Vulnerability-Lookup

WID-SEC-W-2023-1397

Vulnerability from csaf_certbund - Published: 2023-06-08 22:00 - Updated: 2023-06-08 22:00

Summary

Cisco ASA (Adaptive Security Appliance): Schwachstelle ermöglicht Denial of Service

Severity

Hoch

Notes

Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.

Produktbeschreibung: Die Cisco ASA Appliance bietet Funktionen zur Sicherung von Anwendungssoftware, wie beispielsweise Firewall oder VPN. Firepower ist eine Firewall-Plattform von Cisco

Angriff: Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Cisco ASA (Adaptive Security Appliance) und Cisco Firepower ausnutzen, um einen Denial of Service Angriff durchzuführen.

Betroffene Betriebssysteme: - CISCO Appliance

CVE-2023-20006

Es existiert eine Schwachstelle in Cisco ASA (Adaptive Security Appliance) und Cisco Firepower. In der hardwarebasierten SSL/TLS-Verschlüsselungsfunktionalität besteht ein Implementierungsfehler in den kryptografischen Funktionen für die Verarbeitung von SSL/TLS-Datenverkehr. Ein entfernter, anonymer Angreifer kann diese Schwachstelle mithilfe eines manipulierten SSL/TLS-Datenstroms ausnutzen, um ein Neuladen des betroffenen Gerätes und somit einen Denial of Service zu verursachen.

Affected products

Known affected 6 products

Product	Identifier	Version
Cisco ASA (Adaptive Security Appliance) 9.18.2 Cisco / ASA (Adaptive Security Appliance)	`cpe:/h:cisco:adaptive_security_appliance:virtual__9.18.2`	—
Cisco Firepower FTD 7.2.2 Cisco / Firepower	`cpe:/a:cisco:firepower:ftd_7.2.2`	—
Cisco Firepower FTD 7.2.3 Cisco / Firepower	`cpe:/a:cisco:firepower:ftd_7.2.3`	—
Cisco ASA (Adaptive Security Appliance) 9.18.2.5 Cisco / ASA (Adaptive Security Appliance)	`cpe:/h:cisco:adaptive_security_appliance:9.18.2.5`	—
Cisco Firepower FTD 7.2.1 Cisco / Firepower	`cpe:/a:cisco:firepower:ftd_7.2.1`	—
Cisco ASA (Adaptive Security Appliance) 9.16.4 Cisco / ASA (Adaptive Security Appliance)	`cpe:/h:cisco:adaptive_security_appliance:9.16.4`	—

References

3 references

URL	Category
https://wid.cert-bund.de/.well-known/csaf/white/2…	self
https://wid.cert-bund.de/portal/wid/securityadvis…	self
https://sec.cloudapps.cisco.com/security/center/c…	external

JSON

To clipboard

{
  "document": {
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      "text": "hoch"
    },
    "category": "csaf_base",
    "csaf_version": "2.0",
    "distribution": {
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        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
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    "lang": "de-DE",
    "notes": [
      {
        "category": "legal_disclaimer",
        "text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
      },
      {
        "category": "description",
        "text": "Die Cisco ASA Appliance bietet Funktionen zur Sicherung von Anwendungssoftware, wie beispielsweise Firewall oder VPN.\r\nFirepower ist eine Firewall-Plattform von Cisco",
        "title": "Produktbeschreibung"
      },
      {
        "category": "summary",
        "text": "Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Cisco ASA (Adaptive Security Appliance) und Cisco Firepower ausnutzen, um einen Denial of Service Angriff durchzuf\u00fchren.",
        "title": "Angriff"
      },
      {
        "category": "general",
        "text": "- CISCO Appliance",
        "title": "Betroffene Betriebssysteme"
      }
    ],
    "publisher": {
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      "contact_details": "csaf-provider@cert-bund.de",
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    "references": [
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      },
      {
        "category": "self",
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        "url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-1397"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisory vom 2023-06-08",
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    "source_lang": "en-US",
    "title": "Cisco ASA (Adaptive Security Appliance): Schwachstelle erm\u00f6glicht Denial of Service",
    "tracking": {
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                "category": "product_name",
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                "product": {
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                    "cpe": "cpe:/a:cisco:firepower:ftd_7.2.1"
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              },
              {
                "category": "product_name",
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                "product": {
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      "notes": [
        {
          "category": "description",
          "text": "Es existiert eine Schwachstelle in Cisco ASA (Adaptive Security Appliance) und Cisco Firepower. In der hardwarebasierten SSL/TLS-Verschl\u00fcsselungsfunktionalit\u00e4t besteht ein Implementierungsfehler in den kryptografischen Funktionen f\u00fcr die Verarbeitung von SSL/TLS-Datenverkehr. Ein entfernter, anonymer Angreifer kann diese Schwachstelle mithilfe eines manipulierten SSL/TLS-Datenstroms ausnutzen, um ein Neuladen des betroffenen Ger\u00e4tes und somit einen Denial of Service zu verursachen."
        }
      ],
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          "T028015",
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        ]
      },
      "release_date": "2023-06-08T22:00:00.000+00:00",
      "title": "CVE-2023-20006"
    }
  ]
}

