cisco-sa-clamav-xxe-tcszduhn
Vulnerability from csaf_cisco
Published
2023-02-15 16:00
Modified
2023-02-15 20:15
Summary
ClamAV DMG File Parsing XML Entity Expansion Vulnerability Affecting Cisco Products: February 2023

Notes

Summary
On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed: A vulnerability in the DMG file parser of ClamAV versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier could allow an unauthenticated, remote attacker to access sensitive information on an affected device. This vulnerability is due to enabling XML entity substitution that may result in XML external entity injection. An attacker could exploit this vulnerability by submitting a crafted DMG file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to leak bytes from any file that may be read by the ClamAV scanning process. For a description of this vulnerability, see the ClamAV blog ["https://blog.clamav.net/"].
Affected Products
Cisco investigated its product line to determine which products may be affected by this vulnerability. The Vulnerable Products ["#vp"] section includes Cisco bug IDs for each affected product. The bugs are accessible through the Cisco Bug Search Tool ["https://bst.cloudapps.cisco.com/bugsearch/bug/BUGID"] and contain additional platform-specific information, including workarounds (if available) and fixed software releases. Any product not listed in the Vulnerable Products section of this advisory is to be considered not vulnerable.
Vulnerable Products
The following table lists Cisco products that are affected by the vulnerability that is described in this advisory. If a future release date is indicated for software, the date provided represents an estimate based on all information known to Cisco as of the Last Updated date at the top of the advisory. Availability dates are subject to change based on a number of factors, including satisfactory testing results and delivery of other priority features and fixes. Cisco Product Cisco Bug ID Fixed Release Availability ["https://tools.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"] Secure Endpoint, formerly Advanced Malware Protection (AMP) for Endpoints, for Linux CSCwd87111 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd87111"] 1.20.21 Secure Endpoint, formerly Advanced Malware Protection (AMP) for Endpoints, for MacOS CSCwd87112 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd87112"] 1.21.11 Secure Endpoint, formerly Advanced Malware Protection (AMP) for Endpoints, for Windows CSCwd87113 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd87113"] 7.5.91 8.1.5 Secure Endpoint Private Cloud CSCwe18204 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwe18204"] 3.6.0 or later with updated connectors2 1. Updated releases of Cisco Secure Endpoint are available through the Cisco Secure Endpoint ["https://console.amp.cisco.com/"] portal. Depending on the configured policy, Cisco Secure Endpoint will automatically update. 2. Affected releases of Cisco Secure Endpoint clients for Cisco Secure Endpoint Private Cloud have been updated in the connectors repository. Customers will get these connector updates through normal content update processes. Attention: Simplifying the Cisco portfolio includes the renaming of security products under one brand: Cisco Secure. For more information, see Meet Cisco Secure ["https://www.cisco.com/c/en/us/products/security/secure-names.html"].
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products ["#vp"] section of this advisory are known to be affected by this vulnerability. Cisco has confirmed that this vulnerability does not affect the following Cisco products: Secure Email Gateway, formerly Email Security Appliance Secure Email and Web Manager, formerly Security Management Appliance Secure Web Appliance, formerly Web Security Appliance
Workarounds
There are no workarounds that address this vulnerability.
Fixed Software
For information about fixed software releases, consult the Cisco bugs identified in the Vulnerable Products ["#vp"] section of this advisory. When considering software upgrades ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page ["https://www.cisco.com/go/psirt"], to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
Vulnerability Policy
To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy ["http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
Exploitation and Public Announcements
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.
Source
Cisco would like to thank Simon Scannell for reporting this vulnerability.
Legal Disclaimer
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME. A standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.



