cisco-sa-rv-routers-stack-vuxhmnnz
Vulnerability from csaf_cisco
Published
2020-06-17 16:00
Modified
2020-06-17 16:00
Summary
Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities

Notes

Summary
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV320 and RV325 Series Routers and Cisco Small Business RV016, RV042, and RV082 Routers could allow an authenticated, remote attacker with administrative privileges to execute arbitrary code on an affected device. The vulnerabilities are due to insufficient boundary restrictions on user-supplied input to scripts in the web-based management interface. An attacker with administrative privileges that are sufficient to log in to the web-based management interface could exploit each vulnerability by sending crafted requests that contain overly large values to an affected device, causing a stack overflow. A successful exploit could allow the attacker to cause the device to crash or allow the attacker to execute arbitrary code with root privileges on the underlying operating system. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-routers-stack-vUxHmnNz ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-routers-stack-vUxHmnNz"]
Vulnerable Products
These vulnerabilities affect the following Cisco Small Business routers and firmware releases: RV016 Multi-WAN VPN: 4.2.3.10 and earlier RV042 Dual WAN VPN: 4.2.3.10 and earlier RV042G Dual Gigabit WAN VPN: 4.2.3.10 and earlier RV082 Dual WAN VPN: 4.2.3.10 and earlier RV320 Dual Gigabit WAN VPN: 1.5.1.05 and earlier RV325 Dual Gigabit WAN VPN: 1.5.1.05 and earlier The web-based management interface for these devices is available through a local LAN connection or through the remote management feature. By default, the remote management feature is disabled for the affected devices. To determine whether the remote management feature is enabled for a device, open the web-based management interface through a local LAN connection and then choose Basic Settings > Remote Management. If the Enable check box is checked, remote management is enabled for the device.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products ["#vp"] section of this advisory are known to be affected by these vulnerabilities.
Workarounds
There are no workarounds that address these vulnerabilities.
Fixed Software
Cisco has released free software updates that address the vulnerabilities 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: https://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"] Additionally, 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. 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 and Alerts 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. Customers Without Service Contracts Customers 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: https://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"] Customers 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. Fixed Releases Cisco fixed these vulnerabilities in Cisco RV320 and RV325 Dual Gigabit WAN VPN Routers Firmware Release 1.5.1.11. Cisco fixed these vulnerabilities in Cisco RV016, RV042, and RV082 Routers Firmware Release 4.2.3.14.
Vulnerability Policy
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.
Exploitation and Public Announcements
The Cisco Product Security Incident Response Team (PSIRT) is aware that proof-of-concept exploit code is available for the vulnerabilities that are described in this advisory. The Cisco PSIRT is not aware of any malicious use of the vulnerabilities that are described in this advisory.
Source
Cisco would like to thank Kai Cheng for reporting these vulnerabilities.
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.


