1)
Complete: 🔍
Cache ID: 216::103