RUSTSEC-2021-0081 (CVE-2021-38512)
Vulnerability from osv_rustsec – Published: 2021-06-16 12:00 – Updated: 2023-06-13 13:10 – Source websiteAffected versions of this crate did not properly detect invalid requests that could allow HTTP/1 request smuggling (HRS) attacks when running alongside a vulnerable front-end proxy server. This can result in leaked internal and/or user data, including credentials, when the front-end proxy is also vulnerable.
Popular front-end proxies and load balancers already mitigate HRS attacks so it is recommended that they are also kept up to date; check your specific set up. You should upgrade even if the front-end proxy receives exclusively HTTP/2 traffic and connects to the back-end using HTTP/1; several downgrade attacks are known that can also expose HRS vulnerabilities.
| URL | Type | |
|---|---|---|
{
"affected": [
{
"database_specific": {
"categories": [],
"cvss": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"informational": null
},
"ecosystem_specific": {
"affected_functions": null,
"affects": {
"arch": [],
"functions": [],
"os": []
}
},
"package": {
"ecosystem": "crates.io",
"name": "actix-http",
"purl": "pkg:cargo/actix-http"
},
"ranges": [
{
"events": [
{
"introduced": "0.0.0-0"
},
{
"fixed": "2.2.1"
},
{
"introduced": "3.0.0-0"
},
{
"fixed": "3.0.0-beta.9"
}
],
"type": "SEMVER"
}
],
"versions": []
}
],
"aliases": [
"CVE-2021-38512",
"GHSA-8928-2fgm-6x9x"
],
"database_specific": {
"license": "CC0-1.0"
},
"details": "Affected versions of this crate did not properly detect invalid requests that could allow HTTP/1 request smuggling (HRS) attacks when running alongside a vulnerable front-end proxy server. This can result in leaked internal and/or user data, including credentials, when the front-end proxy is also vulnerable.\n\nPopular front-end proxies and load balancers already mitigate HRS attacks so it is recommended that they are also kept up to date; check your specific set up. You should upgrade even if the front-end proxy receives exclusively HTTP/2 traffic and connects to the back-end using HTTP/1; several downgrade attacks are known that can also expose HRS vulnerabilities.",
"id": "RUSTSEC-2021-0081",
"modified": "2023-06-13T13:10:24Z",
"published": "2021-06-16T12:00:00Z",
"references": [
{
"type": "PACKAGE",
"url": "https://crates.io/crates/actix-http"
},
{
"type": "ADVISORY",
"url": "https://rustsec.org/advisories/RUSTSEC-2021-0081.html"
}
],
"related": [],
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "Potential request smuggling capabilities due to lack of input validation"
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
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