GSD-2015-7541

Vulnerability from gsd - Updated: 2016-01-04 00:00
Details
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
Aliases
CVE-2015-7541
To clipboard 

{
  "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"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "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": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "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"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "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": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:colorscore_project:colorscore:*:*:*:*:*:ruby:*:*",
                "cpe_name": [],
                "versionEndIncluding": "0.0.4",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2015-7541"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "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"
    }
  }
}



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