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GHSA-6C98-7X6W-RX39

Vulnerability from github – Published: 2022-05-24 17:41 – Updated: 2022-05-24 17:41

Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tencent WeChat 7.0.18. 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 WXAM Decoder. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-11580.

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{
  "affected": [],
  "aliases": [
    "CVE-2020-27874"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-119"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-02-10T23:15:00Z",
    "severity": "HIGH"
  },
  "details": "This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tencent WeChat 7.0.18. 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 WXAM Decoder. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-11580.",
  "id": "GHSA-6c98-7x6w-rx39",
  "modified": "2022-05-24T17:41:53Z",
  "published": "2022-05-24T17:41:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27874"
    },
    {
      "type": "WEB",
      "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-084"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2020-27874 (GCVE-0-2020-27874)

Vulnerability from cvelistv5 – Published: 2021-02-10 22:15 – Updated: 2024-08-04 16:25

Summary

Severity

8.8 (High)


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

CWE

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Assigner

zdi mitre root Scorecard

References

1 reference

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

Impacted products

1 product

Vendor	Product	Version
Tencent	WeChat	Affected: 7.0.18

Credits

Wen guang Jiao

Show details on NVD website

JSON

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    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T16:25:43.291Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
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              "x_transferred"
            ],
            "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-084/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "product": "WeChat",
          "vendor": "Tencent",
          "versions": [
            {
              "status": "affected",
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            }
          ]
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      ],
      "credits": [
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        }
      ],
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          "value": "This vulnerability allows remote attackers to execute arbitrary code on affected installations of Tencent WeChat 7.0.18. 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 WXAM Decoder. The issue results from the lack of proper validation of user-supplied data, which can result in a memory access past the end of an allocated object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-11580."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
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        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
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                      "product_name": "WeChat",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "7.0.18"
                          }
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                "vendor_name": "Tencent"
              }
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        "references": {
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            }
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  "cveMetadata": {
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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.

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.

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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.

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GHSA-6C98-7X6W-RX39

CVE-2020-27874 (GCVE-0-2020-27874)

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