Vulnerability-Lookup

CNVD-2021-101881

Vulnerability from cnvd - Published: 2021-12-23

Title

Bentley View缓冲区错误漏洞

Description

Bentley View是美国Bentley Systems公司的一个免费查看器。 Bentley View存在缓冲区溢出漏洞，该漏洞源于处理JT文件时的边界错误。攻击者可利用该漏洞创建一个专门制作的JT文件，诱使受害者使用受影响的软件打开文件，在目标系统上触发越界写入和执行任意代码。

Severity

高

Patch Name

Bentley View缓冲区错误漏洞的补丁

Patch Description

Bentley View是美国Bentley Systems公司的一个免费查看器。 Bentley View存在缓冲区溢出漏洞，该漏洞源于处理JT文件时的边界错误。攻击者可利用该漏洞创建一个专门制作的JT文件，诱使受害者使用受影响的软件打开文件，在目标系统上触发越界写入和执行任意代码。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-2021-0005

Reference

https://www.cybersecurity-help.cz/vdb/SB2021120823

Impacted products

Name
Bentley Systems Bentley View <10.16.01.56

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-34938",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-34938"
    }
  },
  "description": "Bentley View\u662f\u7f8e\u56fdBentley Systems\u516c\u53f8\u7684\u4e00\u4e2a\u514d\u8d39\u67e5\u770b\u5668\u3002\n\nBentley View\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5904\u7406JT\u6587\u4ef6\u65f6\u7684\u8fb9\u754c\u9519\u8bef\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u521b\u5efa\u4e00\u4e2a\u4e13\u95e8\u5236\u4f5c\u7684JT\u6587\u4ef6\uff0c\u8bf1\u4f7f\u53d7\u5bb3\u8005\u4f7f\u7528\u53d7\u5f71\u54cd\u7684\u8f6f\u4ef6\u6253\u5f00\u6587\u4ef6\uff0c\u5728\u76ee\u6807\u7cfb\u7edf\u4e0a\u89e6\u53d1\u8d8a\u754c\u5199\u5165\u548c\u6267\u884c\u4efb\u610f\u4ee3\u7801\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-2021-0005",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-101881",
  "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\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5904\u7406JT\u6587\u4ef6\u65f6\u7684\u8fb9\u754c\u9519\u8bef\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u521b\u5efa\u4e00\u4e2a\u4e13\u95e8\u5236\u4f5c\u7684JT\u6587\u4ef6\uff0c\u8bf1\u4f7f\u53d7\u5bb3\u8005\u4f7f\u7528\u53d7\u5f71\u54cd\u7684\u8f6f\u4ef6\u6253\u5f00\u6587\u4ef6\uff0c\u5728\u76ee\u6807\u7cfb\u7edf\u4e0a\u89e6\u53d1\u8d8a\u754c\u5199\u5165\u548c\u6267\u884c\u4efb\u610f\u4ee3\u7801\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\u7f13\u51b2\u533a\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Bentley Systems Bentley View \u003c10.16.01.56"
  },
  "referenceLink": "https://www.cybersecurity-help.cz/vdb/SB2021120823",
  "serverity": "\u9ad8",
  "submitTime": "2021-12-12",
  "title": "Bentley View\u7f13\u51b2\u533a\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2021-34938 (GCVE-0-2021-34938)

Vulnerability from cvelistv5 – Published: 2022-01-13 21:44 – Updated: 2024-08-04 00:26

Summary

This vulnerability allows remote attackers to execute arbitrary code 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 JT files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14995.

Severity

7.8 (High)


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

CWE

CWE-122 - Heap-based Buffer Overflow

Assigner

zdi mitre root

References

2 references

URL	Tags
https://www.bentley.com/en/common-vulnerability-e…	x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-…	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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            ],
            "url": "https://www.bentley.com/en/common-vulnerability-exposure/BE-2021-0005"
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            "tags": [
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        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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        }
      ],
      "metrics": [
        {
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            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
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          ],
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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.