Vulnerability-Lookup

CNVD-2020-66213

Vulnerability from cnvd - Published: 2020-11-24

Title

Cisco Adaptive Security Appliance (ASA)软件拒绝服务漏洞

Description

Cisco Adaptive Security Appliance (ASA)软件是为Cisco ASA系列提供强大功能的核心操作系统。它拥有多种外观，为ASA设备提供企业级防火墙功能。 Cisco Adaptive Security Appliance (ASA)软件9.13.1.12、9.13.1.13、9.14.1.10的SSL/TLS处理程序存在拒绝服务漏洞。该漏洞源于对已建立的SSL/TLS连接的错误处理不当。攻击者可利用该漏洞导致设备重新加载。

Severity

高

Patch Name

Cisco Adaptive Security Appliance (ASA)软件拒绝服务漏洞的补丁

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-asa-ssl-dos-7uZWwSEy

Reference

https://vigilance.fr/vulnerability/Cisco-ASA-Software-denial-of-service-via-SSL-TLS-Handler-33677

Impacted products

Name
['Cisco Cisco Adaptive Security Appliance (ASA)软件 9.13.1.12', 'Cisco Cisco Adaptive Security Appliance (ASA)软件 9.13.1.13', 'Cisco Cisco Adaptive Security Appliance (ASA)软件 9.14.1.10']

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JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-27124",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-27124"
    }
  },
  "description": "Cisco Adaptive Security Appliance (ASA)\u8f6f\u4ef6\u662f\u4e3aCisco ASA\u7cfb\u5217\u63d0\u4f9b\u5f3a\u5927\u529f\u80fd\u7684\u6838\u5fc3\u64cd\u4f5c\u7cfb\u7edf\u3002\u5b83\u62e5\u6709\u591a\u79cd\u5916\u89c2\uff0c\u4e3aASA\u8bbe\u5907\u63d0\u4f9b\u4f01\u4e1a\u7ea7\u9632\u706b\u5899\u529f\u80fd\u3002\n\nCisco Adaptive Security Appliance (ASA)\u8f6f\u4ef69.13.1.12\u30019.13.1.13\u30019.14.1.10\u7684SSL/TLS\u5904\u7406\u7a0b\u5e8f\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5bf9\u5df2\u5efa\u7acb\u7684SSL/TLS\u8fde\u63a5\u7684\u9519\u8bef\u5904\u7406\u4e0d\u5f53\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8bbe\u5907\u91cd\u65b0\u52a0\u8f7d\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssl-dos-7uZWwSEy",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-66213",
  "openTime": "2020-11-24",
  "patchDescription": "Cisco Adaptive Security Appliance (ASA)\u8f6f\u4ef6\u662f\u4e3aCisco ASA\u7cfb\u5217\u63d0\u4f9b\u5f3a\u5927\u529f\u80fd\u7684\u6838\u5fc3\u64cd\u4f5c\u7cfb\u7edf\u3002\u5b83\u62e5\u6709\u591a\u79cd\u5916\u89c2\uff0c\u4e3aASA\u8bbe\u5907\u63d0\u4f9b\u4f01\u4e1a\u7ea7\u9632\u706b\u5899\u529f\u80fd\u3002\r\n\r\nCisco Adaptive Security Appliance (ASA)\u8f6f\u4ef69.13.1.12\u30019.13.1.13\u30019.14.1.10\u7684SSL/TLS\u5904\u7406\u7a0b\u5e8f\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5bf9\u5df2\u5efa\u7acb\u7684SSL/TLS\u8fde\u63a5\u7684\u9519\u8bef\u5904\u7406\u4e0d\u5f53\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u8bbe\u5907\u91cd\u65b0\u52a0\u8f7d\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": "Cisco Adaptive Security Appliance (ASA)\u8f6f\u4ef6\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Cisco Cisco Adaptive Security Appliance (ASA)\u8f6f\u4ef6 9.13.1.12",
      "Cisco Cisco Adaptive Security Appliance (ASA)\u8f6f\u4ef6 9.13.1.13",
      "Cisco Cisco Adaptive Security Appliance (ASA)\u8f6f\u4ef6 9.14.1.10"
    ]
  },
  "referenceLink": "https://vigilance.fr/vulnerability/Cisco-ASA-Software-denial-of-service-via-SSL-TLS-Handler-33677",
  "serverity": "\u9ad8",
  "submitTime": "2020-10-26",
  "title": "Cisco Adaptive Security Appliance (ASA)\u8f6f\u4ef6\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2020-27124 (GCVE-0-2020-27124)

