Users unable to upgrade should block all HTTP requests to the following HTTP API endpoints by using a reverse proxy server in front of Graylog. This vulnerability is fixed in Graylog version 5.1.3 and later. For the Graylog Docker images, the `data_dir` is set to `/usr/share/graylog/data` by default. The vulnerability would allow the download or deletion of files in the following example directories: `/var/lib/graylog-server/support-bundle-test` and `/var/lib/graylog-server/support-bundlesdirectory`. Due to the partial path traversal vulnerability, an attacker with valid Admin role credentials can read or delete files in directories that start with a `/var/lib/graylog-server/support-bundle` directory name. The data directory for the Support Bundle feature is always `/support-bundle`. The default `data_dir` in operating system packages (DEB, RPM) is set to `/var/lib/graylog-server`. Graylog's Support Bundle feature allows an attacker with valid Admin role credentials to download or delete files in sibling directories of the support bundle directory. The vulnerability is caused by incorrect user input validation in an HTTP API resource. A partial path traversal vulnerability exists in Graylog's `Support Bundle` feature. Users unable to upgrade can avoid this denial of service attack by enabling the Layer 7 proxy.ĬVE-2023-41044 Graylog is a free and open log management platform.
This issue has been resolved in Cilium versions 1.14.2, 1.13.7, and 1.12.14.
The denial of service will be limited to the node on which the workload is scheduled, however an attacker may be able to schedule workloads on the node of their choosing, which could lead to targeted attacks. This will also prevent workloads from being able to start on the affected node. Existing traffic on the affected node will continue to flow, but the Cilium agent on the node will not able to process changes to workloads running on the node. In Cilium clusters where Cilium's Layer 7 proxy has been disabled, creating workloads with `/proxy-visibility` annotations (in Cilium >= v1.13) or `io.cilium.proxy-visibility` annotations (in Cilium <= v1.12) causes the Cilium agent to segfault on the node to which the workload is assigned. CVE-2023-41332 Cilium is a networking, observability, and security solution with an eBPF-based dataplane.
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