{
  "document": {
    "acknowledgments": [
      {
        "summary": "Cisco would like to thank Simon Scannell for reporting this vulnerability."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "On Feb 15, 2023, the following vulnerability in the ClamAV scanning library was disclosed:\r\n\r\n\r\nA vulnerability in the DMG file parser of ClamAV versions 1.0.0 and earlier, 0.105.1 and earlier, and 0.103.7 and earlier could allow an unauthenticated, remote attacker to access sensitive information on an affected device.\r\n\r\nThis vulnerability is due to enabling XML entity substitution that may result in XML external entity injection. An attacker could exploit this vulnerability by submitting a crafted DMG file to be scanned by ClamAV on an affected device. A successful exploit could allow the attacker to leak bytes from any file that may be read by the ClamAV scanning process.\r\n\r\nFor a description of this vulnerability, see the ClamAV blog [\"https://blog.clamav.net/\"].\r\n\r\n",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "Cisco investigated its product line to determine which products may be affected by this vulnerability.\r\n\r\nThe Vulnerable Products [\"#vp\"] section includes Cisco bug IDs for each affected product. The bugs are accessible through the Cisco Bug Search Tool [\"https://bst.cloudapps.cisco.com/bugsearch/bug/BUGID\"] and contain additional platform-specific information, including workarounds (if available) and fixed software releases.\r\n\r\nAny product not listed in the Vulnerable Products section of this advisory is to be considered not vulnerable.",
        "title": "Affected Products"
      },
      {
        "category": "general",
        "text": "The following table lists Cisco products that are affected by the vulnerability that is described in this advisory. If a future release date is indicated for software, the date provided represents an estimate based on all information known to Cisco as of the Last Updated date at the top of the advisory. Availability dates are subject to change based on a number of factors, including satisfactory testing results and delivery of other priority features and fixes.\r\n        Cisco Product  Cisco Bug ID  Fixed Release Availability [\"https://tools.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"]          Secure Endpoint, formerly Advanced Malware Protection (AMP) for Endpoints, for Linux  CSCwd87111 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd87111\"]  1.20.21      Secure Endpoint, formerly Advanced Malware Protection (AMP) for Endpoints, for MacOS  CSCwd87112 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd87112\"]  1.21.11      Secure Endpoint, formerly Advanced Malware Protection (AMP) for Endpoints, for Windows  CSCwd87113 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd87113\"]  7.5.91\r\n8.1.5      Secure Endpoint Private Cloud  CSCwe18204 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwe18204\"]  3.6.0 or later with updated connectors2\r\n1. Updated releases of Cisco Secure Endpoint are available through the Cisco Secure Endpoint [\"https://console.amp.cisco.com/\"] portal. Depending on the configured policy, Cisco Secure Endpoint will automatically update.\r\n2. Affected releases of Cisco Secure Endpoint clients for Cisco Secure Endpoint Private Cloud have been updated in the connectors repository. Customers will get these connector updates through normal content update processes.\r\nAttention: Simplifying the Cisco portfolio includes the renaming of security products under one brand: Cisco Secure. For more information, see Meet Cisco Secure [\"https://www.cisco.com/c/en/us/products/security/secure-names.html\"].",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.\r\n\r\nCisco has confirmed that this vulnerability does not affect the following Cisco products:\r\n\r\nSecure Email Gateway, formerly Email Security Appliance\r\nSecure Email and Web Manager, formerly Security Management Appliance\r\nSecure Web Appliance, formerly Web Security Appliance",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address this vulnerability.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "For information about fixed software releases, consult the Cisco bugs identified in the Vulnerable Products [\"#vp\"] section of this advisory.\r\n\r\nWhen considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page [\"https://www.cisco.com/go/psirt\"], to determine exposure and a complete upgrade solution.\r\n\r\nIn all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html\"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.",
        "title": "Vulnerability Policy"
      },
      {
        "category": "general",
        "text": "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.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "Cisco would like to thank Simon Scannell for reporting this vulnerability.",
        "title": "Source"
      },
      {
        "category": "legal_disclaimer",
        "text": "THIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.\r\n\r\nA standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.",
        "title": "Legal Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "Emergency Support:\r\n+1 877 228 7302 (toll-free within North America)\r\n+1 408 525 6532 (International direct-dial)\r\nNon-emergency Support:\r\nEmail: psirt@cisco.com\r\nSupport requests that are received via e-mail are typically acknowledged within 48 hours.",
      "issuing_authority": "Cisco product security incident response is the responsibility of the Cisco Product Security Incident Response Team (PSIRT). The Cisco PSIRT is a dedicated, global team that manages the receipt, investigation, and public reporting of security vulnerability information that is related to Cisco products and networks. The on-call Cisco PSIRT works 24x7 with Cisco customers, independent security researchers, consultants, industry organizations, and other vendors to identify possible security issues with Cisco products and networks.\r\nMore information can be found in Cisco Security Vulnerability Policy available at https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "ClamAV DMG File Parsing XML Entity Expansion Vulnerability Affecting Cisco Products: February 2023",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-xxe-TcSZduhN"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "ClamAV blog",
        "url": "https://blog.clamav.net/"
      },
      {
        "category": "external",
        "summary": "Cisco Bug Search Tool",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/BUGID"
      },
      {
        "category": "external",
        "summary": "Fixed Release Availability",
        "url": "https://tools.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "summary": "CSCwd87111",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd87111"
      },
      {
        "category": "external",
        "summary": "CSCwd87112",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd87112"
      },
      {
        "category": "external",
        "summary": "CSCwd87113",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwd87113"
      },
      {
        "category": "external",
        "summary": "CSCwe18204",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwe18204"
      },
      {
        "category": "external",
        "summary": "Cisco Secure Endpoint",
        "url": "https://console.amp.cisco.com/"
      },
      {
        "category": "external",
        "summary": "Meet Cisco Secure",
        "url": "https://www.cisco.com/c/en/us/products/security/secure-names.html"
      },
      {
        "category": "external",
        "summary": "considering software upgrades",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisories page",
        "url": "https://www.cisco.com/go/psirt"
      },
      {
        "category": "external",
        "summary": "Security Vulnerability Policy",
        "url": "http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html"
      }
    ],
    "title": "ClamAV DMG File Parsing XML Entity Expansion Vulnerability Affecting Cisco Products: February 2023",
    "tracking": {
      "current_release_date": "2023-02-15T20:15:58+00:00",
      "generator": {
        "date": "2023-02-15T20:15:59+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-clamav-xxe-TcSZduhN",
      "initial_release_date": "2023-02-15T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2023-02-15T15:53:36+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        },
        {
          "date": "2023-02-15T20:15:58+00:00",
          "number": "1.1.0",
          "summary": "Changed date of ClamAV disclosure to February 15."
        }
      ],
      "status": "final",
      "version": "1.1.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_family",
            "name": "Cisco AMP for Endpoints",
            "product": {
              "name": "Cisco AMP for Endpoints ",
              "product_id": "CSAFPID-221075"
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2023-20052",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCwd87111"
        },
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCwd87112"
        },
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCwd87113"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-221075"
        ]
      },
      "release_date": "2023-02-15T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-221075"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-221075"
          ]
        }
      ],
      "title": "ClamAV DMG File Parsing XML Entity Expansion Vulnerability"
    }
  ]
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.