{
  "document": {
    "acknowledgments": [
      {
        "summary": "Cisco would like to thank security researchers Mikhail Klyuchnikov and Yury Aleynov from Positive Technologies for finding and reporting this vulnerability."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in Java deserialization used by Cisco Secure Access Control System (ACS) could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device.\r\nThe vulnerability is due to insecure deserialization of user-supplied content by the affected software. An attacker could exploit this vulnerability by sending a crafted serialized Java object. An exploit could allow the attacker to execute arbitrary commands on the device with root privileges.\r\n  Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\nThis advisory is available at the following link:\r\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-acs2 [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-acs2\"]",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "This vulnerability affects all releases of Cisco Secure ACS prior to release 5.8 patch 9. Administrators can use one of the following methods to determine which Cisco Secure ACS release is running on the device:\r\n\r\nCisco Secure ACS command-line Interface\r\n\r\nThe show version command can be issued from the Cisco Secure ACS CLI. The following example shows the output of the show version command for a device that is running Cisco Secure ACS 5.8.0.32 with Cumulative Patch 1 installed:\r\n\r\n\r\nacs5x/admin# show version\r\n  Cisco Application Deployment Engine OS Release: 2.2  ADE-OS Build Version: 2.2.2.013  ADE-OS System Architecture: x86_64    Copyright (c) 2005-2015 by Cisco Systems, Inc.  All rights reserved.  Hostname: acs5x      Version information of installed applications  ---------------------------------------------      Cisco ACS VERSION INFORMATION  -----------------------------  Version : 5.8.0.32  Internal Build ID : B.442  Patches :  5-8-0-32-1    acs5x/admin#\r\n\r\nCisco Secure ACS web-based Interface\r\n\r\nLog in to the Cisco Secure ACS web-based interface and click the About link in the top right corner of the screen.",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "No other Cisco products are currently known to be affected by this vulnerability.",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "The CVSSv3 score assigned to this vulnerability is based on Cisco Secure ACS releases prior to 5.8 Patch 7. Cisco Secure ACS systems running release 5.8 Patch 7 or Patch 8, require authentication in order to exploit this vulnerability. The CVSSv3 score assigned to Cisco Secure ACS systems running release 5.8 Patch 7 or Patch 8 is Base 8.8: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H [\"https://sec.cloudapps.cisco.com/security/center/cvssCalculator.x?version=3\u0026vector=CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MPR:X/MUI:X/MS:X/MC:X/MI:X/MA:X\"].",
        "title": "Details"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address this vulnerability.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "Cisco has released free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:\r\nhttps://www.cisco.com/c/en/us/products/end-user-license-agreement.html [\"https://www.cisco.com/c/en/us/products/end-user-license-agreement.html\"]\r\n\r\nAdditionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.\r\n\r\nWhen considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts 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.\r\n\r\nCustomers Without Service Contracts\r\n\r\nCustomers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC:\r\nhttps://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"]\r\n\r\nCustomers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.\r\n      Fixed Releases\r\nThis vulnerability is fixed in Cisco Secure ACS 5.8.0.32.9 Cumulative Patch [\"https://software.cisco.com/download/release.html?mdfid=286286338\u0026flowid=83475\u0026softwareid=282766937\u0026release=5.8.0.32\u0026relind=AVAILABLE\u0026rellifecycle=\u0026reltype=latest\"]. The software can be downloaded from the Software Center [\"https://software.cisco.com/download/navigator.html\"] on Cisco.com by navigating to Products \u003e Security \u003e Network Visibility and Enforcement \u003e Secure Access Control System \u003e Secure Access Control System 5.8.",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"https://sec.cloudapps.cisco.com/security/center/resources/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": "In March 2022, the Cisco Product Security Incident Response Team (PSIRT) became aware of additional attempted exploitation of this vulnerability in the wild. Cisco continues to strongly recommend that customers upgrade to a fixed software release to remediate this vulnerability.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "Cisco would like to thank security researchers Mikhail Klyuchnikov and Yury Aleynov from Positive Technologies for finding and 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": "Cisco Secure Access Control System Java Deserialization Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-acs2"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-acs2",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180307-acs2"
      },
      {
        "category": "external",
        "summary": "Base 8.8: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
        "url": "https://sec.cloudapps.cisco.com/security/center/cvssCalculator.x?version=3\u0026amp;vector=CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MPR:X/MUI:X/MS:X/MC:X/MI:X/MA:X"
      },
      {
        "category": "external",
        "summary": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html",
        "url": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html"
      },
      {
        "category": "external",
        "summary": "Cisco\u0026nbsp;Security Advisories and Alerts page",
        "url": "https://www.cisco.com/go/psirt"
      },
      {
        "category": "external",
        "summary": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html",
        "url": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"
      },
      {
        "category": "external",
        "summary": "Cisco\u0026nbsp;Secure ACS 5.8.0.32.9 Cumulative Patch",
        "url": "https://software.cisco.com/download/release.html?mdfid=286286338\u0026amp;flowid=83475\u0026amp;softwareid=282766937\u0026amp;release=5.8.0.32\u0026amp;relind=AVAILABLE\u0026amp;rellifecycle=\u0026amp;reltype=latest"
      },
      {
        "category": "external",
        "summary": "Software Center",
        "url": "https://software.cisco.com/download/navigator.html"
      },
      {
        "category": "external",
        "summary": "Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      }
    ],
    "title": "Cisco Secure Access Control System Java Deserialization Vulnerability",
    "tracking": {
      "current_release_date": "2022-12-15T19:32:31+00:00",
      "generator": {
        "date": "2022-12-15T19:32:32+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-20180307-acs2",
      "initial_release_date": "2018-03-07T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2018-03-07T15:03:25+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        },
        {
          "date": "2022-12-15T19:32:31+00:00",
          "number": "1.1.0",
          "summary": "Updated exploitation information."
        }
      ],
      "status": "final",
      "version": "1.1.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_family",
            "name": "Cisco Secure Access Control System (ACS)",
            "product": {
              "name": "Cisco Secure Access Control System (ACS) ",
              "product_id": "CSAFPID-2074"
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2018-0147",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvh25988"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-2074"
        ]
      },
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-2074"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-2074"
          ]
        }
      ],
      "title": "Cisco Secure Access Control System Java Deserialization Vulnerability"
    }
  ]
}