CVE-2020-14987: 
Bloomreach Experience Manager vulnerability analysis and mitigation

An issue was discovered in Bloomreach Experience Manager (brXM) versions 4.1.0 through 14.2.2. The vulnerability (CVE-2020-14987) allows remote attackers to execute arbitrary code through the administrator's capability to write and run Groovy scripts within the updater editor. The exploitation requires the use of an AST transforming annotation such as @Grab (NVD).

The vulnerability exists in the updater editor functionality accessible to administrators. While the application has restrictions on Java system commands, attackers can bypass these restrictions using Groovy transformations, specifically the @ASTTest transformation. This transformation is designed for debugging AST transformations and the Groovy compiler, allowing access to the Abstract Syntax Tree before bytecode production. This enables the execution of system commands despite the existing security measures (BrXM Advisory). The vulnerability has been assigned a CVSS v3.1 Base Score of 7.2 HIGH (Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H) (NVD).

If successfully exploited, this vulnerability allows attackers with administrative access to execute arbitrary system commands on the underlying system. In containerized environments, this could lead to complete container compromise with root privileges. The vulnerability affects the confidentiality, integrity, and availability of the system (BrXM Advisory).

Bloomreach has indicated that this vulnerability will not be fixed as the functionality is considered intended behavior. The recommended mitigation is to restrict access to the updater editor to a minimal set of trusted administrators only. Organizations should implement strict access controls and carefully monitor administrator activities (BrXM Advisory).