2021-40089 | PrimeKey EJBCA General Purpose Custom Publisher access control

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.
4.4	$0-$5k	0.26

A vulnerability was found in PrimeKey EJBCA up to 7.5.x. It has been classified as critical. This affects an unknown code of the component General Purpose Custom Publisher. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-284. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in PrimeKey EJBCA before 7.6.0. The General Purpose Custom Publisher, which is normally run to invoke a local script upon a publishing operation, was still able to run if the System Configuration setting Enable External Script Access was disabled. With this setting disabled it’s not possible to create new such publishers, but existing publishers would continue to run.

The weakness was disclosed 08/25/2021. The advisory is shared at support.primekey.com. This vulnerability is uniquely identified as CVE-2021-40089 since 08/25/2021. The exploitability is told to be difficult. The attack needs to be initiated within the local network. A authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version 7.6.0 eliminates this vulnerability.

Vendor

Name

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.4

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

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: 🔍
Class: Privilege escalation
CWE: CWE-284
ATT&CK: T1068

Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: EJBCA 7.6.0

08/25/2021 Advisory disclosed
08/25/2021 +0 days CVE assigned
08/25/2021 +0 days VulDB entry created
08/29/2021 +4 days VulDB last updateAdvisory: support.primekey.com
Status: Confirmed

CVE: CVE-2021-40089 (🔒)

Created: 08/25/2021 11:16
Updated: 08/29/2021 06:37
Changes: (2) source_cve_assigned source_cve_nvd_summary
Complete: 🔍

Comments

Enable the mail alert feature now!