cisco-sa-rv-osinj-rce-pwtkpcjv
Vulnerability from csaf_cisco
Published
2020-09-02 16:00
Modified
2020-09-30 19:35
Summary
Cisco Small Business RV340 Series Routers Command Injection and Remote Code Execution Vulnerabilities

Notes

Summary
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV340 Series Routers could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system (OS) as a restricted user. For more information about these vulnerabilities, see the Details ["#details"] section of this advisory. 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-osinj-rce-pwTkPCJv ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-osinj-rce-pwTkPCJv"]
Vulnerable Products
These vulnerabilities affect the following Cisco Small Business Routers if they are running Firmware Release 1.0.03.19 or earlier: RV340W Dual WAN Gigabit Wireless-AC VPN Router RV340 Dual WAN Gigabit VPN Router RV345 Dual WAN Gigabit VPN Router RV345P Dual WAN Gigabit POE VPN Router The web-based management interface for these devices is available through local LAN connections by default and cannot be disabled there. The interface can also be made available through the WAN interface by enabling the remote management feature. By default, the remote management feature is disabled on 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 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. Cisco has confirmed that these vulnerabilities do not affect the following Cisco products: RV160 VPN Router RV160W Wireless-AC VPN Router RV260 VPN Router
Details
The vulnerabilities are not dependent on one another. Exploitation of one vulnerability is not required to exploit the other vulnerability. Details about the vulnerabilities are as follows. Cisco Small Business RV340 Series Routers Command Injection Vulnerability A vulnerability in the web-based management interface of Cisco Small Business RV340 Series Routers could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device. The vulnerability is due to insufficient user input validation. An attacker could exploit this vulnerability by sending malicious requests to an affected device. A successful exploit could allow the attacker to run arbitrary commands on the underlying OS. There are no workarounds that address this vulnerability. CVE-ID: CVE-2020-3451 Bug ID(s): CSCvu40103 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvu40103"] Security Impact Rating (SIR): High CVSS Base Score: 7.3 CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L Cisco Small Business RV340 Series Routers Remote Code Execution Vulnerability A vulnerability in the web-based management interface of Cisco Small Business RV340 Series Routers could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. The vulnerability is due to insufficient boundary restrictions on user-supplied input to scripts in the web-based management interface. An attacker could exploit this vulnerability by sending crafted requests that contain overly large values to an affected device, causing a buffer overflow. A successful exploit could allow the attacker to temporarily degrade the performance of the interface process or execute arbitrary code on the underlying OS. There are no workarounds that address this vulnerability. CVE-ID: CVE-2020-3453 Bug ID(s): CSCvu49391 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvu49391"] Security Impact Rating (SIR): High CVSS Base Score: 7.3 CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
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 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 Small Business RV340 Series Routers firmware releases 1.0.03.20 and later.
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 not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.
Source
Cisco would like to thank 0x00string, working with Trend Micro Zero Day Initiative (ZDI), 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.


