csaf_cisco - cisco-sa-sudo-privesc-jan2021-qnyqfcm

cisco-sa-sudo-privesc-jan2021-qnyqfcm

Vulnerability from csaf_cisco

Published

2021-01-29 21:30

Modified

2021-03-16 20:43

Summary

Sudo Privilege Escalation Vulnerability Affecting Cisco Products: January 2021

Notes

Summary

A vulnerability in the command line parameter parsing code of Sudo could allow an authenticated, local attacker to execute commands or binaries with root privileges. The vulnerability is due to improper parsing of command line parameters that may result in a heap-based buffer overflow. An attacker could exploit this vulnerability by accessing a Unix shell on an affected device and then invoking the sudoedit command with crafted parameters or by executing a binary exploit. A successful exploit could allow the attacker to execute commands or binaries with root privileges. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM"]

Affected Products

Cisco investigated its product line to determine which products and services may be affected by this vulnerability. The Vulnerable Products ["#vp"] section includes Cisco bug IDs for each affected product. The bugs are accessible through the Cisco Bug Search Tool and contain additional platform-specific information, including workarounds (if available) and fixed software releases.

Vulnerable Products

The following table lists Cisco products that are affected by the vulnerability that is described in this advisory. If a future release date is indicated for software, the date provided represents an estimate based on all information known to Cisco as of the Last Updated date at the top of the advisory. Availability dates are subject to change based on a number of factors, including satisfactory testing results and delivery of other priority features and fixes. If no version or date is listed for an affected component (indicated by a blank field and/or an advisory designation of Interim), Cisco is continuing to evaluate the fix and will update the advisory as additional information becomes available. After the advisory is marked Final, customers should refer to the associated Cisco bug(s) for further details. Unless otherwise documented, all software releases prior to the first fixed release are to be considered affected by this vulnerability. Product Cisco Bug ID Fixed Release Availability ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"] Network Management and Provisioning Cisco Elastic Services Controller (ESC) CSCvx18712 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18712"] ESC-5.4.0.86 (Available) Cisco Prime Collaboration Provisioning CSCvx18714 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18714"] 12.6.SU3 (Apr 2021) Cisco Prime Service Catalog Virtual Appliance CSCvx18724 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18724"] See the bug for update information. Cisco Smart Net Total Care - On-Premises CSCvx18702 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18702"] 2.1.0.1 (Mar 2021) Cisco Smart Software Manager On-Prem CSCvx22363 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx22363"] 8-202102 (Mar 2021) Routing and Switching - Enterprise and Service Provider Cisco Nexus 3000 Series Switches CSCvx18710 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18710"] 7.0(3)I7(9) (Available)1 9.3.7 (Available) 10.1.1 (Available) Cisco Nexus 7000 Series Switches CSCvx18709 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18709"] 8.4.4 (Available) Cisco Nexus 9000 Series Switches in standalone NX-OS mode CSCvx18710 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18710"] 7.0(3)I7(9) (Available)1 9.3.7 (Available) 10.1.1 (Available) Cisco Redundancy and Configuration Manager (for 4G/5G StarOS UserPlane) CSCvx19139 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx19139"] 21.23.0 (Mar 2021) 21.22.uax (Apr 2021) Unified Computing Cisco UCS Director CSCvx18705 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18705"] 6.8 (Mar 2021) Voice and Unified Communications Devices Cisco Paging Server (InformaCast) CSCvx18737 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18737"] 12.22.1 (Mar 2021) 14.0.1 (Mar 2021) Cisco Cloud Hosted Services Cisco Common Services Platform Collector CSCvx20991 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx20991"] 2.9.0.2 (Available) See the bug for 2.8 update information. Cisco CX Cloud Agent Software CSCvx49685 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx49685"] 1.3 (Available) Cisco Ultra Cloud CSCvx21182 ["https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx21182"] 2020.02.1.i33 (Mar 2021) 1. See the bug for additional operations that may be required to fully address this vulnerability.

