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CNVD-2021-101863

Vulnerability from cnvd - Published: 2021-12-23

Title

Bentley View DWG文件解析越界读取信息泄露漏洞

Description

Bentley View是美国Bentley Systems公司的一个免费查看器。 Bentley View DWG文件解析存在越界读取信息泄露漏洞，该漏洞源于存在PDF文件的解析中缺乏对用户提供的数据的正确验证导致读取超过已分配缓冲区的末尾。攻击者可利用该漏洞越界读取敏感信息。

Severity

低

Patch Name

Bentley View DWG文件解析越界读取信息泄露漏洞的补丁

Patch Description

Bentley View是美国Bentley Systems公司的一个免费查看器。 Bentley View DWG文件解析存在越界读取信息泄露漏洞，该漏洞源于存在PDF文件的解析中缺乏对用户提供的数据的正确验证导致读取超过已分配缓冲区的末尾。攻击者可利用该漏洞越界读取敏感信息。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

厂商已发布了漏洞修复程序，请及时关注更新： https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0010

Reference

https://www.zerodayinitiative.com/advisories/ZDI-21-1491/

Impacted products

Name
Bentley Systems Bentley View <=10.16.02.*

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-34902",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-34902"
    }
  },
  "description": "Bentley View\u662f\u7f8e\u56fdBentley Systems\u516c\u53f8\u7684\u4e00\u4e2a\u514d\u8d39\u67e5\u770b\u5668\u3002\n\nBentley View DWG\u6587\u4ef6\u89e3\u6790\u5b58\u5728\u8d8a\u754c\u8bfb\u53d6\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5b58\u5728PDF\u6587\u4ef6\u7684\u89e3\u6790\u4e2d\u7f3a\u4e4f\u5bf9\u7528\u6237\u63d0\u4f9b\u7684\u6570\u636e\u7684\u6b63\u786e\u9a8c\u8bc1\u5bfc\u81f4\u8bfb\u53d6\u8d85\u8fc7\u5df2\u5206\u914d\u7f13\u51b2\u533a\u7684\u672b\u5c3e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8d8a\u754c\u8bfb\u53d6\u654f\u611f\u4fe1\u606f\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0010",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-101863",
  "openTime": "2021-12-23",
  "patchDescription": "Bentley View\u662f\u7f8e\u56fdBentley Systems\u516c\u53f8\u7684\u4e00\u4e2a\u514d\u8d39\u67e5\u770b\u5668\u3002\r\n\r\nBentley View DWG\u6587\u4ef6\u89e3\u6790\u5b58\u5728\u8d8a\u754c\u8bfb\u53d6\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5b58\u5728PDF\u6587\u4ef6\u7684\u89e3\u6790\u4e2d\u7f3a\u4e4f\u5bf9\u7528\u6237\u63d0\u4f9b\u7684\u6570\u636e\u7684\u6b63\u786e\u9a8c\u8bc1\u5bfc\u81f4\u8bfb\u53d6\u8d85\u8fc7\u5df2\u5206\u914d\u7f13\u51b2\u533a\u7684\u672b\u5c3e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8d8a\u754c\u8bfb\u53d6\u654f\u611f\u4fe1\u606f\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": "Bentley View DWG\u6587\u4ef6\u89e3\u6790\u8d8a\u754c\u8bfb\u53d6\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Bentley Systems Bentley View \u003c=10.16.02.*"
  },
  "referenceLink": "https://www.zerodayinitiative.com/advisories/ZDI-21-1491/",
  "serverity": "\u4f4e",
  "submitTime": "2021-12-12",
  "title": "Bentley View DWG\u6587\u4ef6\u89e3\u6790\u8d8a\u754c\u8bfb\u53d6\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e"
}

CVE-2021-34902 (GCVE-0-2021-34902)

Vulnerability from cvelistv5 – Published: 2022-01-13 21:43 – Updated: 2024-08-04 00:26

Summary

This vulnerability allows remote attackers to disclose sensitive information on affected installations of Bentley View 10.15.0.75. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of DWG files. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-14875.

Severity

3.3 (Low)


                        
                          CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CWE

CWE-125 - Out-of-bounds Read

Assigner

zdi mitre root

References

2 references

URL	Tags
https://www.zerodayinitiative.com/advisories/ZDI-…	x_refsource_MISC
https://www.bentley.com/en/common-vulnerability-e…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Bentley	View	Affected: 10.15.0.75

Credits

Mat Powell of Trend Micro Zero Day Initiative

Show details on NVD website

JSON

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{
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    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T00:26:55.208Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1491/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0010"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "product": "View",
          "vendor": "Bentley",
          "versions": [
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        }
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        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
            "version": "3.0"
          }
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      ],
      "providerMetadata": {
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      },
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          "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1491/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0010"
        }
      ],
      "x_legacyV4Record": {
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          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
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                  "product_data": [
                    {
                      "product_name": "View",
                      "version": {
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                          {
                            "version_value": "10.15.0.75"
                          }
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                },
                "vendor_name": "Bentley"
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            }
          ]
        },
        "impact": {
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        "references": {
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              "refsource": "MISC",
              "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-1491/"
            },
            {
              "name": "https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0010",
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              "url": "https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0010"
            }
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    "assignerShortName": "zdi",
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    "datePublished": "2022-01-13T21:43:34.000Z",
    "dateReserved": "2021-06-17T00:00:00.000Z",
    "dateUpdated": "2024-08-04T00:26:55.208Z",
    "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.