==================================================================== CERT-Renater Note d'Information No. 2021/VULN069 _____________________________________________________________________ DATE : 04/02/2021 HARDWARE PLATFORM(S): Cisco Small Business VPN Routers. OPERATING SYSTEM(S): Cisco Small Business VPN Routers software. ===================================================================== https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-rce-XZeFkNHf https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-overflow-ghZP68yj https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-command-inject-BY4c5zd https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-filewrite-7x9mnKjn _____________________________________________________________________ Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Execution Vulnerabilities Critical Advisory ID: cisco-sa-rv160-260-rce-XZeFkNHf First Published: 2021 February 3 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvw13908 CSCvw13917 CSCvw19718 CSCvw19849 CSCvw27923 CSCvw27982 CSCvw50568 CVSS Score: Base 9.8 CVE-2021-1289 CVE-2021-1290 CVE-2021-1291 CVE-2021-1292 CVE-2021-1293 CVE-2021-1294 CVE-2021-1295 CWE-472 Summary Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers could allow an unauthenticated, remote attacker to execute arbitrary code as the root user on an affected device. These vulnerabilities exist because HTTP requests are not properly validated. An attacker could exploit these vulnerabilities by sending a crafted HTTP request to the web-based management interface of an affected device. A successful exploit could allow the attacker to remotely execute arbitrary code on the device. 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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-rce-XZeFkNHf Affected Products Vulnerable Products These vulnerabilities affect the following Cisco Small Business Routers if they are running a firmware release earlier than Release 1.0.01.02: RV160 VPN Router RV160W Wireless-AC VPN Router RV260 VPN Router RV260P VPN Router with POE RV260W Wireless-AC VPN Router Products Confirmed Not Vulnerable Only products listed in the Vulnerable Products section of this advisory are known to be affected by this these vulnerabilities. Cisco has confirmed that these vulnerabilities do not affect the following Cisco products: RV340 Dual WAN Gigabit VPN Router RV340W Dual WAN Gigabit Wireless-AC VPN Router RV345 Dual WAN Gigabit VPN Router RV345P Dual WAN Gigabit POE VPN Router 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 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, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, 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 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 firmware releases 1.0.01.02 and later for Cisco RV160, RV160W, RV260, RV260P, and RV260W Routers. To download the software from the Software Center on Cisco.com, do the following: Click Browse all. Choose Routers > Small Business Routers > Small Business RV Series Routers. Choose the appropriate router. Choose Small Business Router Firmware. Choose a release from the left pane of the product page. 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 the following people for reporting these vulnerabilities: T. Shiomitsu working with Trend Micro Zero Day Initiative for CVE-2021-1289, CVE-2021-1290, CVE-2021-1291, CVE-2021-1292, CVE-2021-1293, and CVE-2021-1294. swings of Chaitin Security Research Lab for CVE-2021-1293 simp1e of 1AQ Team and swings of Chaitin Security Research Lab for CVE-2021-1295 URL https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-rce-XZeFkNHf Revision History Version Description Section Status Date 1.0 Initial public release. — Final 2021-FEB-03 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. _____________________________________________________________________ Cisco Small Business RV Series Routers Management Interface Remote Command Execution and Denial of Service Vulnerabilities High Advisory ID: cisco-sa-rv-overflow-ghZP68yj First Published: 2021 February 3 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvv97027 CSCvv97031 CSCvv97034 More... CVSS Score: Base 7.2 CVE-2021-1319 CVE-2021-1320 CVE-2021-1321 More... CWE-121 Summary Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly. These vulnerabilities are due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit these vulnerabilities by sending crafted HTTP requests to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a denial of service (DoS) condition. To exploit these vulnerabilities, an attacker would need to have valid administrator credentials on the affected device. 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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-overflow-ghZP68yj Affected Products Vulnerable Products These vulnerabilities affect the following Cisco Small Business routers and firmware releases: Product Firmware Release RV016 Multi-WAN VPN Routers 4.2.3.14 and earlier RV042 Dual WAN VPN Routers 4.2.3.14 and earlier RV042G Dual Gigabit WAN VPN Routers 4.2.3.14 and earlier RV082 Dual WAN VPN Routers 4.2.3.14 and earlier RV320 Dual Gigabit WAN VPN Routers 1.5.1.11 and earlier RV325 Dual Gigabit WAN VPN Routers 1.5.1.11 and earlier The web-based management interface of these devices is available through a local LAN connection, which cannot be disabled, or through the WAN connection if the remote management feature is enabled. By default, the remote management feature is disabled for these devices. Determine the Device Configuration To determine whether the remote management feature is enabled for a device, open the web-based management interface 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 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 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, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, 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 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 1.5.1.13. Cisco has not released and will not release firmware updates for the Cisco RV016, RV042, RV042G, and RV082 Routers to address the vulnerabilities described in this advisory. These products have entered the end-of-life process. Customers are advised to refer to the end-of-life notices for these products: End-of-Sale and End-of-Life Announcement for the Cisco RV016 Multi-WAN VPN Router End-of-Sale and End-of-Life Announcement for the Cisco RV042 and RV042G VPN Router (all models) End-of-Sale and End-of-Life Announcement for the Cisco RV082 Dual WAN VPN Router Customers who are running Cisco RV016, RV042, RV042G, and RV082 Routers are encouraged to migrate to the Cisco Small Business RV340 Dual WAN Gigabit VPN Router. When considering a device migration, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the new device will be sufficient for their network needs, that new devices contain sufficient memory, and that current hardware and software configurations will continue to be supported properly by the new product. If the information is not clear, customers are advised to contact the Cisco TAC or their contracted maintenance providers. 