Vulnerability-Lookup

CNVD-2021-09312

Vulnerability from cnvd - Published: 2021-02-05

Title

Cisco StarOS拒绝服务漏洞（CNVD-2021-09312）

Description

Cisco StarOS是一套路由器操作系统，可控制整个系统逻辑，可控制进程和CLI。 Cisco StarOS 21.22.0之前版本中的IPv4协议处理存在拒绝服务漏洞。该漏洞源于数据包处理期间存在内存泄漏。攻击者可通过发送一系列特制IPv4数据包利用该漏洞耗尽可用内存并导致npusim进程意外重启，从而可导致拒绝服务。

Severity

中

Patch Name

Cisco StarOS拒绝服务漏洞（CNVD-2021-09312）的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asr-mem-leak-dos-MTWGHKk3

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-1353

Impacted products

Name
Cisco StarOS <21.22.0

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-1353",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1353"
    }
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  "number": "CNVD-2021-09312",
  "openTime": "2021-02-05",
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  "products": {
    "product": "Cisco StarOS \u003c21.22.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-1353",
  "serverity": "\u4e2d",
  "submitTime": "2021-01-21",
  "title": "Cisco StarOS\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2021-09312\uff09"
}

CVE-2021-1353 (GCVE-0-2021-1353)

Vulnerability from cvelistv5 – Published: 2021-01-20 20:00 – Updated: 2024-11-12 20:21

Title

Cisco StarOS IPv4 Denial of Service Vulnerability

Summary

A vulnerability in the IPv4 protocol handling of Cisco StarOS could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a memory leak that occurs during packet processing. An attacker could exploit this vulnerability by sending a series of crafted IPv4 packets through an affected device. A successful exploit could allow the attacker to exhaust the available memory and cause an unexpected restart of the npusim process, leading to a DoS condition on the affected device.

Severity

5.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-08 20:05 UTC

CWE

CWE-401

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 ASR 5000 Series Software	Affected: n/a

Date Public

2021-01-20 00:00

Show details on NVD website

JSON

To clipboard

{
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        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:11:16.810Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "name": "20210120 Cisco StarOS IPv4 Denial of Service Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asr-mem-leak-dos-MTWGHKk3"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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              "content": {
                "id": "CVE-2021-1353",
                "options": [
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                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-08T20:05:17.789835Z",
                "version": "2.0.3"
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        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-12T20:21:29.530Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
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    "cna": {
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      "metrics": [
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            "availabilityImpact": "LOW",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L",
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          "tags": [
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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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CNVD-2021-09312

CVE-2021-1353 (GCVE-0-2021-1353)

Tags

Sightings

Nomenclature

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