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GSD-2015-7541
Vulnerability from gsd - Updated: 2016-01-04 00:00Details
The contents of the `image_path`, `colors`, and `depth` variables generated
from possibly user-supplied input are passed directly to the shell via
`convert ...`.
If a user supplies a value that includes shell metacharacters such as ';', an
attacker may be able to execute shell commands on the remote system as the
user id of the Ruby process.
To resolve this issue, the aforementioned variables (especially `image_path`)
must be sanitized for shell metacharacters.
Aliases
{
"GSD": {
"alias": "CVE-2015-7541",
"description": "The initialize method in the Histogram class in lib/colorscore/histogram.rb in the colorscore gem before 0.0.5 for Ruby allows context-dependent attackers to execute arbitrary code via shell metacharacters in the (1) image_path, (2) colors, or (3) depth variable.",
"id": "GSD-2015-7541"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"affected": [
{
"package": {
"ecosystem": "RubyGems",
"name": "colorscore",
"purl": "pkg:gem/colorscore"
}
}
],
"aliases": [
"CVE-2015-7541",
"OSVDB-132516",
"GHSA-73qw-ww62-m54x"
],
"details": "The contents of the `image_path`, `colors`, and `depth` variables generated\nfrom possibly user-supplied input are passed directly to the shell via\n`convert ...`.\n\nIf a user supplies a value that includes shell metacharacters such as \u0027;\u0027, an\nattacker may be able to execute shell commands on the remote system as the\nuser id of the Ruby process.\n\nTo resolve this issue, the aforementioned variables (especially `image_path`)\nmust be sanitized for shell metacharacters.\n",
"id": "GSD-2015-7541",
"modified": "2016-01-04T00:00:00.000Z",
"published": "2016-01-04T00:00:00.000Z",
"references": [
{
"type": "WEB",
"url": "http://seclists.org/oss-sec/2016/q1/17"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": 10.0,
"type": "CVSS_V3"
}
],
"summary": "colorscore Gem for Ruby lib/colorscore/histogram.rb Arbitrary Command Injection"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2015-7541",
"STATE": "PUBLIC"
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"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
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"value": "The initialize method in the Histogram class in lib/colorscore/histogram.rb in the colorscore gem before 0.0.5 for Ruby allows context-dependent attackers to execute arbitrary code via shell metacharacters in the (1) image_path, (2) colors, or (3) depth variable."
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"name": "http://rubysec.com/advisories/CVE-2015-7541/",
"refsource": "MISC",
"url": "http://rubysec.com/advisories/CVE-2015-7541/"
},
{
"name": "[oss-security] 20160104 Remote Command Injection in Ruby Gem colorscore \u003c=0.0.4",
"refsource": "MLIST",
"url": "http://www.openwall.com/lists/oss-security/2016/01/05/2"
},
{
"name": "https://github.com/quadule/colorscore/commit/570b5e854cecddd44d2047c44126aed951b61718",
"refsource": "CONFIRM",
"url": "https://github.com/quadule/colorscore/commit/570b5e854cecddd44d2047c44126aed951b61718"
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]
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},
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"cve": "2015-7541",
"cvss_v3": 10.0,
"date": "2016-01-04",
"description": "The contents of the `image_path`, `colors`, and `depth` variables generated\nfrom possibly user-supplied input are passed directly to the shell via\n`convert ...`.\n\nIf a user supplies a value that includes shell metacharacters such as \u0027;\u0027, an\nattacker may be able to execute shell commands on the remote system as the\nuser id of the Ruby process.\n\nTo resolve this issue, the aforementioned variables (especially `image_path`)\nmust be sanitized for shell metacharacters.\n",
"gem": "colorscore",
"ghsa": "73qw-ww62-m54x",
"osvdb": 132516,
"patched_versions": [
"\u003e= 0.0.5"
],
"title": "colorscore Gem for Ruby lib/colorscore/histogram.rb Arbitrary Command Injection",
"url": "http://seclists.org/oss-sec/2016/q1/17"
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003c=0.0.4",
"affected_versions": "All versions up to 0.0.4",
"credit": "Dirk Zittersteyn (@DZittersteyn)",
"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:C/C:H/I:H/A:H",
"cwe_ids": [
"CWE-1035",
"CWE-77",
"CWE-937"
],
"date": "2016-01-18",
"description": "The contents of the `image_path`, `colors`, and `depth` variables generated from possibly user-supplied input are passed directly to the shell. If a user supplies a value that includes shell metacharacters such as \u0027;\u0027, an attacker may be able to execute shell commands on the remote system as the user id of the Ruby process. ",
"fixed_versions": [
"0.0.5"
],
"identifier": "CVE-2015-7541",
"identifiers": [
"CVE-2015-7541"
],
"not_impacted": "All versions after 0.0.4",
"package_slug": "gem/colorscore",
"pubdate": "2016-01-08",
"solution": "Upgrade to version 0.0.5 or above.",
"title": "Arbitrary Command Injection",
"urls": [
"http://seclists.org/oss-sec/2016/q1/17",
"https://github.com/quadule/colorscore/commit/570b5e854cecddd44d2047c44126aed951b61718"
],
"uuid": "c40816bd-14fd-4581-be2d-57172df989a0"
}
]
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
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"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:colorscore_project:colorscore:*:*:*:*:*:ruby:*:*",
"cpe_name": [],
"versionEndIncluding": "0.0.4",
"vulnerable": true
}
],
"operator": "OR"
}
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"ASSIGNER": "secalert@redhat.com",
"ID": "CVE-2015-7541"
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"data_type": "CVE",
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"description": {
"description_data": [
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"lang": "en",
"value": "The initialize method in the Histogram class in lib/colorscore/histogram.rb in the colorscore gem before 0.0.5 for Ruby allows context-dependent attackers to execute arbitrary code via shell metacharacters in the (1) image_path, (2) colors, or (3) depth variable."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-77"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "[oss-security] 20160104 Remote Command Injection in Ruby Gem colorscore \u003c=0.0.4",
"refsource": "MLIST",
"tags": [],
"url": "http://www.openwall.com/lists/oss-security/2016/01/05/2"
},
{
"name": "https://github.com/quadule/colorscore/commit/570b5e854cecddd44d2047c44126aed951b61718",
"refsource": "CONFIRM",
"tags": [
"Patch"
],
"url": "https://github.com/quadule/colorscore/commit/570b5e854cecddd44d2047c44126aed951b61718"
},
{
"name": "http://rubysec.com/advisories/CVE-2015-7541/",
"refsource": "MISC",
"tags": [],
"url": "http://rubysec.com/advisories/CVE-2015-7541/"
}
]
}
},
"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"
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 10.0,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"version": "3.0"
},
"exploitabilityScore": 3.9,
"impactScore": 6.0
}
},
"lastModifiedDate": "2016-01-18T11:55Z",
"publishedDate": "2016-01-08T21:59Z"
}
}
}