CVE-2021-21437 : Vulnerability Insights and Analysis
Learn about CVE-2021-21437, a vulnerability in OTRS products allowing unauthorized users to view Config Items without proper permissions. Find mitigation steps and security practices to prevent data breaches.
Agents are able to see linked Config Items without permissions, which are defined in General Catalog. This vulnerability affects OTRSCIsInCustomerFrontend 7.0.15 and prior versions, as well as ITSMConfigurationManagement 7.0.24 and prior versions. Users without proper permissions could access sensitive information linked to Config Items.
Understanding CVE-2021-21437
This CVE highlights a security issue in OTRS products that allow unauthorized users to view Config Items without the required permissions.
What is CVE-2021-21437?
CVE-2021-21437 exposes a vulnerability in the permission settings of OTRSCIsInCustomerFrontend and ITSMConfigurationManagement, leading to unauthorized access to linked Config Items.
The Impact of CVE-2021-21437
This vulnerability could result in exposing sensitive information to unauthorized users, potentially leading to data breaches and confidentiality issues.
Technical Details of CVE-2021-21437
The vulnerability is rated with a CVSS base score of 3.5 (Low severity) with attack complexity as low and privileges required as low. The attack vector is through the network, and user interaction is required for exploitation.
Vulnerability Description
Unauthorized users can view Config Items in OTRSCIsInCustomerFrontend and ITSMConfigurationManagement without appropriate permissions, potentially compromising sensitive data.
Affected Systems and Versions
OTRSCIsInCustomerFrontend versions 7.0.15 and prior, and ITSMConfigurationManagement versions 7.0.24 and earlier are affected by this vulnerability.
Exploitation Mechanism
Attackers with network access and minimal privileges can exploit this vulnerability by interacting with the application to view restricted Config Items.
Mitigation and Prevention
To address CVE-2021-21437, it is crucial to take immediate action to secure the affected systems and prevent unauthorized access.
Immediate Steps to Take
Update to ITSMConfigurationManagement version 7.0.25 and OTRSCIsInCustomerFrontend version 7.0.16 to mitigate the vulnerability and secure Config Item access.
Long-Term Security Practices
Regularly review and adjust permission settings to ensure only authorized users can access sensitive information in OTRS products.
Patching and Updates
Stay informed about security advisories from OTRS and apply patches promptly to protect against known vulnerabilities.