CVE-2023-37599
Published: 13 July 2023
Summary
CVE-2023-37599 is a high-severity Exposure of Resource to Wrong Sphere (CWE-668) vulnerability in Issabel Pbx. Its CVSS base score is 7.5 (High).
Operationally, ranked in the top 0.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
Issabel PBX version 4.0.0-6 is affected by an information disclosure vulnerability that exposes contents of the modules directory to remote access. The flaw is tracked as CWE-668 and rated 7.5 under CVSS 3.1 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N), indicating that sensitive data can be retrieved without authentication or user interaction over the network.
An unauthenticated attacker with network connectivity can directly request resources within the modules directory to obtain sensitive information such as configuration details or other files that should remain restricted. This access can be achieved through standard HTTP requests targeting the exposed path.
Public references consist of a GitHub repository containing proof-of-concept material for CVE-2023-37599. The EPSS score reached a peak of 0.8936 and currently stands at 0.8561.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-41483
Vulnerability details
An issue in issabel-pbx v.4.0.0-6 allows a remote attacker to obtain sensitive information via the modules directory
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Controls whether organization resources are exposed to external system spheres by permitting or prohibiting their use.
The control ensures information is not released into a security sphere where the recipient lacks matching access authorizations.
The control ensures information resources are not exposed to the incorrect (public) sphere through review and authorization.
Protects against data mining that would expose resources to unauthorized spheres by enforcing detection and controls.
Restricts information flows to ensure resources are not exposed to incorrect or unauthorized spheres.
Controlling internal connections prevents exposure of resources to unintended internal spheres.
Knowing exact processing and storage locations helps avoid exposure of resources to incorrect spheres.
The control prevents exposure of the media resource to the wrong security sphere.