Vulnerability-Lookup

CNVD-2021-32641

Vulnerability from cnvd - Published: 2021-05-06

Title

IBM i资源管理错误漏洞

Description

IBM i是美国IBM公司的一套运行在IBM Power Systems和IBM PureSystems中的操作系统。 IBM i SMTP存在安全漏洞，攻击者可利用该漏洞消耗未必要的网络带宽和磁盘空间，并发送垃圾邮件。

Severity

中

Patch Name

IBM i资源管理错误漏洞的补丁

Patch Description

IBM i是美国IBM公司的一套运行在IBM Power Systems和IBM PureSystems中的操作系统。 IBM i SMTP存在安全漏洞，攻击者可利用该漏洞消耗未必要的网络带宽和磁盘空间，并发送垃圾邮件。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接：https://www.ibm.com/support/pages/node/6445505

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-20501

Impacted products

Name
['IBM IBM i 7.2', 'IBM IBM i 7.3', 'IBM IBM i 7.4', 'IBM IBM i 7.1']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-20501",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-20501"
    }
  },
  "description": "IBM i\u662f\u7f8e\u56fdIBM\u516c\u53f8\u7684\u4e00\u5957\u8fd0\u884c\u5728IBM Power Systems\u548cIBM PureSystems\u4e2d\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nIBM i SMTP\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6d88\u8017\u672a\u5fc5\u8981\u7684\u7f51\u7edc\u5e26\u5bbd\u548c\u78c1\u76d8\u7a7a\u95f4\uff0c\u5e76\u53d1\u9001\u5783\u573e\u90ae\u4ef6\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1ahttps://www.ibm.com/support/pages/node/6445505",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-32641",
  "openTime": "2021-05-06",
  "patchDescription": "IBM i\u662f\u7f8e\u56fdIBM\u516c\u53f8\u7684\u4e00\u5957\u8fd0\u884c\u5728IBM Power Systems\u548cIBM PureSystems\u4e2d\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nIBM i SMTP\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6d88\u8017\u672a\u5fc5\u8981\u7684\u7f51\u7edc\u5e26\u5bbd\u548c\u78c1\u76d8\u7a7a\u95f4\uff0c\u5e76\u53d1\u9001\u5783\u573e\u90ae\u4ef6\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "IBM i\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "IBM IBM i 7.2",
      "IBM IBM i 7.3",
      "IBM IBM i 7.4",
      "IBM IBM i 7.1"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-20501",
  "serverity": "\u4e2d",
  "submitTime": "2021-04-22",
  "title": "IBM i\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2021-20501 (GCVE-0-2021-20501)

Vulnerability from cvelistv5 – Published: 2021-04-21 12:05 – Updated: 2024-09-17 00:35

Summary

IBM i 7.1, 7.2, 7.3, and 7.4 SMTP allows a network attacker to send emails to non-existent local-domain recipients to the SMTP server, caused by using a non-default configuration. An attacker could exploit this vulnerability to consume unnecessary network bandwidth and disk space, and allow remote attackers to send spam email. IBM X-Force ID: 198056.

Severity

5.9 (Medium)


                        
                          CVSS:3.0/AV:N/C:N/S:U/AC:H/A:H/UI:N/I:N/PR:N/RC:C/E:U/RL:O

CWE

Denial of Service

Assigner

ibm mitre root

References

2 references

URL	Tags
https://www.ibm.com/support/pages/node/6445505	x_refsource_CONFIRM
https://exchange.xforce.ibmcloud.com/vulnerabilit…	vdb-entryx_refsource_XF

Impacted products

1 product

Vendor	Product	Version
IBM	i	Affected: 7.1 Affected: 7.2 Affected: 7.3 Affected: 7.4

Date Public

2021-04-20 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:45:44.342Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.ibm.com/support/pages/node/6445505"
          },
          {
            "name": "ibm-i-cve202120501-dos (198056)",
            "tags": [
              "vdb-entry",
              "x_refsource_XF",
              "x_transferred"
            ],
            "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/198056"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "i",
          "vendor": "IBM",
          "versions": [
            {
              "status": "affected",
              "version": "7.1"
            },
            {
              "status": "affected",
              "version": "7.2"
            },
            {
              "status": "affected",
              "version": "7.3"
            },
            {
              "status": "affected",
              "version": "7.4"
            }
          ]
        }
      ],
      "datePublic": "2021-04-20T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "IBM i 7.1, 7.2, 7.3, and 7.4 SMTP allows a network attacker to send emails to non-existent local-domain recipients to the SMTP server, caused by using a non-default configuration. An attacker could exploit this vulnerability to consume unnecessary network bandwidth and disk space, and allow remote attackers to send spam email. IBM X-Force ID: 198056."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "exploitCodeMaturity": "UNPROVEN",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "remediationLevel": "OFFICIAL_FIX",
            "reportConfidence": "CONFIRMED",
            "scope": "UNCHANGED",
            "temporalScore": 5.2,
            "temporalSeverity": "MEDIUM",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/C:N/S:U/AC:H/A:H/UI:N/I:N/PR:N/RC:C/E:U/RL:O",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Denial of Service",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-04-21T12:05:22.000Z",
        "orgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
        "shortName": "ibm"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.ibm.com/support/pages/node/6445505"
        },
        {
          "name": "ibm-i-cve202120501-dos (198056)",
          "tags": [
            "vdb-entry",
            "x_refsource_XF"
          ],
          "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/198056"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@us.ibm.com",
          "DATE_PUBLIC": "2021-04-20T00:00:00",
          "ID": "CVE-2021-20501",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "i",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "7.1"
                          },
                          {
                            "version_value": "7.2"
                          },
                          {
                            "version_value": "7.3"
                          },
                          {
                            "version_value": "7.4"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "IBM"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "IBM i 7.1, 7.2, 7.3, and 7.4 SMTP allows a network attacker to send emails to non-existent local-domain recipients to the SMTP server, caused by using a non-default configuration. An attacker could exploit this vulnerability to consume unnecessary network bandwidth and disk space, and allow remote attackers to send spam email. IBM X-Force ID: 198056."
            }
          ]
        },
        "impact": {
          "cvssv3": {
            "BM": {
              "A": "H",
              "AC": "H",
              "AV": "N",
              "C": "N",
              "I": "N",
              "PR": "N",
              "S": "U",
              "UI": "N"
            },
            "TM": {
              "E": "U",
              "RC": "C",
              "RL": "O"
            }
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Denial of Service"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.ibm.com/support/pages/node/6445505",
              "refsource": "CONFIRM",
              "title": "IBM Security Bulletin 6445505 (i)",
              "url": "https://www.ibm.com/support/pages/node/6445505"
            },
            {
              "name": "ibm-i-cve202120501-dos (198056)",
              "refsource": "XF",
              "title": "X-Force Vulnerability Report",
              "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/198056"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "9a959283-ebb5-44b6-b705-dcc2bbced522",
    "assignerShortName": "ibm",
    "cveId": "CVE-2021-20501",
    "datePublished": "2021-04-21T12:05:22.224Z",
    "dateReserved": "2020-12-17T00:00:00.000Z",
    "dateUpdated": "2024-09-17T00:35:46.205Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

Detection rules are retrieved from Rulezet.

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.

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.