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 described in this advisory. Source Cisco would like to thank Kai Cheng from Institute of Information Engineering, Chinese Academy of Sciences for reporting these vulnerabilities. URL https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-overflow-ghZP68yj Revision History Version Description Section Status Date 1.0 Initial public release. — Final 2021-FEB-03 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. _____________________________________________________________________ Cisco Small Business RV Series Routers Management Interface Command Injection Vulnerabilities High Advisory ID: cisco-sa-rv-command-inject-BY4c5zd First Published: 2021 February 3 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvv97021 CSCvv97022 CSCvv97023 CSCvv97024 CSCvv97025 CVSS Score: Base 7.2 CVE-2021-1314 CVE-2021-1315 CVE-2021-1316 CVE-2021-1317 CVE-2021-1318 CWE-20 Summary Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers could allow an authenticated, remote attacker to inject arbitrary commands that are executed with root privileges. These vulnerabilities are due to improper validation of user-supplied input in the web-based management interface. An attacker could exploit these vulnerabilities by sending crafted HTTP requests to a targeted device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system. To exploit these vulnerabilities, an attacker would need to have valid administrator credentials on an affected device. 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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-command-inject-BY4c5zd Affected Products Vulnerable Products These vulnerabilities affect the following Cisco Small Business routers and firmware releases: Product Firmware Release RV016 Multi-WAN VPN Routers 4.2.3.14 and earlier RV042 Dual WAN VPN Routers 4.2.3.14 and earlier RV042G Dual Gigabit WAN VPN Routers 4.2.3.14 and earlier RV082 Dual WAN VPN Routers 4.2.3.14 and earlier RV320 Dual Gigabit WAN VPN Routers 1.5.1.11 and earlier RV325 Dual Gigabit WAN VPN Routers 1.5.1.11 and earlier The web-based management interface of these devices is available through a local LAN connection, which cannot be disabled, or through the WAN connection if the remote management feature is enabled. By default, the remote management feature is disabled for these devices. Determine the Device Configuration To determine whether the remote management feature is enabled for a device, open the web-based management interface 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 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 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, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, 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 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 1.5.1.13. Cisco has not released and will not release firmware updates for the Cisco RV016, RV042, RV042G, and RV082 Routers to address the vulnerabilities described in this advisory. These products have entered the end-of-life process. Customers are advised to refer to the end-of-life notices for these products: End-of-Sale and End-of-Life Announcement for the Cisco RV016 Multi-WAN VPN Router End-of-Sale and End-of-Life Announcement for the Cisco RV042 and RV042G VPN Router (all models) End-of-Sale and End-of-Life Announcement for the Cisco RV082 Dual WAN VPN Router Customers who are running Cisco RV016, RV042, RV042G, and RV082 Routers are encouraged to migrate to the Cisco Small Business RV340 Dual WAN Gigabit VPN Router. When considering a device migration, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the new device will be sufficient for their network needs, that new devices contain sufficient memory, and that current hardware and software configurations will continue to be supported properly by the new product. If the information is not clear, customers are advised to contact the Cisco TAC or their contracted maintenance providers. 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 described in this advisory. Source Cisco would like to thank Kai Cheng from Institute of Information Engineering, Chinese Academy of Sciences for reporting these vulnerabilities. URL https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv-command-inject-BY4c5zd Revision History Version Description Section Status Date 1.0 Initial public release. — Final 2021-FEB-03 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. _____________________________________________________________________ Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Arbitrary File Write Vulnerabilities High Advisory ID: cisco-sa-rv160-260-filewrite-7x9mnKjn First Published: 2021 February 3 16:00 GMT Version 1.0: Final Workarounds: No workarounds available Cisco Bug IDs: CSCvw19856 CSCvw22856 CVSS Score: Base 7.5 CVE-2021-1296 CVE-2021-1297 CWE-36 Summary Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers could allow an unauthenticated, remote attacker to conduct directory traversal attacks and overwrite certain files that should be restricted on an affected system. These vulnerabilities are due to insufficient input validation. An attacker could exploit these vulnerabilities by using the web-based management interface to upload a file to location on an affected device that they should not have access to. A successful exploit could allow the attacker to overwrite files on the file system of the affected device. 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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-filewrite-7x9mnKjn Affected Products Vulnerable Products These vulnerabilities affect the following Cisco Small Business Routers if they are running a firmware release earlier than Release 1.0.01.02: RV160 VPN Router RV160W Wireless-AC VPN Router RV260 VPN Router RV260P VPN Router with POE RV260W Wireless-AC VPN Router Products Confirmed Not Vulnerable Only products listed in the Vulnerable Products 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: RV340 Dual WAN Gigabit VPN Router RV340W Dual WAN Gigabit Wireless-AC VPN Router RV345 Dual WAN Gigabit VPN Router RV345P Dual WAN Gigabit POE VPN Router 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 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, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, 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 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 firmware releases 1.0.01.02 and later for Cisco RV160, RV160W, RV260, RV260P, and RV260W Routers. To download the software from the Software Center on Cisco.com, do the following: Click Browse all. Choose Routers > Small Business Routers > Small Business RV Series Routers. Choose the appropriate router. Choose Small Business Router Firmware. Choose a release from the left pane of the product page. 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 T. Shiomitsu working with Trend Micro Zero Day Initiative for reporting these vulnerabilities. URL https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-rv160-260-filewrite-7x9mnKjn Revision History Version Description Section Status Date 1.0 Initial public release. — Final 2021-FEB-03 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. ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 23/25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email:cert@support.renater.fr + =========================================================