Vulnerability-Lookup

CNVD-2023-62932

Vulnerability from cnvd - Published: 2023-08-11

Title

Cisco AsyncOS输入验证错误漏洞

Description

Cisco AsyncOS是美国思科（Cisco）公司的产品。Cisco AsyncOS是一款应用于思科设备的操作系统。 Cisco AsyncOS存在输入验证错误漏洞，该漏洞源于当流量以特定内容格式编码时，恶意流量检测不当，未经身份验证的攻击者可利用该漏洞绕过配置规则并接收设备本应拒绝的流量。

Severity

中

Patch Name

Cisco AsyncOS输入验证错误漏洞的补丁

Patch Description

Cisco AsyncOS是美国思科（Cisco）公司的产品。Cisco AsyncOS是一款应用于思科设备的操作系统。 Cisco AsyncOS存在输入验证错误漏洞，该漏洞源于当流量以特定内容格式编码时，恶意流量检测不当，未经身份验证的攻击者可利用该漏洞绕过配置规则并接收设备本应拒绝的流量。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

厂商已发布了漏洞修复程序，请及时关注更新： https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-bypass-vXvqwzsj

Reference

https://nvd.nist.gov/vuln/detail/CVE-2023-20215

Impacted products

Name
Cisco Cisco AsyncOS <=14.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2023-20215",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2023-20215"
    }
  },
  "description": "Cisco AsyncOS\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4ea7\u54c1\u3002Cisco AsyncOS\u662f\u4e00\u6b3e\u5e94\u7528\u4e8e\u601d\u79d1\u8bbe\u5907\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nCisco AsyncOS\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5f53\u6d41\u91cf\u4ee5\u7279\u5b9a\u5185\u5bb9\u683c\u5f0f\u7f16\u7801\u65f6\uff0c\u6076\u610f\u6d41\u91cf\u68c0\u6d4b\u4e0d\u5f53\uff0c\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u914d\u7f6e\u89c4\u5219\u5e76\u63a5\u6536\u8bbe\u5907\u672c\u5e94\u62d2\u7edd\u7684\u6d41\u91cf\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://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-bypass-vXvqwzsj",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2023-62932",
  "openTime": "2023-08-11",
  "patchDescription": "Cisco AsyncOS\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4ea7\u54c1\u3002Cisco AsyncOS\u662f\u4e00\u6b3e\u5e94\u7528\u4e8e\u601d\u79d1\u8bbe\u5907\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco AsyncOS\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5f53\u6d41\u91cf\u4ee5\u7279\u5b9a\u5185\u5bb9\u683c\u5f0f\u7f16\u7801\u65f6\uff0c\u6076\u610f\u6d41\u91cf\u68c0\u6d4b\u4e0d\u5f53\uff0c\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u914d\u7f6e\u89c4\u5219\u5e76\u63a5\u6536\u8bbe\u5907\u672c\u5e94\u62d2\u7edd\u7684\u6d41\u91cf\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 AsyncOS\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Cisco AsyncOS \u003c=14.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2023-20215",
  "serverity": "\u4e2d",
  "submitTime": "2023-08-06",
  "title": "Cisco AsyncOS\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2023-20215 (GCVE-0-2023-20215)

Vulnerability from cvelistv5 – Published: 2023-08-03 21:16 – Updated: 2024-08-02 09:05

Summary

A vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass a configured rule, allowing traffic onto a network that should have been blocked. This vulnerability is due to improper detection of malicious traffic when the traffic is encoded with a specific content format. An attacker could exploit this vulnerability by using an affected device to connect to a malicious server and receiving crafted HTTP responses. A successful exploit could allow the attacker to bypass an explicit block rule and receive traffic that should have been rejected by the device.

Severity

5.8 (Medium)


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

CWE

CWE-202 - Exposure of Sensitive Information Through Data Queries

Assigner

cisco mitre root

References

1 reference

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

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco Secure Web Appliance	Affected: 11.7.0-406 Affected: 11.7.0-418 Affected: 11.7.1-049 Affected: 11.7.1-006 Affected: 11.7.1-020 Affected: 11.7.2-011 Affected: 11.8.0-414 Affected: 11.8.1-023 Affected: 11.8.3-018 Affected: 11.8.3-021 Affected: 12.0.1-268 Affected: 12.0.3-007 Affected: 12.5.2-007 Affected: 12.5.1-011 Affected: 12.5.4-005 Affected: 12.5.5-004 Affected: 14.5.0-498 Affected: 14.5.1-016 Affected: 14.0.3-014 Affected: 14.0.2-012 Affected: 14.0.4-005

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T09:05:35.594Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "cisco-sa-wsa-bypass-vXvqwzsj",
            "tags": [
              "x_transferred"
            ],
            "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-bypass-vXvqwzsj"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Secure Web Appliance",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "11.7.0-406"
            },
            {
              "status": "affected",
              "version": "11.7.0-418"
            },
            {
              "status": "affected",
              "version": "11.7.1-049"
            },
            {
              "status": "affected",
              "version": "11.7.1-006"
            },
            {
              "status": "affected",
              "version": "11.7.1-020"
            },
            {
              "status": "affected",
              "version": "11.7.2-011"
            },
            {
              "status": "affected",
              "version": "11.8.0-414"
            },
            {
              "status": "affected",
              "version": "11.8.1-023"
            },
            {
              "status": "affected",
              "version": "11.8.3-018"
            },
            {
              "status": "affected",
              "version": "11.8.3-021"
            },
            {
              "status": "affected",
              "version": "12.0.1-268"
            },
            {
              "status": "affected",
              "version": "12.0.3-007"
            },
            {
              "status": "affected",
              "version": "12.5.2-007"
            },
            {
              "status": "affected",
              "version": "12.5.1-011"
            },
            {
              "status": "affected",
              "version": "12.5.4-005"
            },
            {
              "status": "affected",
              "version": "12.5.5-004"
            },
            {
              "status": "affected",
              "version": "14.5.0-498"
            },
            {
              "status": "affected",
              "version": "14.5.1-016"
            },
            {
              "status": "affected",
              "version": "14.0.3-014"
            },
            {
              "status": "affected",
              "version": "14.0.2-012"
            },
            {
              "status": "affected",
              "version": "14.0.4-005"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass a configured rule, allowing traffic onto a network that should have been blocked.\r\n\r This vulnerability is due to improper detection of malicious traffic when the traffic is encoded with a specific content format. An attacker could exploit this vulnerability by using an affected device to connect to a malicious server and receiving crafted HTTP responses. A successful exploit could allow the attacker to bypass an explicit block rule and receive traffic that should have been rejected by the device."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco 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": "NONE",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-202",
              "description": "Exposure of Sensitive Information Through Data Queries",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-01-25T16:58:20.215Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-wsa-bypass-vXvqwzsj",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-bypass-vXvqwzsj"
        }
      ],
      "source": {
        "advisory": "cisco-sa-wsa-bypass-vXvqwzsj",
        "defects": [
          "CSCwf60901",
          "CSCwf55917",
          "CSCwf94501"
        ],
        "discovery": "EXTERNAL"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2023-20215",
    "datePublished": "2023-08-03T21:16:38.159Z",
    "dateReserved": "2022-10-27T18:47:50.368Z",
    "dateUpdated": "2024-08-02T09:05:35.594Z",
    "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.