FKIE_CVE-2017-17790
Vulnerability from fkie_nvd - Published: 2017-12-20 09:29 - Updated: 2026-06-17 01:11
Severity
Summary
The lazy_initialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernel#open, which might allow Command Injection attacks, as demonstrated by a Resolv::Hosts::new argument beginning with a '|' character, a different vulnerability than CVE-2017-17405. NOTE: situations with untrusted input may be highly unlikely.
References
{
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"value": "The lazy_initialize function in lib/resolv.rb in Ruby through 2.4.3 uses Kernel#open, which might allow Command Injection attacks, as demonstrated by a Resolv::Hosts::new argument beginning with a \u0027|\u0027 character, a different vulnerability than CVE-2017-17405. NOTE: situations with untrusted input may be highly unlikely."
},
{
"lang": "es",
"value": "La funci\u00f3n lazy_initialize en lib/resolv.rb en Ruby hasta la versi\u00f3n 2.4.3 utiliza Kernel#open, lo que podr\u00eda permitir ataques de inyecci\u00f3n de comandos, tal y como demuestra un argumento Resolv::Hosts::new que comience con un car\u00e1cter \"|\". Esta es una vulnerabilidad diferente a CVE-2017-17405. NOTA: es altamente improbable que se den situaciones con entradas no fiables."
}
],
"id": "CVE-2017-17790",
"lastModified": "2026-06-17T01:11:39.223",
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"published": "2017-12-20T09:29:01.477",
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"url": "https://github.com/ruby/ruby/pull/1777"
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{
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"url": "https://lists.debian.org/debian-lts-announce/2017/12/msg00024.html"
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"url": "https://www.debian.org/security/2018/dsa-4259"
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"url": "https://access.redhat.com/errata/RHSA-2018:0378"
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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.
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- 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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