Vulnerability-Lookup

CNVD-2020-38777

Vulnerability from cnvd - Published: 2020-07-13

Title

ZNC代码问题漏洞

Description

ZNC是一套允许用户从工作站登录到IRC服务器的IRC代理。 ZNC 1.8.0及后（1.8.1-rc1版本已修复）中存在代码问题漏洞。当echo-message未启用且没有网络时，攻击者可利用该漏洞造成应用程序崩溃（空指针逆向引用）。

Severity

低

Patch Name

ZNC代码问题漏洞的补丁

Patch Description

ZNC是一套允许用户从工作站登录到IRC服务器的IRC代理。 ZNC 1.8.0及后（1.8.1-rc1版本已修复）中存在代码问题漏洞。当echo-message未启用且没有网络时，攻击者可利用该漏洞造成应用程序崩溃（空指针逆向引用）。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://github.com/znc/znc/commit/2390ad111bde16a78c98ac44572090b33c3bd2d8

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-13775

Impacted products

Name
ZNC ZNC >=1.8.0，<=1.8.1-rc1

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-13775"
    }
  },
  "description": "ZNC\u662f\u4e00\u5957\u5141\u8bb8\u7528\u6237\u4ece\u5de5\u4f5c\u7ad9\u767b\u5f55\u5230IRC\u670d\u52a1\u5668\u7684IRC\u4ee3\u7406\u3002\n\nZNC 1.8.0\u53ca\u540e\uff081.8.1-rc1\u7248\u672c\u5df2\u4fee\u590d\uff09\u4e2d\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\u3002\u5f53echo-message\u672a\u542f\u7528\u4e14\u6ca1\u6709\u7f51\u7edc\u65f6\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\uff09\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\uff1a\r\nhttps://github.com/znc/znc/commit/2390ad111bde16a78c98ac44572090b33c3bd2d8",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-38777",
  "openTime": "2020-07-13",
  "patchDescription": "ZNC\u662f\u4e00\u5957\u5141\u8bb8\u7528\u6237\u4ece\u5de5\u4f5c\u7ad9\u767b\u5f55\u5230IRC\u670d\u52a1\u5668\u7684IRC\u4ee3\u7406\u3002\r\n\r\nZNC 1.8.0\u53ca\u540e\uff081.8.1-rc1\u7248\u672c\u5df2\u4fee\u590d\uff09\u4e2d\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\u3002\u5f53echo-message\u672a\u542f\u7528\u4e14\u6ca1\u6709\u7f51\u7edc\u65f6\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u5e94\u7528\u7a0b\u5e8f\u5d29\u6e83\uff08\u7a7a\u6307\u9488\u9006\u5411\u5f15\u7528\uff09\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": "ZNC\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "ZNC ZNC \u003e=1.8.0\uff0c\u003c=1.8.1-rc1"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-13775",
  "serverity": "\u4f4e",
  "submitTime": "2020-06-03",
  "title": "ZNC\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2020-13775 (GCVE-0-2020-13775)

Vulnerability from cvelistv5 – Published: 2020-06-02 22:51 – Updated: 2024-08-04 12:25

Summary

ZNC 1.8.0 up to 1.8.1-rc1 allows authenticated users to trigger an application crash (with a NULL pointer dereference) if echo-message is not enabled and there is no network.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

4 references

URL	Tags
https://github.com/znc/znc/commit/2390ad111bde16a…	x_refsource_CONFIRM
https://github.com/znc/znc/commit/d229761821da38d…	x_refsource_CONFIRM
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-04T12:25:16.566Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://github.com/znc/znc/commit/2390ad111bde16a78c98ac44572090b33c3bd2d8"
          },
          {
            "tags": [
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            ],
            "url": "https://github.com/znc/znc/commit/d229761821da38d984a9e4098ad96842490dc001"
          },
          {
            "name": "FEDORA-2020-0091083d6d",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HS3DWGXLVRROQQA57UIPMDM6XMVEMBRA/"
          },
          {
            "name": "FEDORA-2020-12237dbae2",
            "tags": [
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            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DNVBE4T2DRJRQHFRMHYBTN4OSOL6DBHR/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "lang": "en",
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      "providerMetadata": {
        "dateUpdated": "2020-07-03T02:06:21.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
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      "references": [
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          "tags": [
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          "url": "https://github.com/znc/znc/commit/2390ad111bde16a78c98ac44572090b33c3bd2d8"
        },
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          "url": "https://github.com/znc/znc/commit/d229761821da38d984a9e4098ad96842490dc001"
        },
        {
          "name": "FEDORA-2020-0091083d6d",
          "tags": [
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            "x_refsource_FEDORA"
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HS3DWGXLVRROQQA57UIPMDM6XMVEMBRA/"
        },
        {
          "name": "FEDORA-2020-12237dbae2",
          "tags": [
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        }
      ],
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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.

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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Action not permitted

CNVD-2020-38777

CVE-2020-13775 (GCVE-0-2020-13775)

Tags

Sightings

Nomenclature

Related by attack behaviour