GHSA-FPV6-F8JW-RC3R
Vulnerability from github – Published: 2021-09-23 23:17 – Updated: 2022-08-15 20:07Impact
Elvish's backend for the experimental web UI (started by elvish -web) hosts an endpoint that allows executing the code sent from the web UI.
The backend does not check the origin of requests correctly. As a result, if the user has the web UI backend open and visits a compromised or malicious website, the website can send arbitrary code to the endpoint in localhost.
Patches
All Elvish releases since 0.14.0 no longer include the experimental web UI, although it is still possible for the user to build a version from source that includes it.
The issue can be patched for previous versions by removing the web UI (found in web, pkg/web or pkg/prog/web, depending on the exact version).
Workarounds
Do not use the experimental web UI.
For more information
If you have any questions or comments about this advisory, please email xiaqqaix@gmail.com.
{
"affected": [
{
"package": {
"ecosystem": "Go",
"name": "github.com/elves/elvish"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.14.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-41088"
],
"database_specific": {
"cwe_ids": [
"CWE-346",
"CWE-668"
],
"github_reviewed": true,
"github_reviewed_at": "2021-09-23T21:06:47Z",
"nvd_published_at": "2021-09-23T20:15:00Z",
"severity": "HIGH"
},
"details": "### Impact\n\nElvish\u0027s backend for the experimental web UI (started by `elvish -web`) hosts an endpoint that allows executing the code sent from the web UI.\n\nThe backend does not check the origin of requests correctly. As a result, if the user has the web UI backend open and visits a compromised or malicious website, the website can send arbitrary code to the endpoint in localhost.\n\n### Patches\n\nAll Elvish releases since 0.14.0 no longer include the experimental web UI, although it is still possible for the user to build a version from source that includes it.\n\nThe issue can be patched for previous versions by removing the web UI (found in web, pkg/web or pkg/prog/web, depending on the exact version).\n\n### Workarounds\n\nDo not use the experimental web UI.\n\n### For more information\n\nIf you have any questions or comments about this advisory, please email xiaqqaix@gmail.com.",
"id": "GHSA-fpv6-f8jw-rc3r",
"modified": "2022-08-15T20:07:49Z",
"published": "2021-09-23T23:17:33Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/elves/elvish/security/advisories/GHSA-fpv6-f8jw-rc3r"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-41088"
},
{
"type": "WEB",
"url": "https://github.com/elves/elvish/commit/ccc2750037bbbfafe9c1b7a78eadd3bd16e81fe5"
},
{
"type": "PACKAGE",
"url": "https://github.com/elves/elvish"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Elvish vulnerable to remote code execution via the web UI backend"
}
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.