GHSA-C7HH-3V6C-FJ4Q
Vulnerability from github – Published: 2023-08-04 17:26 – Updated: 2023-08-04 17:26
VLAI?
Summary
matrix-appservice-irc events can be crafted to leak parts of targeted messages from other bridged rooms
Details
Impact
It was possible to craft an event such that it would leak part of a targeted message event from another bridged room. This required knowing an event ID to target.
Patches
Please upgrade to 1.0.1.
Workarounds
You can set the matrixHandler.eventCacheSize config value to 0 to workaround this bug. However, this may impact performance.
Credits
Discovered and reported by Val Lorentz.
For more information
If you have any questions or comments about this advisory email us at security@matrix.org.
Severity ?
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.0.0"
},
"package": {
"ecosystem": "npm",
"name": "matrix-appservice-irc"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.0.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-38700"
],
"database_specific": {
"cwe_ids": [
"CWE-200"
],
"github_reviewed": true,
"github_reviewed_at": "2023-08-04T17:26:07Z",
"nvd_published_at": "2023-08-04T19:15:09Z",
"severity": "LOW"
},
"details": "### Impact\n\nIt was possible to craft an event such that it would leak part of a targeted message event from another bridged room. This required knowing an event ID to target.\n\n### Patches\n\nPlease upgrade to 1.0.1.\n\n### Workarounds\n\nYou can set the `matrixHandler.eventCacheSize` config value to `0` to workaround this bug. However, this may impact performance.\n\n### Credits\n\nDiscovered and reported by [Val Lorentz](https://valentin-lorentz.fr/).\n\n### For more information\n\nIf you have any questions or comments about this advisory email us at [security@matrix.org](mailto:security@matrix.org).",
"id": "GHSA-c7hh-3v6c-fj4q",
"modified": "2023-08-04T17:26:07Z",
"published": "2023-08-04T17:26:07Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/matrix-org/matrix-appservice-irc/security/advisories/GHSA-c7hh-3v6c-fj4q"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-38700"
},
{
"type": "WEB",
"url": "https://github.com/matrix-org/matrix-appservice-irc/commit/8bbd2b69a16cbcbeffdd9b5c973fd89d61498d75"
},
{
"type": "PACKAGE",
"url": "https://github.com/matrix-org/matrix-appservice-irc"
},
{
"type": "WEB",
"url": "https://github.com/matrix-org/matrix-appservice-irc/releases/tag/1.0.1"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "matrix-appservice-irc events can be crafted to leak parts of targeted messages from other bridged rooms"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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