Overview
- Description
- Traefik is an open source HTTP reverse proxy and load balancer. When Traefik is configured to use the `HTTPChallenge` to generate and renew the Let's Encrypt TLS certificates, the delay authorized to solve the challenge (50 seconds) can be exploited by attackers to achieve a `slowloris attack`. This vulnerability has been patch in version 2.10.6 and 3.0.0-beta5. Users are advised to upgrade. Users unable to upgrade should replace the `HTTPChallenge` with the `TLSChallenge` or the `DNSChallenge`.
- Source
- security-advisories@github.com
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 5.9
- Impact score
- 3.6
- Exploitability score
- 2.2
- Vector string
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity
- MEDIUM
Weaknesses
- security-advisories@github.com
- CWE-772
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "AB0C6F34-0937-44ED-B248-F7B63DDA7820",
"versionEndIncluding": "2.10.5"
},
{
"criteria": "cpe:2.3:a:traefik:traefik:3.0.0:beta1:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "376EAF9B-E994-4268-9704-0A45EA30270F"
},
{
"criteria": "cpe:2.3:a:traefik:traefik:3.0.0:beta2:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "F3D08335-C291-4623-B80C-3B14C4D1FA32"
},
{
"criteria": "cpe:2.3:a:traefik:traefik:3.0.0:beta3:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "21033CEE-CEF5-4B0D-A565-4A6FC764AA6D"
},
{
"criteria": "cpe:2.3:a:traefik:traefik:3.0.0:beta4:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "4B5B7BC8-0BBF-48DC-86B1-FC3D7CB8D5AD"
}
],
"operator": "OR"
}
]
}
]