gsd-2021-31893
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution.
Aliases
Aliases
CVE-2021-31893


To clipboard 

{
   GSD: {
      alias: "CVE-2021-31893",
      description: "A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution.",
      id: "GSD-2021-31893",
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-31893",
         ],
         details: "A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution.",
         id: "GSD-2021-31893",
         modified: "2023-12-13T01:23:13.225048Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "productcert@siemens.com",
            ID: "CVE-2021-31893",
            STATE: "PUBLIC",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "SIMATIC PCS 7 V8.2 and earlier",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "All versions",
                                    },
                                 ],
                              },
                           },
                           {
                              product_name: "SIMATIC PCS 7 V9.0",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "All versions < V9.0 SP3",
                                    },
                                 ],
                              },
                           },
                           {
                              product_name: "SIMATIC PDM",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "All versions < V9.2",
                                    },
                                 ],
                              },
                           },
                           {
                              product_name: "SIMATIC STEP 7 V5.X",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "All versions < V5.6 SP2 HF3",
                                    },
                                 ],
                              },
                           },
                           {
                              product_name: "SINAMICS STARTER (containing STEP 7 OEM version)",
                              version: {
                                 version_data: [
                                    {
                                       version_value: "All versions < V5.4 HF2",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "Siemens",
                  },
               ],
            },
         },
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  value: "A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution.",
               },
            ],
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf",
                  refsource: "MISC",
                  url: "https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf",
               },
            ],
         },
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [
                     {
                        children: [],
                        cpe_match: [
                           {
                              cpe23Uri: "cpe:2.3:o:siemens:simatic_pcs_firmware:*:*:*:*:*:*:*:*",
                              cpe_name: [],
                              versionEndIncluding: "8.2",
                              vulnerable: true,
                           },
                           {
                              cpe23Uri: "cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:-:*:*:*:*:*:*",
                              cpe_name: [],
                              vulnerable: true,
                           },
                           {
                              cpe23Uri: "cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:sp1:*:*:*:*:*:*",
                              cpe_name: [],
                              vulnerable: true,
                           },
                           {
                              cpe23Uri: "cpe:2.3:o:siemens:simatic_pcs_firmware:9.0:sp2:*:*:*:*:*:*",
                              cpe_name: [],
                              vulnerable: true,
                           },
                        ],
                        operator: "OR",
                     },
                     {
                        children: [],
                        cpe_match: [
                           {
                              cpe23Uri: "cpe:2.3:h:siemens:simatic_pcs:-:*:*:*:*:*:*:*",
                              cpe_name: [],
                              vulnerable: false,
                           },
                        ],
                        operator: "OR",
                     },
                  ],
                  cpe_match: [],
                  operator: "AND",
               },
               {
                  children: [
                     {
                        children: [],
                        cpe_match: [
                           {
                              cpe23Uri: "cpe:2.3:o:siemens:simatic_pdm_firmware:*:*:*:*:*:*:*:*",
                              cpe_name: [],
                              versionEndExcluding: "9.2",
                              vulnerable: true,
                           },
                        ],
                        operator: "OR",
                     },
                     {
                        children: [],
                        cpe_match: [
                           {
                              cpe23Uri: "cpe:2.3:h:siemens:simatic_pdm:-:*:*:*:*:*:*:*",
                              cpe_name: [],
                              vulnerable: false,
                           },
                        ],
                        operator: "OR",
                     },
                  ],
                  cpe_match: [],
                  operator: "AND",
               },
               {
                  children: [
                     {
                        children: [],
                        cpe_match: [
                           {
                              cpe23Uri: "cpe:2.3:o:siemens:simatic_step_7_firmware:*:*:*:*:*:*:*:*",
                              cpe_name: [],
                              versionEndIncluding: "5.6",
                              vulnerable: true,
                           },
                        ],
                        operator: "OR",
                     },
                     {
                        children: [],
                        cpe_match: [
                           {
                              cpe23Uri: "cpe:2.3:h:siemens:simatic_step_7:-:*:*:*:*:*:*:*",
                              cpe_name: [],
                              vulnerable: false,
                           },
                        ],
                        operator: "OR",
                     },
                  ],
                  cpe_match: [],
                  operator: "AND",
               },
               {
                  children: [
                     {
                        children: [],
                        cpe_match: [
                           {
                              cpe23Uri: "cpe:2.3:o:siemens:sinamics_starter_firmware:*:*:*:*:*:*:*:*",
                              cpe_name: [],
                              versionEndExcluding: "5.4",
                              vulnerable: true,
                           },
                           {
                              cpe23Uri: "cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:-:*:*:*:*:*:*",
                              cpe_name: [],
                              vulnerable: true,
                           },
                           {
                              cpe23Uri: "cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:hotfix_1:*:*:*:*:*:*",
                              cpe_name: [],
                              vulnerable: true,
                           },
                           {
                              cpe23Uri: "cpe:2.3:o:siemens:sinamics_starter_firmware:5.4:hotfix_2:*:*:*:*:*:*",
                              cpe_name: [],
                              vulnerable: true,
                           },
                        ],
                        operator: "OR",
                     },
                     {
                        children: [],
                        cpe_match: [
                           {
                              cpe23Uri: "cpe:2.3:h:siemens:sinamics_starter:-:*:*:*:*:*:*:*",
                              cpe_name: [],
                              vulnerable: false,
                           },
                        ],
                        operator: "OR",
                     },
                  ],
                  cpe_match: [],
                  operator: "AND",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "productcert@siemens.com",
               ID: "CVE-2021-31893",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "en",
                     value: "A vulnerability has been identified in SIMATIC PCS 7 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). The affected software contains a buffer overflow vulnerability while handling certain files that could allow a local attacker to trigger a denial-of-service condition or potentially lead to remote code execution.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-120",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "N/A",
                     refsource: "CONFIRM",
                     tags: [
                        "Patch",
                        "Vendor Advisory",
                     ],
                     url: "https://cert-portal.siemens.com/productcert/pdf/ssa-641963.pdf",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "LOW",
                  accessVector: "LOCAL",
                  authentication: "NONE",
                  availabilityImpact: "COMPLETE",
                  baseScore: 7.2,
                  confidentialityImpact: "COMPLETE",
                  integrityImpact: "COMPLETE",
                  vectorString: "AV:L/AC:L/Au:N/C:C/I:C/A:C",
                  version: "2.0",
               },
               exploitabilityScore: 3.9,
               impactScore: 10,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "HIGH",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "LOCAL",
                  availabilityImpact: "HIGH",
                  baseScore: 7.8,
                  baseSeverity: "HIGH",
                  confidentialityImpact: "HIGH",
                  integrityImpact: "HIGH",
                  privilegesRequired: "LOW",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  version: "3.1",
               },
               exploitabilityScore: 1.8,
               impactScore: 5.9,
            },
         },
         lastModifiedDate: "2021-08-06T14:03Z",
         publishedDate: "2021-07-13T11:15Z",
      },
   },
}


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