Vulnerability-Lookup

CNVD-2021-40776

Vulnerability from cnvd - Published: 2021-06-10

Title

Opentext OpenText Brava! 信息泄露漏洞

Description

Opentext OpenText Brava!是加拿大Opentext公司的一款基于浏览器的通用文档查看器。该产品支持查看、注释和编辑多种类型的文档。Desk是个人开发者的一款写作，博客和记笔记应用。 OpenText Brava!存在安全漏洞，该漏洞源于在对对象执行操作之前未能验证对象的存在性，具体的缺陷存在于PDF文件的解析中。攻击者可利用该漏洞可以利用这个漏洞在当前进程的上下文中执行代码。

Severity

低

Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： https://attackerkb.com/topics/ssK1C0J6sd/cve-2021-31506

Reference

https://www.zerodayinitiative.com/advisories/ZDI-21-647/

Impacted products

Name
OpenText OpenText Brava!

Show details on source website

JSON

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-31506"
    }
  },
  "description": "Opentext OpenText Brava!\u662f\u52a0\u62ff\u5927Opentext\u516c\u53f8\u7684\u4e00\u6b3e\u57fa\u4e8e\u6d4f\u89c8\u5668\u7684\u901a\u7528\u6587\u6863\u67e5\u770b\u5668\u3002\u8be5\u4ea7\u54c1\u652f\u6301\u67e5\u770b\u3001\u6ce8\u91ca\u548c\u7f16\u8f91\u591a\u79cd\u7c7b\u578b\u7684\u6587\u6863\u3002Desk\u662f\u4e2a\u4eba\u5f00\u53d1\u8005\u7684\u4e00\u6b3e\u5199\u4f5c\uff0c\u535a\u5ba2\u548c\u8bb0\u7b14\u8bb0\u5e94\u7528\u3002\n\nOpenText Brava!\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u5bf9\u5bf9\u8c61\u6267\u884c\u64cd\u4f5c\u4e4b\u524d\u672a\u80fd\u9a8c\u8bc1\u5bf9\u8c61\u7684\u5b58\u5728\u6027\uff0c\u5177\u4f53\u7684\u7f3a\u9677\u5b58\u5728\u4e8ePDF\u6587\u4ef6\u7684\u89e3\u6790\u4e2d\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u53ef\u4ee5\u5229\u7528\u8fd9\u4e2a\u6f0f\u6d1e\u5728\u5f53\u524d\u8fdb\u7a0b\u7684\u4e0a\u4e0b\u6587\u4e2d\u6267\u884c\u4ee3\u7801\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttps://attackerkb.com/topics/ssK1C0J6sd/cve-2021-31506",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-40776",
  "openTime": "2021-06-10",
  "products": {
    "product": "OpenText OpenText Brava!"
  },
  "referenceLink": "https://www.zerodayinitiative.com/advisories/ZDI-21-647/",
  "serverity": "\u4f4e",
  "submitTime": "2021-06-09",
  "title": "Opentext OpenText Brava! \u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e"
}

CVE-2021-31506 (GCVE-0-2021-31506)

Vulnerability from cvelistv5 – Published: 2021-06-29 14:33 – Updated: 2024-08-03 23:03

Summary

This vulnerability allows remote attackers to disclose sensitive information on affected installations of OpenText Brava! Desktop Build 16.6.4.55. 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 PDF 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 data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-13674.

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

1 reference

URL	Tags
https://www.zerodayinitiative.com/advisories/ZDI-…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
OpenText	Brava! Desktop	Affected: Build 16.6.4.55

Credits

Michael DePlante (@izobashi) of Trend Micro's Zero Day Initiative

Show details on NVD website

JSON

To clipboard

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      "metrics": [
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            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 3.3,
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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.