FKIE_CVE-2011-3186
Vulnerability from fkie_nvd - Published: 2011-08-29 18:55 - Updated: 2026-06-16 23:32
Severity
Summary
CRLF injection vulnerability in actionpack/lib/action_controller/response.rb in Ruby on Rails 2.3.x before 2.3.13 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the Content-Type header.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| rubyonrails | rails | 2.3.2 | |
| rubyonrails | rails | 2.3.3 | |
| rubyonrails | rails | 2.3.4 | |
| rubyonrails | rails | 2.3.9 | |
| rubyonrails | rails | 2.3.10 | |
| rubyonrails | rails | 2.3.11 | |
| rubyonrails | rails | 2.3.12 |
{
"affected": [
{
"affectedData": [
{
"product": "n/a",
"vendor": "n/a",
"versions": [
{
"status": "affected",
"version": "n/a"
}
]
}
],
"source": "secalert@redhat.com"
}
],
"configurations": [
{
"nodes": [
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"criteria": "cpe:2.3:a:rubyonrails:rails:2.3.2:*:*:*:*:*:*:*",
"matchCriteriaId": "D1467583-23E9-4E2B-982D-80A356174BB6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:rubyonrails:rails:2.3.3:*:*:*:*:*:*:*",
"matchCriteriaId": "4DC784C0-5618-4C32-8C17-BE7041656E14",
"vulnerable": true
},
{
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},
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"vulnerable": true
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{
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{
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"negate": false,
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "CRLF injection vulnerability in actionpack/lib/action_controller/response.rb in Ruby on Rails 2.3.x before 2.3.13 allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks via the Content-Type header."
},
{
"lang": "es",
"value": "Vulnerabilidad de falsificaci\u00f3n de petici\u00f3n en sitios cruzados (CRLF) actionpack/lib/action_controller/response.rb en Ruby on Rails v2.3.x antes dev 2.3.13 permite a atacantes remotos inyectar cabeceras HTTP de su elecci\u00f3n y llevar a cabo ataques HTTP de divisi\u00f3n de respuesta a trav\u00e9s de la cabecera Content-Type."
}
],
"id": "CVE-2011-3186",
"lastModified": "2026-06-16T23:32:49.650",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
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"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
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"published": "2011-08-29T18:55:01.643",
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"sourceIdentifier": "secalert@redhat.com",
"vulnStatus": "Modified",
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"source": "nvd@nist.gov",
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]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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