GSD-2018-3779
Vulnerability from gsd - Updated: 2018-08-09 00:00Details
The gem duplicates official `activesupport` (no hyphen) code, but adds a
compiled extension. The extension attempts to resolve a base64 encoded
domain, downloads a payload, and executes.
Replace this gem with the official `activesupport` gem.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2018-3779",
"description": "active-support ruby gem 5.2.0 could allow a remote attacker to execute arbitrary code on the system, caused by containing a malicious backdoor. An attacker could exploit this vulnerability to execute arbitrary code on the system.",
"id": "GSD-2018-3779"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "active-support",
"purl": "pkg:gem/active-support"
}
}
],
"aliases": [
"CVE-2018-3779",
"GHSA-2j55-pcw5-x4h2"
],
"details": "The gem duplicates official `activesupport` (no hyphen) code, but adds a\ncompiled extension. The extension attempts to resolve a base64 encoded\ndomain, downloads a payload, and executes.\n\nReplace this gem with the official `activesupport` gem.\n",
"id": "GSD-2018-3779",
"modified": "2018-08-09T00:00:00.000Z",
"published": "2018-08-09T00:00:00.000Z",
"references": [
{
"type": "WEB",
"url": "https://hackerone.com/reports/392311"
},
{
"type": "WEB",
"url": "https://github.com/rubygems/rubygems.org/pull/1762"
}
],
"schema_version": "1.4.0",
"summary": "Malicious ruby gem - active-support"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "support@hackerone.com",
"ID": "CVE-2018-3779",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "active-support ruby gem",
"version": {
"version_data": [
{
"version_value": "5.2.0"
}
]
}
}
]
},
"vendor_name": "HackerOne"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "active-support ruby gem 5.2.0 could allow a remote attacker to execute arbitrary code on the system, caused by containing a malicious backdoor. An attacker could exploit this vulnerability to execute arbitrary code on the system."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Command Injection - Generic (CWE-77)"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://hackerone.com/reports/392311",
"refsource": "MISC",
"url": "https://hackerone.com/reports/392311"
}
]
}
},
"github.com/rubysec/ruby-advisory-db": {
"cve": "2018-3779",
"date": "2018-08-09",
"description": "The gem duplicates official `activesupport` (no hyphen) code, but adds a\ncompiled extension. The extension attempts to resolve a base64 encoded\ndomain, downloads a payload, and executes.\n\nReplace this gem with the official `activesupport` gem.\n",
"gem": "active-support",
"ghsa": "2j55-pcw5-x4h2",
"related": {
"url": [
"https://github.com/rubygems/rubygems.org/pull/1762"
]
},
"title": "Malicious ruby gem - active-support",
"url": "https://hackerone.com/reports/392311"
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003e=0",
"affected_versions": "All versions",
"cvss_v2": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
"cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-78",
"CWE-937"
],
"date": "2021-01-08",
"description": "active-support ruby gem could allow a remote attacker to execute arbitrary code on the system, caused by containing a malicious backdoor. An attacker could exploit this vulnerability to execute arbitrary code on the system.",
"fixed_versions": [],
"identifier": "CVE-2018-3779",
"identifiers": [
"GHSA-2j55-pcw5-x4h2",
"CVE-2018-3779"
],
"not_impacted": "",
"package_slug": "gem/active-support",
"pubdate": "2018-08-13",
"solution": "Unfortunately, there is no solution available yet.",
"title": "Improper Neutralization of Special Elements used in an OS Command (\u0027OS Command Injection\u0027)",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2018-3779",
"https://hackerone.com/reports/392311",
"https://github.com/advisories/GHSA-2j55-pcw5-x4h2"
],
"uuid": "a8ce6a79-6cc4-48e0-8661-49361476e851"
},
{
"affected_range": "=5.2.0",
"affected_versions": "Version 5.2.0",
"cvss_v2": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
"cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-937"
],
"date": "2019-10-09",
"description": "active-support could allow a remote attacker to execute arbitrary code on the system, caused by containing a malicious backdoor. An attacker could exploit this vulnerability to execute arbitrary code on the system.",
"fixed_versions": [
"5.2.1"
],
"identifier": "CVE-2018-3779",
"identifiers": [
"CVE-2018-3779"
],
"not_impacted": "All versions before 5.2.0, all versions after 5.2.0",
"package_slug": "gem/activesupport",
"pubdate": "2018-08-10",
"solution": "Upgrade to version 5.2.1 or above.",
"title": "Command Injection",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2018-3779",
"https://hackerone.com/reports/392311"
],
"uuid": "d87e3ad2-67b8-4874-981d-924d1e43b959"
}
]
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:activesupport_project:activesupport:5.2.0:*:*:*:*:ruby:*:*",
"cpe_name": [],
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "cve-assignments@hackerone.com",
"ID": "CVE-2018-3779"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "active-support ruby gem 5.2.0 could allow a remote attacker to execute arbitrary code on the system, caused by containing a malicious backdoor. An attacker could exploit this vulnerability to execute arbitrary code on the system."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://hackerone.com/reports/392311",
"refsource": "MISC",
"tags": [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://hackerone.com/reports/392311"
}
]
}
},
"impact": {
"baseMetricV2": {
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 10.0,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "HIGH",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.0"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9
}
},
"lastModifiedDate": "2019-10-09T23:40Z",
"publishedDate": "2018-08-10T21:29Z"
}
}
}
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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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