Products Confirmed Not Vulnerable

Only products and services listed in the Vulnerable Products ["#vulnerable"] section of this advisory are known to be affected by this vulnerability. Products that do not offer the capability for users to access an interactive terminal or to execute custom binaries in the context of the underlying Unix operating system or of a guest Unix operating system do not present an attack vector for the exploitation of this vulnerability and therefore are not considered vulnerable. Cisco has confirmed that this vulnerability does not affect the following products and services: Collaboration and Social Media Cisco Webex Meetings Server Endpoint Clients and Client Software Cisco Jabber Guest Network and Content Security Devices Cisco Adaptive Security Appliance (ASA) Software Cisco FXOS Software Cisco Firepower Threat Defense (FTD) Cisco Identity Services Engine (ISE) Network Management and Provisioning Cisco Application Policy Infrastructure Controller (APIC) Cisco Connected Mobile Experiences Cisco Data Center Network Manager (DCNM) Cisco Evolved Programmable Network Manager Cisco Policy Suite Cisco Prime Access Registrar Cisco Prime Infrastructure Cisco Prime Network Change and Configuration Management Cisco Virtual Topology System (formerly Cisco Virtual Systems Operations Center) - VTSR VM Cisco Virtualized Infrastructure Manager (VIM) Routing and Switching - Enterprise and Service Provider Cisco 8000 Series Routers Cisco ASR 5000 Series Cisco ASR 9000 Aggregation Services Routers Series Cisco Carrier Routing System (CRS) Cisco Connected Grid Routers Cisco DNA Center Cisco IOS XRv 9000 Router Cisco IOS and IOS XE Software Cisco MDS 9000 Series Multilayer Switches Cisco Network Convergence System (NCS) 540 Series Routers Cisco Network Convergence System (NCS) 560 Series Routers Cisco Network Convergence System (NCS) 1000 Series Cisco Network Convergence System (NCS) 4000 Series Cisco Network Convergence System (NCS) 5000 Series Cisco Network Convergence System (NCS) 5500 Series Cisco Network Convergence System (NCS) 6000 Series Routers Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode Cisco ONS 15454 Series Multiservice Provisioning Platforms Cisco SD-WAN vManage Cisco Stealthwatch Endpoint Concentrator Cisco Stealthwatch Flow Collector NetFlow Cisco Stealthwatch Flow Collector sFlow Cisco Stealthwatch Flow Sensor Cisco Stealthwatch Management Console (SMC) Cisco Stealthwatch UDP Director Cisco Virtual Packet Core Unified Computing Cisco Enterprise NFV Infrastructure Software (NFVIS) Voice and Unified Communications Devices Cisco ATA 190 Analog Telephone Adapter Cisco SPA112 2-Port Phone Adapter Cisco SPA122 Analog Telephone Adapter (ATA) with Router Cisco SPA232D Multi-Line DECT Analog Telephone Adapter (ATA) Video, Streaming, TelePresence, and Transcoding Devices Cisco Expressway Series Cisco TelePresence Video Communication Server (VCS) Cisco Video Surveillance Media Server Wireless Cisco Mobility Services Engine Cisco Cloud Hosted Services Cisco Jasper Control Center

Workarounds

Any workarounds will be documented in the product-specific Cisco bugs, which are identified in the Vulnerable Products ["#vulnerable"] section of this advisory.

Fixed Software

For information about fixed software releases ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"], consult the Cisco bugs identified in the Vulnerable Products ["#vulnerable"] section of this advisory. When considering software upgrades ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page ["https://www.cisco.com/go/psirt"], to determine exposure and a complete upgrade solution. In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.

Vulnerability Policy

To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy ["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 malicious use of the vulnerability that is described in this advisory.

Source

On January 26th, the Qualys Research Team disclosed the vulnerability in a public advisory.

