Vulnerability-Lookup

CNVD-2020-31991

Vulnerability from cnvd - Published: 2020-06-09

Title

Cisco IOS XE数据伪造问题漏洞（CNVD-2020-31991）

Description

Cisco IOS XE是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS XE中的软件映像验证存在数据伪造问题漏洞，该漏洞源于程序在初始引导过程中未正确检查用于管理系统映像文件的数字签名验证的代码区域。攻击者可通过在受影响的设备上加载未签名的软件利用该漏洞在目标设备上安装和启动恶意软件映像或执行未签名的二进制文件。

Severity

高

Patch Name

Cisco IOS XE数据伪造问题漏洞（CNVD-2020-31991）的补丁

Patch Description

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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-digsig-bypass-FYQ3bmVq

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-3209

Impacted products

Name
Cisco IOS XE

Show details on source website

JSON

To clipboard

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    "cve": {
      "cveNumber": "CVE-2020-3209"
    }
  },
  "description": "Cisco IOS XE\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nCisco IOS XE\u4e2d\u7684\u8f6f\u4ef6\u6620\u50cf\u9a8c\u8bc1\u5b58\u5728\u6570\u636e\u4f2a\u9020\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u5728\u521d\u59cb\u5f15\u5bfc\u8fc7\u7a0b\u4e2d\u672a\u6b63\u786e\u68c0\u67e5\u7528\u4e8e\u7ba1\u7406\u7cfb\u7edf\u6620\u50cf\u6587\u4ef6\u7684\u6570\u5b57\u7b7e\u540d\u9a8c\u8bc1\u7684\u4ee3\u7801\u533a\u57df\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5728\u53d7\u5f71\u54cd\u7684\u8bbe\u5907\u4e0a\u52a0\u8f7d\u672a\u7b7e\u540d\u7684\u8f6f\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u76ee\u6807\u8bbe\u5907\u4e0a\u5b89\u88c5\u548c\u542f\u52a8\u6076\u610f\u8f6f\u4ef6\u6620\u50cf\u6216\u6267\u884c\u672a\u7b7e\u540d\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-digsig-bypass-FYQ3bmVq",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-31991",
  "openTime": "2020-06-09",
  "patchDescription": "Cisco IOS XE\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco IOS XE\u4e2d\u7684\u8f6f\u4ef6\u6620\u50cf\u9a8c\u8bc1\u5b58\u5728\u6570\u636e\u4f2a\u9020\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u5728\u521d\u59cb\u5f15\u5bfc\u8fc7\u7a0b\u4e2d\u672a\u6b63\u786e\u68c0\u67e5\u7528\u4e8e\u7ba1\u7406\u7cfb\u7edf\u6620\u50cf\u6587\u4ef6\u7684\u6570\u5b57\u7b7e\u540d\u9a8c\u8bc1\u7684\u4ee3\u7801\u533a\u57df\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5728\u53d7\u5f71\u54cd\u7684\u8bbe\u5907\u4e0a\u52a0\u8f7d\u672a\u7b7e\u540d\u7684\u8f6f\u4ef6\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u76ee\u6807\u8bbe\u5907\u4e0a\u5b89\u88c5\u548c\u542f\u52a8\u6076\u610f\u8f6f\u4ef6\u6620\u50cf\u6216\u6267\u884c\u672a\u7b7e\u540d\u7684\u4e8c\u8fdb\u5236\u6587\u4ef6\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",
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  "products": {
    "product": "Cisco IOS XE"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3209",
  "serverity": "\u9ad8",
  "submitTime": "2020-06-04",
  "title": "Cisco IOS XE\u6570\u636e\u4f2a\u9020\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2020-31991\uff09"
}

CVE-2020-3209 (GCVE-0-2020-3209)

Vulnerability from cvelistv5 – Published: 2020-06-03 17:40 – Updated: 2024-11-15 17:18

Title

Cisco IOS XE Software Digital Signature Verification Bypass Vulnerability

Summary

A vulnerability in software image verification in Cisco IOS XE Software could allow an unauthenticated, physical attacker to install and boot a malicious software image or execute unsigned binaries on an affected device. The vulnerability is due to an improper check on the area of code that manages the verification of the digital signatures of system image files during the initial boot process. An attacker could exploit this vulnerability by loading unsigned software on an affected device. A successful exploit could allow the attacker to install and boot a malicious software image or execute unsigned binaries on the targeted device.

Severity

6.8 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-15 16:24 UTC

CWE

CWE-347

Assigner

cisco mitre root

References

1 reference

URL	Tags
https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco IOS XE Software 3.2.0SG	Affected: n/a

Date Public

2020-06-03 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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        "providerMetadata": {
          "dateUpdated": "2024-08-04T07:24:00.672Z",
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        "references": [
          {
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              "x_refsource_CISCO",
              "x_transferred"
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            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-digsig-bypass-FYQ3bmVq"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
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                "id": "CVE-2020-3209",
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                  },
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                  },
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                  }
                ],
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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      ],
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      ],
      "exploits": [
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            "confidentialityImpact": "HIGH",
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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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CNVD-2020-31991

CVE-2020-3209 (GCVE-0-2020-3209)

Tags

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Nomenclature

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