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{
  "document": {
    "acknowledgments": [
      {
        "summary": "Cisco would like to thank 0x00string, working with Trend Micro Zero Day Initiative (ZDI), 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 RV340 Series Routers could allow an unauthenticated, remote attacker to execute arbitrary commands on the underlying operating system (OS) as a restricted user.\r\n\r\nFor more information about these vulnerabilities, see the Details [\"#details\"] section of this advisory.\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-osinj-rce-pwTkPCJv [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-osinj-rce-pwTkPCJv\"]",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "These vulnerabilities affect the following Cisco Small Business Routers if they are running Firmware Release 1.0.03.19 or earlier:\r\n\r\nRV340W Dual WAN Gigabit Wireless-AC VPN Router\r\nRV340 Dual WAN Gigabit VPN Router\r\nRV345 Dual WAN Gigabit VPN Router\r\nRV345P Dual WAN Gigabit POE VPN Router\r\n\r\nThe web-based management interface for these devices is available through local LAN connections by default and cannot be disabled there. The interface can also be made available through the WAN interface by enabling the remote management feature. By default, the remote management feature is disabled on 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 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.\r\n\r\nCisco has confirmed that these vulnerabilities do not affect the following Cisco products:\r\n\r\nRV160 VPN Router\r\nRV160W Wireless-AC VPN Router\r\nRV260 VPN Router",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "The vulnerabilities are not dependent on one another. Exploitation of one vulnerability is not required to exploit the other vulnerability.\r\n\r\nDetails about the vulnerabilities are as follows.\r\n\r\nCisco Small Business RV340 Series Routers Command Injection Vulnerability\r\n\r\nA vulnerability in the web-based management interface of Cisco Small Business RV340 Series Routers could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device.\r\n\r\nThe vulnerability is due to insufficient user input validation. An attacker could exploit this vulnerability by sending malicious requests to an affected device. A successful exploit could allow the attacker to run arbitrary commands on the underlying OS.\r\n\r\nThere are no workarounds that address this vulnerability.\r\n\r\nCVE-ID: CVE-2020-3451\r\nBug ID(s): CSCvu40103 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvu40103\"]\r\nSecurity Impact Rating (SIR): High\r\nCVSS Base Score: 7.3\r\nCVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L\r\n\r\nCisco Small Business RV340 Series Routers Remote Code Execution Vulnerability\r\n\r\nA vulnerability in the web-based management interface of Cisco Small Business RV340 Series Routers could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device.\r\n\r\nThe vulnerability is due to insufficient boundary restrictions on user-supplied input to scripts in the web-based management interface. An attacker could exploit this vulnerability by sending crafted requests that contain overly large values to an affected device, causing a buffer overflow. A successful exploit could allow the attacker to temporarily degrade the performance of the interface process or execute arbitrary code on the underlying OS.\r\n\r\nThere are no workarounds that address this vulnerability.\r\n\r\nCVE-ID: CVE-2020-3453\r\nBug ID(s): CSCvu49391 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvu49391\"]\r\nSecurity Impact Rating (SIR): High\r\nCVSS Base Score: 7.3\r\nCVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
        "title": "Details"
      },
      {
        "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:\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 [\"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.\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 Small Business RV340 Series Routers firmware releases 1.0.03.20 and later.",
        "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 not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "Cisco would like to thank 0x00string, working with Trend Micro Zero Day Initiative (ZDI), 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"
    },
    "references": [
      {
        "category": "self",
        "summary": "Cisco Small Business RV340 Series Routers Command Injection and Remote Code Execution Vulnerabilities",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-osinj-rce-pwTkPCJv"
      },
      {
        "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-rv-osinj-rce-pwTkPCJv",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-osinj-rce-pwTkPCJv"
      },
      {
        "category": "external",
        "summary": "CSCvu40103",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvu40103"
      },
      {
        "category": "external",
        "summary": "CSCvu49391",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvu49391"
      },
      {
        "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": "considering software upgrades",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "summary": "Cisco\u0026nbsp;Security Advisories 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": "Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      }
    ],
    "title": "Cisco Small Business RV340 Series Routers Command Injection and Remote Code Execution Vulnerabilities",
    "tracking": {
      "current_release_date": "2020-09-30T19:35:24+00:00",
      "generator": {
        "date": "2022-10-22T03:05:56+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-rv-osinj-rce-pwTkPCJv",
      "initial_release_date": "2020-09-02T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2020-08-31T17:41:19+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        },
        {
          "date": "2020-09-16T15:40:25+00:00",
          "number": "2.0.0",
          "summary": "Updated details about the vulnerabilities, updated information regarding the fixed releases, increased the Security Impact Rating."
        },
        {
          "date": "2020-09-17T15:13:05+00:00",
          "number": "2.1.0",
          "summary": "Corrected a typo in the Summary section."
        },
        {
          "date": "2020-09-30T19:35:24+00:00",
          "number": "3.0.0",
          "summary": "Updated availability of fixed software."
        }
      ],
      "status": "final",
      "version": "3.0.0"
    }
  },
  "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-2020-3453",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvu49391"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-183630"
        ]
      },
      "release_date": "2020-09-02T16:00:00+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": 4.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-183630"
          ]
        }
      ],
      "title": "Cisco Small Business RV340 Series Routers Remote Code Execution Vulnerability"
    },
    {
      "cve": "CVE-2020-3451",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvu40103"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-183630"
        ]
      },
      "release_date": "2020-09-02T16:00:00+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": 7.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-183630"
          ]
        }
      ],
      "title": "Cisco Small Business RV340 Series Routers Command Injection 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.
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  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.