Overview
- Description
- Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 allows HTTP Response Splitting. If a program using WEBrick inserts untrusted input into the response header, an attacker can exploit it to insert a newline character to split a header, and inject malicious content to deceive clients. NOTE: this issue exists because of an incomplete fix for CVE-2017-17742, which addressed the CRLF vector, but did not address an isolated CR or an isolated LF.
- Source
- cve@mitre.org
- NVD status
- Modified
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 5.3
- Impact score
- 1.4
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 5
- Impact score
- 2.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:N/I:P/A:N
Weaknesses
- nvd@nist.gov
- CWE-74
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A6EFA741-C6E9-4362-AE58-785B0053A2A7",
"versionEndIncluding": "2.3.0"
},
{
"criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A2C45233-D18A-47C8-8D49-BB05ADD50D88",
"versionEndIncluding": "2.4.7",
"versionStartIncluding": "2.4.0"
},
{
"criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6E259007-36E1-418F-8493-A5A7928129F6",
"versionEndIncluding": "2.5.6",
"versionStartIncluding": "2.5.0"
},
{
"criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E746C3E0-0162-4487-AB58-2579B2BE1FD4",
"versionEndIncluding": "2.6.4",
"versionStartIncluding": "2.6.0"
}
],
"operator": "OR"
}
]
},
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43"
}
],
"operator": "OR"
}
]
}
]