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matrix-media-repo (MMR) allows unauthenticated writes to the media repository, which may allow planting of problematic content

MMR before version 1.3.5 allows, by design, unauthenticated remote participants to trigger a download and caching of remote media from a remote homeserver to the local media repository. Such content then also becomes available for download from the local homeserver in an unauthenticated way. The implication is that unauthenticated remote adversaries can use this functionality to plant problematic content into the media repository.

matrix-media-repo (MMR) allows denial of service/high operating costs through unauthenticated downloads

MMR before version 1.3.5 is vulnerable to unbounded disk consumption, where an unauthenticated adversary can induce it to download and cache large amounts of remote media files. MMR's typical operating environment uses S3-like storage as a backend, with file-backed store as an alternative option. Instances using a file-backed store or those which self-host an S3 storage system are therefore vulnerable to a disk fill attack. Once the disk is full, …

Matrix Media Repo (MMR) allows untrusted file formats can be thumbnailed, invoking potentially further untrusted decoders

If SVG or JPEGXL thumbnailers are enabled (they are disabled by default), a user may upload a file which claims to be either of these types and request a thumbnail to invoke a different decoder in ImageMagick. In some ImageMagick installations, this includes the capability to run Ghostscript to decode the image/file. If MP4 thumbnailers are enabled (also disabled by default), the same issue as above may occur with the …

LibreNMS Ports Stored Cross-site Scripting vulnerability

StoredXSS-LibreNMS-Ports Description: Stored XSS on the parameter: /ajax_form.php -> param: descr Request: POST /ajax_form.php HTTP/1.1 Host: <your_host> X-Requested-With: XMLHttpRequest X-CSRF-TOKEN: <your_XSRF_token> Content-Type: application/x-www-form-urlencoded; charset=UTF-8 Cookie: <your_cookie> type=update-ifalias&descr=%22%3E%3Cimg+src+onerror%3D%22alert(1)%22%3E&ifName=lo&port_id=1&device_id=1 of Librenms version 24.10.1 (https://github.com/librenms/librenms) allows remote attackers to inject malicious scripts. When a user views or interacts with the page displaying the data, the malicious script executes immediately, leading to potential unauthorized actions or data exposure. Proof of Concept: Add a new …

LibreNMS Ports Stored Cross-site Scripting vulnerability

StoredXSS-LibreNMS-Ports Description: Stored XSS on the parameter: /ajax_form.php -> param: descr Request: POST /ajax_form.php HTTP/1.1 Host: <your_host> X-Requested-With: XMLHttpRequest X-CSRF-TOKEN: <your_XSRF_token> Content-Type: application/x-www-form-urlencoded; charset=UTF-8 Cookie: <your_cookie> type=update-ifalias&descr=%22%3E%3Cimg+src+onerror%3D%22alert(1)%22%3E&ifName=lo&port_id=1&device_id=1 of Librenms version 24.10.1 (https://github.com/librenms/librenms) allows remote attackers to inject malicious scripts. When a user views or interacts with the page displaying the data, the malicious script executes immediately, leading to potential unauthorized actions or data exposure. Proof of Concept: Add a new …

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Issue with whitespace in JWT roles in OpenSearch

Advisory title: Issue with whitespace in JWT roles Affected versions: OpenSearch 1.0.0-1.3.7 and 2.0.0-2.4.1 Patched versions: OpenSearch 1.3.8 and 2.5.0 Impact: OpenSearch uses JWTs to store role claims obtained from the Identity Provider (IdP) when the authentication backend is SAML or OpenID Connect. There is an issue in how those claims are processed from the JWTs where the leading and trailing whitespace is trimmed, allowing users to potentially claim roles …

Field-level security issue with .keyword fields in OpenSearch

Advisory title: Field-level security issue with .keyword fields Affected versions: OpenSearch 1.0.0-1.3.7 and 2.0.0-2.4.1 Patched versions: OpenSearch 1.3.8 and 2.5.0 Impact: There is an issue in the implementation of field-level security (FLS) and field masking where rules written to explicitly exclude fields are not correctly applied for certain queries that rely on their auto-generated .keyword fields. This issue is only present for authenticated users with read access to the indexes …

http-swagger XSS via PUT requests

http-swagger before 1.2.6 allows XSS via PUT requests, because a file that has been uploaded (via httpSwagger.WrapHandler and *webdav.memFile) can subsequently be accessed via a GET request. NOTE: this is independently fixable with respect to CVE-2022-24863, because (if a solution continued to allow PUT requests) large files could have been blocked without blocking JavaScript, or JavaScript could have been blocked without blocking large files.

Duplicate Advisory: CVE-2024-5138: snapd snapctl auth bypass

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-p9v8-q5m4-pf46. This link is maintained to preserve external references. Original Description The snapctl component within snapd allows a confined snap to interact with the snapd daemon to take certain privileged actions on behalf of the snap. It was found that snapctl did not properly parse command-line arguments, allowing an unprivileged user to trigger an authorised action on …

Withdrawn Advisory: Netty vulnerability included in redis lettuce

Note: i'm reporting this in this way purely because it's private and i don't want to broadcast vulnerabilities. An unsafe reading of environment file could potentially cause a denial of service in Netty. When loaded on an Windows application, Netty attempts to load a file that does not exist. If an attacker creates such a large file, the Netty application crashes. This vulnerability is fixed in 4.1.115.

Withdrawn Advisory: undertow: information leakage via HTTP/2 request header reuse

Withdrawn Advisory This advisory has been withdrawn because it was determined to not be a valid vulnerability. This link is maintained to preserve external references. For more information, see https://nvd.nist.gov/vuln/detail/CVE-2024-4109. Original Description A flaw was found in Undertow. An HTTP request header value from a previous stream may be incorrectly reused for a request associated with a subsequent stream on the same HTTP/2 connection. This issue can potentially lead to …