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": "On January 26th, the Qualys Research Team disclosed the vulnerability in a public advisory."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in the command line parameter parsing code of Sudo could allow an authenticated, local attacker to execute commands or binaries with root privileges.\r\n\r\nThe vulnerability is due to improper parsing of command line parameters that may result in a heap-based buffer overflow. An attacker could exploit this vulnerability by accessing a Unix shell on an affected device and then invoking the sudoedit command with crafted parameters or by executing a binary exploit. A successful exploit could allow the attacker to execute commands or binaries with root privileges.\r\n\r\nThis advisory is available at the following link:\r\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM\"]",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "Cisco investigated its product line to determine which products and services may be affected by this vulnerability.\r\n\r\nThe Vulnerable Products [\"#vp\"] section includes Cisco bug IDs for each affected product. The bugs are accessible through the Cisco Bug Search Tool and contain additional platform-specific information, including workarounds (if available) and fixed software releases.",
        "title": "Affected Products"
      },
      {
        "category": "general",
        "text": "The following table lists Cisco products that are affected by the vulnerability that is described in this advisory. If a future release date is indicated for software, the date provided represents an estimate based on all information known to Cisco as of the Last Updated date at the top of the advisory. Availability dates are subject to change based on a number of factors, including satisfactory testing results and delivery of other priority features and fixes. If no version or date is listed for an affected component (indicated by a blank field and/or an advisory designation of Interim), Cisco is continuing to evaluate the fix and will update the advisory as additional information becomes available. After the advisory is marked Final, customers should refer to the associated Cisco bug(s) for further details. Unless otherwise documented, all software releases prior to the first fixed release are to be considered affected by this vulnerability.\r\n        Product  Cisco Bug ID  Fixed Release Availability [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"]      Network Management and Provisioning      Cisco Elastic Services Controller (ESC)  CSCvx18712 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18712\"]  ESC-5.4.0.86 (Available)      Cisco Prime Collaboration Provisioning  CSCvx18714 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18714\"]  12.6.SU3 (Apr 2021)      Cisco Prime Service Catalog Virtual Appliance  CSCvx18724 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18724\"]  See the bug for update information.      Cisco Smart Net Total Care - On-Premises  CSCvx18702 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18702\"]  2.1.0.1 (Mar 2021)      Cisco Smart Software Manager On-Prem  CSCvx22363 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx22363\"]  8-202102 (Mar 2021)      Routing and Switching - Enterprise and Service Provider      Cisco Nexus 3000 Series Switches  CSCvx18710 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18710\"]  7.0(3)I7(9) (Available)1\r\n9.3.7 (Available)\r\n10.1.1 (Available)      Cisco Nexus 7000 Series Switches  CSCvx18709 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18709\"]  8.4.4 (Available)      Cisco Nexus 9000 Series Switches in standalone NX-OS mode  CSCvx18710 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18710\"]  7.0(3)I7(9) (Available)1\r\n9.3.7 (Available)\r\n10.1.1 (Available)      Cisco Redundancy and Configuration Manager (for 4G/5G\r\nStarOS UserPlane)  CSCvx19139 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx19139\"]  21.23.0 (Mar 2021)\r\n21.22.uax (Apr 2021)      Unified Computing      Cisco UCS Director  CSCvx18705 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18705\"]  6.8 (Mar 2021)      Voice and Unified Communications Devices      Cisco Paging Server (InformaCast)  CSCvx18737 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18737\"]  12.22.1 (Mar 2021)\r\n14.0.1 (Mar 2021)      Cisco Cloud Hosted Services      Cisco Common Services Platform Collector  CSCvx20991 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx20991\"]  2.9.0.2 (Available)\r\nSee the bug for 2.8 update information.      Cisco CX Cloud Agent Software  CSCvx49685 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx49685\"]  1.3 (Available)      Cisco Ultra Cloud  CSCvx21182 [\"https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx21182\"]  2020.02.1.i33 (Mar 2021)\r\n1. See the bug for additional operations that may be required to fully address this vulnerability.",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "Only products and services listed in the Vulnerable Products [\"#vulnerable\"] section of this advisory are known to be affected by this vulnerability.\r\n\r\nProducts that do not offer the capability for users to access an interactive terminal or to execute custom binaries in the context of the underlying Unix operating system or of a guest Unix operating system do not present an attack vector for the exploitation of this vulnerability and therefore are not considered vulnerable.