ghsa-m3r7-8gw7-qwvc
Vulnerability from github
Summary
A vulnerability exists in the FAQ Record component where a privileged attacker can trigger a file download on a victim's machine upon page visit by embedding it in an element without user interaction or explicit consent.
Details
In http://localhost/admin/index.php?action=editentry&id=20&lang=en, where a FAQ record is either created or edited, an attacker can insert an iframe, as "source code", pointing to a prior "malicious" attachment that the attacker has uploaded via FAQ "new attachment" upload, such that any page visits to this FAQ will trigger an automated download (from the edit screen, download is automated; from the faq page view as a normal user, depending on the browser, a pop up confirmation may be presented before the actual download. Firebox browser, for instance, does not require any interactions).
PoC
-
create a new FAQ record and upload a "malicious" file - in my case, I uploaded an eicar file. take note of the uri, ie
<iframe "index.php?action=attachment&id=2"
-
in the FAQ record, insert a "source code" blob using the "< >" button
- insert in the following snippet: and save FAQ record
- once the edit page reloads, the malicious code will be downloaded onto the local machine without user interaction:
(uploaded a POC for easy demonstration: https://roy.demo.phpmyfaq.de/admin/index.php?action=editentry&id=20&lang=en although a fresh installation overwrites this demo instance every 24 hours)
(as a logged in normal user, visit: https://roy.demo.phpmyfaq.de/content/1/20/en/20.html)
Impact
Malicious code or binaries could be dropped on visitors' machines when visiting the FAQ platform. Take a worm or ransomware for instance.
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "thorsten/phpmyfaq"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.2.10"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-55889"
],
"database_specific": {
"cwe_ids": [
"CWE-451"
],
"github_reviewed": true,
"github_reviewed_at": "2024-12-13T20:36:08Z",
"nvd_published_at": "2024-12-13T14:15:22Z",
"severity": "MODERATE"
},
"details": "### Summary\nA vulnerability exists in the FAQ Record component where a privileged attacker can trigger a file download on a victim\u0027s machine upon page visit by embedding it in an \u003ciframe\u003e element without user interaction or explicit consent. \n\n### Details\nIn http://localhost/admin/index.php?action=editentry\u0026id=20\u0026lang=en, where a FAQ record is either created or edited, an attacker can insert an iframe, as \"source code\", pointing to a prior \"malicious\" attachment that the attacker has uploaded via FAQ \"new attachment\" upload, such that any page visits to this FAQ will trigger an automated download (from the edit screen, download is automated; from the faq page view as a normal user, depending on the browser, a pop up confirmation may be presented before the actual download. Firebox browser, for instance, does not require any interactions).\n\n\n### PoC\n\n1. create a new FAQ record and upload a \"malicious\" file - in my case, I uploaded an eicar file. take note of the uri, ie \u003cp\u003e\u003ciframe \"index.php?action=attachment\u0026amp;id=2\"\n\n\n3. in the FAQ record, insert a \"source code\" blob using the \"\u003c \u003e\" button\n4. insert in the following snippet: \u003cp\u003e\u003ciframe src=\"index.php?action=attachment\u0026amp;id=2\"\u003e\u003c/iframe\u003e\u003c/p\u003e and save FAQ record\n5. once the edit page reloads, the malicious code will be downloaded onto the local machine without user interaction:\n\n\n(uploaded a POC for easy demonstration: https://roy.demo.phpmyfaq.de/admin/index.php?action=editentry\u0026id=20\u0026lang=en\nalthough a fresh installation overwrites this demo instance every 24 hours)\n\n(as a logged in normal user, visit: https://roy.demo.phpmyfaq.de/content/1/20/en/20.html)\n\n### Impact\nMalicious code or binaries could be dropped on visitors\u0027 machines when visiting the FAQ platform. Take a worm or ransomware for instance. \n",
"id": "GHSA-m3r7-8gw7-qwvc",
"modified": "2024-12-13T20:36:08Z",
"published": "2024-12-13T20:36:08Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/thorsten/phpMyFAQ/security/advisories/GHSA-m3r7-8gw7-qwvc"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-55889"
},
{
"type": "WEB",
"url": "https://github.com/thorsten/phpMyFAQ/commit/fa0f7368dc3288eedb1915def64ef8fb270f711d"
},
{
"type": "PACKAGE",
"url": "https://github.com/thorsten/phpMyFAQ"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "thorsten/phpmyfaq Unintended File Download Triggered by Embedded Frames"
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.