KnowBe4 Security Awareness Training prior 2020-01-10 window.location.href redirect

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.
4.7$0-$5k0.00

Summaryinfo

A vulnerability was found in KnowBe4 Security Awareness Training and classified as problematic. Impacted is an unknown function. Such manipulation of the argument window.location.href leads to redirect. This vulnerability is referenced as CVE-2020-36845. It is possible to launch the attack remotely. No exploit is available. This product is a managed service, which means users themselves cannot handle vulnerability countermeasures. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in KnowBe4 Security Awareness Training. Affected by this issue is an unknown code. The manipulation of the argument window.location.href with an unknown input leads to a redirect vulnerability. Using CWE to declare the problem leads to CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. Impacted is integrity. CVE summarizes:

The KnowBe4 Security Awareness Training application before 2020-01-10 contains a redirect function that does not validate the destination URL before redirecting. The response has a SCRIPT element that sets window.location.href to an arbitrary https URL.

The advisory is available at doyler.net. This vulnerability is handled as CVE-2020-36845 since 04/20/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1204.001 by the MITRE ATT&CK project.

Upgrading to version 2020-01-10 eliminates this vulnerability.

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Productinfo

Vendor

Name

Managed Service

  • yes

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.8
VulDB Meta Temp Score: 4.7

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.3
CNA Vector (MITRE): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Redirect
CWE: CWE-601
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Status: 🔍

0-Day Time: 🔍

Upgrade: Security Awareness Training 2020-01-10

Timelineinfo

01/10/2020 🔍
04/20/2025 +1926 days 🔍
04/21/2025 +1 days 🔍
04/21/2025 +0 days 🔍
04/21/2025 +0 days 🔍

Sourcesinfo

Advisory: doyler.net
Status: Confirmed

CVE: CVE-2020-36845 (🔍)
GCVE (CVE): GCVE-0-2020-36845
GCVE (VulDB): GCVE-100-305750

Entryinfo

Created: 04/21/2025 03:03
Changes: 04/21/2025 03:03 (65)
Complete: 🔍
Cache ID: 216::103

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