Vulnerability from cvelistv5 – Published: 2024-11-18 16:03 – Updated: 2024-11-18 16:25

Title

Cisco Adaptive Security Appliance Software SSL/TLS Denial of Service Vulnerability

Summary

A vulnerability in the SSL/TLS handler of Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause the affected device to reload unexpectedly, leading to a denial of service (DoS) condition. The vulnerability is due to improper error handling on established SSL/TLS connections. An attacker could exploit this vulnerability by establishing an SSL/TLS connection with the affected device and then sending a malicious SSL/TLS message within that connection. A successful exploit could allow the attacker to cause the device to reload.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

Severity

8.6 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/RL:X/RC:X/E:X

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-11-18 16:23 UTC

CWE

CWE-457 - Use of Uninitialized Variable

Assigner

cisco mitre root

References

3 references

URL	Tags
https://sec.cloudapps.cisco.com/security/center/c…
https://sec.cloudapps.cisco.com/security/center/c…
https://sec.cloudapps.cisco.com/security/center/c…

Impacted products

2 products

Vendor	Product	Version
Cisco	Cisco Adaptive Security Appliance (ASA) Software	Affected: N/A
cisco	adaptive_security_appliance	Affected: 9.13.1.12 , < 9.13.1.16 (custom) Affected: 9.14.1.10 , < 9.14.1.15 (custom) cpe:2.3:a:cisco:adaptive_security_appliance::::::::

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JSON

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{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "adaptive_security_appliance",
            "vendor": "cisco",
            "versions": [
              {
                "lessThan": "9.13.1.16",
                "status": "affected",
                "version": "9.13.1.12",
                "versionType": "custom"
              },
              {
                "lessThan": "9.14.1.15",
                "status": "affected",
                "version": "9.14.1.10",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2020-27124",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-18T16:23:01.950420Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-18T16:25:39.424Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Adaptive Security Appliance (ASA) Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "N/A"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the SSL/TLS handler of Cisco\u0026nbsp;Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause the affected device to reload unexpectedly, leading to a denial of service (DoS) condition.\r\nThe vulnerability is due to improper error handling on established SSL/TLS connections. An attacker could exploit this vulnerability by establishing an SSL/TLS connection with the affected device and then sending a malicious SSL/TLS message within that connection. A successful exploit could allow the attacker to cause the device to reload.Cisco\u0026nbsp;has released software updates that address this vulnerability. There are no workarounds that address this vulnerability."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco\u00a0Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "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:H/RL:X/RC:X/E:X",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-457",
              "description": "Use of Uninitialized Variable",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-18T16:03:00.333Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-asa-ssl-dos-7uZWwSEy",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ssl-dos-7uZWwSEy"
        },
        {
          "name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sa-rv-routers-xss-K7Z5U6q3",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sa-rv-routers-xss-K7Z5U6q3"
        },
        {
          "name": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-xss-bLZw4Ctq",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-xss-bLZw4Ctq"
        }
      ],
      "source": {
        "advisory": "cisco-sa-asa-ssl-dos-7uZWwSEy",
        "defects": [
          "CSCvt64822"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Cisco Adaptive Security Appliance Software SSL/TLS Denial of Service Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2020-27124",
    "datePublished": "2024-11-18T16:03:00.333Z",
    "dateReserved": "2020-10-13T00:00:00.000Z",
    "dateUpdated": "2024-11-18T16:25:39.424Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.