CVE-2023-20006 (GCVE-0-2023-20006)

Vulnerability from cvelistv5 – Published: 2023-06-28 00:00 – Updated: 2024-08-02 08:57

Summary

A vulnerability in the hardware-based SSL/TLS cryptography functionality of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Appliances could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to an implementation error within the cryptographic functions for SSL/TLS traffic processing when they are offloaded to the hardware. An attacker could exploit this vulnerability by sending a crafted stream of SSL/TLS traffic to an affected device. A successful exploit could allow the attacker to cause an unexpected error in the hardware-based cryptography engine, which could cause the device to reload.

Severity

8.6 (High)


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

CWE

CWE-681 - Incorrect Conversion between Numeric Types

Assigner

cisco mitre root

References

1 reference

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

Impacted products

2 products

Vendor	Product	Version
Cisco	Cisco Adaptive Security Appliance (ASA) Software	Affected: 9.16.4 Affected: 9.18.2 Affected: 9.18.2.5
Cisco	Cisco Firepower Threat Defense Software	Affected: 7.2.1 Affected: 7.2.2 Affected: 7.2.3

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T08:57:35.719Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "cisco-sa-asaftd-ssl-dos-uu7mV5p6",
            "tags": [
              "x_transferred"
            ],
            "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-ssl-dos-uu7mV5p6"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Adaptive Security Appliance (ASA) Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "9.16.4"
            },
            {
              "status": "affected",
              "version": "9.18.2"
            },
            {
              "status": "affected",
              "version": "9.18.2.5"
            }
          ]
        },
        {
          "product": "Cisco Firepower Threat Defense Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "7.2.1"
            },
            {
              "status": "affected",
              "version": "7.2.2"
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            {
              "status": "affected",
              "version": "7.2.3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the hardware-based SSL/TLS cryptography functionality of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series Appliances could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly, resulting in a denial of service (DoS) condition.\r\n\r This vulnerability is due to an implementation error within the cryptographic functions for SSL/TLS traffic processing when they are offloaded to the hardware. An attacker could exploit this vulnerability by sending a crafted stream of SSL/TLS traffic to an affected device. A successful exploit could allow the attacker to cause an unexpected error in the hardware-based cryptography engine, which could cause the device to reload."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco Product 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",
            "version": "3.1"
          },
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              "description": "Incorrect Conversion between Numeric Types",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
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      "providerMetadata": {
        "dateUpdated": "2024-01-25T16:57:29.395Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
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      "references": [
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          "name": "cisco-sa-asaftd-ssl-dos-uu7mV5p6",
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        }
      ],
      "source": {
        "advisory": "cisco-sa-asaftd-ssl-dos-uu7mV5p6",
        "defects": [
          "CSCwc94466"
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        "discovery": "EXTERNAL"
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  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
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    "datePublished": "2023-06-28T00:00:00.000Z",
    "dateReserved": "2022-10-27T00:00:00.000Z",
    "dateUpdated": "2024-08-02T08:57:35.719Z",
    "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.