To clipboard 

{
  "document": {
    "acknowledgments": [
      {
        "summary": "Cisco would like to thank Kai Cheng for reporting these vulnerabilities."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV320 and RV325 Series Routers and Cisco Small Business RV016, RV042, and RV082 Routers could allow an authenticated, remote attacker with administrative privileges to execute arbitrary code on an affected device.\r\n\r\nThe vulnerabilities are due to insufficient boundary restrictions on user-supplied input to scripts in the web-based management interface. An attacker with administrative privileges that are sufficient to log in to the web-based management interface could exploit each vulnerability by sending crafted requests that contain overly large values to an affected device, causing a stack overflow. A successful exploit could allow the attacker to cause the device to crash or allow the attacker to execute arbitrary code with root privileges on the underlying operating system.\r\n\r\nCisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.\r\n\r\nThis advisory is available at the following link:\r\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-routers-stack-vUxHmnNz [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-routers-stack-vUxHmnNz\"]",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "These vulnerabilities affect the following Cisco Small Business routers and firmware releases:\r\n\r\nRV016 Multi-WAN VPN: 4.2.3.10 and earlier\r\nRV042 Dual WAN VPN: 4.2.3.10 and earlier\r\nRV042G Dual Gigabit WAN VPN: 4.2.3.10 and earlier\r\nRV082 Dual WAN VPN: 4.2.3.10 and earlier\r\nRV320 Dual Gigabit WAN VPN: 1.5.1.05 and earlier\r\nRV325 Dual Gigabit WAN VPN: 1.5.1.05 and earlier\r\n\r\nThe web-based management interface for these devices is available through a local LAN connection or through the remote management feature. By default, the remote management feature is disabled for the affected devices.\r\n\r\nTo determine whether the remote management feature is enabled for a device, open the web-based management interface through a local LAN connection and then choose Basic Settings \u003e Remote Management. If the Enable check box is checked, remote management is enabled for the device.",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by these vulnerabilities.",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address these vulnerabilities.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "Cisco has released free software updates that address the vulnerabilities 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: https://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 [\"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 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  Customers Without Service Contracts\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: https://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\nCisco fixed these vulnerabilities in Cisco RV320 and RV325 Dual Gigabit WAN VPN Routers Firmware Release 1.5.1.11.\r\n\r\nCisco fixed these vulnerabilities in Cisco RV016, RV042, and RV082 Routers Firmware Release 4.2.3.14.",
        "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": "The Cisco Product Security Incident Response Team (PSIRT) is aware that proof-of-concept exploit code is available for the vulnerabilities that are described in this advisory.\r\n\r\nThe Cisco PSIRT is not aware of any malicious use of the vulnerabilities that are described in this advisory.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "Cisco would like to thank Kai Cheng for reporting these vulnerabilities.",
        "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"
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    "references": [
      {
        "category": "self",
        "summary": "Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-routers-stack-vUxHmnNz"
      },
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        "summary": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-routers-stack-vUxHmnNz",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-routers-stack-vUxHmnNz"
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      {
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        "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": "considering software upgrades",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisories and Alerts page",
        "url": "https://www.cisco.com/go/psirt"
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      {
        "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"
      },
      {
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        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
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    ],
    "title": "Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabilities",
    "tracking": {
      "current_release_date": "2020-06-17T16:00:00+00:00",
      "generator": {
        "date": "2022-10-22T03:04:06+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-rv-routers-stack-vUxHmnNz",
      "initial_release_date": "2020-06-17T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2020-06-12T16:20:06+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        }
      ],
      "status": "final",
      "version": "1.0.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_family",
            "name": "Cisco Small Business RV Series Router Firmware",
            "product": {
              "name": "Cisco Small Business RV Series Router Firmware ",
              "product_id": "CSAFPID-183630"
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2020-3293",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvt29414"
        },
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvt26705"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-183630"
        ]
      },
      "release_date": "2020-06-17T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-183630"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.2,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-183630"
          ]
        }
      ],
      "title": "Cisco Small Business RV320 and RV325 Routers Stack Overflow Arbitrary Code Execution Vulnerability"
    },
    {
      "cve": "CVE-2020-3292",
      "notes": [
        {
          "category": "other",
          "text": "Not available.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "release_date": "2020-06-17T16:00:00+00:00",
      "remediations": [
        {
          "category": "none_available",
          "details": "No remediation is available at this time."
        }
      ],
      "title": "Cisco Small Business RV320 and RV325 Routers Stack Overflow Arbitrary Code Execution Vulnerability"
    },
    {
      "cve": "CVE-2020-3286",
      "notes": [
        {
          "category": "other",
          "text": "Not available.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "release_date": "2020-06-17T16:00:00+00:00",
      "remediations": [
        {
          "category": "none_available",
          "details": "No remediation is available at this time."
        }
      ],
      "title": "Cisco Small Business RV320 and RV325 Routers Stack Overflow Arbitrary Code Execution Vulnerability"
    },
    {
      "cve": "CVE-2020-3296",
      "notes": [
        {
          "category": "other",
          "text": "Not available.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "release_date": "2020-06-17T16:00:00+00:00",
      "remediations": [
        {
          "category": "none_available",
          "details": "No remediation is available at this time."
        }
      ],
      "title": "Cisco Small Business RV320 and RV325 Routers Stack Overflow Arbitrary Code Execution Vulnerability"
    },
    {
      "cve": "CVE-2020-3294",
      "notes": [
        {
          "category": "other",
          "text": "Not available.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "release_date": "2020-06-17T16:00:00+00:00",
      "remediations": [
        {
          "category": "none_available",
          "details": "No remediation is available at this time."
        }
      ],
      "title": "Cisco Small Business RV320 and RV325 Routers Stack Overflow Arbitrary Code Execution Vulnerability"
    },
    {
      "cve": "CVE-2020-3290",
      "notes": [
        {
          "category": "other",
          "text": "Not available.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "release_date": "2020-06-17T16:00:00+00:00",
      "remediations": [
        {
          "category": "none_available",
          "details": "No remediation is available at this time."
        }
      ],
      "title": "Cisco Small Business RV320 and RV325 Routers Stack Overflow Arbitrary Code Execution Vulnerability"
    },
    {
      "cve": "CVE-2020-3289",
      "notes": [
        {
          "category": "other",
          "text": "Not available.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "release_date": "2020-06-17T16:00:00+00:00",
      "remediations": [
        {
          "category": "none_available",
          "details": "No remediation is available at this time."
        }
      ],
      "title": "Cisco Small Business RV320 and RV325 Routers Stack Overflow Arbitrary Code Execution Vulnerability"
    },
    {
      "cve": "CVE-2020-3288",
      "notes": [
        {
          "category": "other",
          "text": "Not available.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "release_date": "2020-06-17T16:00:00+00:00",
      "remediations": [
        {
          "category": "none_available",
          "details": "No remediation is available at this time."
        }
      ],
      "title": "Cisco Small Business RV320 and RV325 Routers Stack Overflow Arbitrary Code Execution Vulnerability"
    },
    {
      "cve": "CVE-2020-3291",
      "notes": [
        {
          "category": "other",
          "text": "Not available.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "release_date": "2020-06-17T16:00:00+00:00",
      "remediations": [
        {
          "category": "none_available",
          "details": "No remediation is available at this time."
        }
      ],
      "title": "Cisco Small Business RV320 and RV325 Routers Stack Overflow Arbitrary Code Execution Vulnerability"
    },
    {
      "cve": "CVE-2020-3295",
      "notes": [
        {
          "category": "other",
          "text": "Not available.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "release_date": "2020-06-17T16:00:00+00:00",
      "remediations": [
        {
          "category": "none_available",
          "details": "No remediation is available at this time."
        }
      ],
      "title": "Cisco Small Business RV320 and RV325 Routers Stack Overflow Arbitrary Code Execution Vulnerability"
    },
    {
      "cve": "CVE-2020-3287",
      "notes": [
        {
          "category": "other",
          "text": "Not available.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "release_date": "2020-06-17T16:00:00+00:00",
      "remediations": [
        {
          "category": "none_available",
          "details": "No remediation is available at this time."
        }
      ],
      "title": "Cisco Small Business RV320 and RV325 Routers Stack Overflow Arbitrary Code Execution Vulnerability"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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