\r\n\r\nCisco has confirmed that this vulnerability does not affect the following products and services:\r\n\r\nCollaboration and Social Media\r\n\r\nCisco Webex Meetings Server\r\n\r\nEndpoint Clients and Client Software\r\n\r\nCisco Jabber Guest\r\n\r\nNetwork and Content Security Devices\r\n\r\nCisco Adaptive Security Appliance (ASA) Software\r\nCisco FXOS Software\r\nCisco Firepower Threat Defense (FTD)\r\nCisco Identity Services Engine (ISE)\r\n\r\nNetwork Management and Provisioning\r\n\r\nCisco Application Policy Infrastructure Controller (APIC)\r\nCisco Connected Mobile Experiences\r\nCisco Data Center Network Manager (DCNM)\r\nCisco Evolved Programmable Network Manager\r\nCisco Policy Suite\r\nCisco Prime Access Registrar\r\nCisco Prime Infrastructure\r\nCisco Prime Network Change and Configuration Management\r\nCisco Virtual Topology System (formerly Cisco Virtual Systems Operations Center) - VTSR VM\r\nCisco Virtualized Infrastructure Manager (VIM)\r\n\r\nRouting and Switching - Enterprise and Service Provider\r\n\r\nCisco 8000 Series Routers\r\nCisco ASR 5000 Series\r\nCisco ASR 9000 Aggregation Services Routers Series\r\nCisco Carrier Routing System (CRS)\r\nCisco Connected Grid Routers\r\nCisco DNA Center\r\nCisco IOS XRv 9000 Router\r\nCisco IOS and IOS XE Software\r\nCisco MDS 9000 Series Multilayer Switches\r\nCisco Network Convergence System (NCS) 540 Series Routers\r\nCisco Network Convergence System (NCS) 560 Series Routers\r\nCisco Network Convergence System (NCS) 1000 Series\r\nCisco Network Convergence System (NCS) 4000 Series\r\nCisco Network Convergence System (NCS) 5000 Series\r\nCisco Network Convergence System (NCS) 5500 Series\r\nCisco Network Convergence System (NCS) 6000 Series Routers\r\nCisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode\r\nCisco ONS 15454 Series Multiservice Provisioning Platforms\r\nCisco SD-WAN vManage\r\nCisco Stealthwatch Endpoint Concentrator\r\nCisco Stealthwatch Flow Collector NetFlow\r\nCisco Stealthwatch Flow Collector sFlow\r\nCisco Stealthwatch Flow Sensor\r\nCisco Stealthwatch Management Console (SMC)\r\nCisco Stealthwatch UDP Director\r\nCisco Virtual Packet Core\r\n\r\nUnified Computing\r\n\r\nCisco Enterprise NFV Infrastructure Software (NFVIS)\r\n\r\nVoice and Unified Communications Devices\r\n\r\nCisco ATA 190 Analog Telephone Adapter\r\nCisco SPA112 2-Port Phone Adapter\r\nCisco SPA122 Analog Telephone Adapter (ATA) with Router\r\nCisco SPA232D Multi-Line DECT Analog Telephone Adapter (ATA)\r\n\r\nVideo, Streaming, TelePresence, and Transcoding Devices\r\n\r\nCisco Expressway Series\r\nCisco TelePresence Video Communication Server (VCS)\r\nCisco Video Surveillance Media Server\r\n\r\nWireless\r\n\r\nCisco Mobility Services Engine\r\n\r\nCisco Cloud Hosted Services\r\n\r\nCisco Jasper Control Center",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "Any workarounds will be documented in the product-specific Cisco bugs, which are identified in the Vulnerable Products [\"#vulnerable\"] section of this advisory.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "For information about fixed software releases [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], consult the Cisco bugs identified in the Vulnerable Products [\"#vulnerable\"] section of this advisory.\r\n\r\nWhen considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page [\"https://www.cisco.com/go/psirt\"], to determine exposure and a complete upgrade solution.\r\n\r\nIn all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"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 malicious use of the vulnerability that is described in this advisory.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "On January 26th, the Qualys Research Team disclosed the vulnerability in a public advisory.",
        "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": "Sudo Privilege Escalation Vulnerability Affecting Cisco Products: January 2021",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM"
      },
      {
        "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-sudo-privesc-jan2021-qnYQfcM",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM"
      },
      {
        "category": "external",
        "summary": "Fixed Release Availability",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "category": "external",
        "summary": "CSCvx18712",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18712"
      },
      {
        "category": "external",
        "summary": "CSCvx18714",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18714"
      },
      {
        "category": "external",
        "summary": "CSCvx18724",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18724"
      },
      {
        "category": "external",
        "summary": "CSCvx18702",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18702"
      },
      {
        "category": "external",
        "summary": "CSCvx22363",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx22363"
      },
      {
        "category": "external",
        "summary": "CSCvx18710",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18710"
      },
      {
        "category": "external",
        "summary": "CSCvx18709",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18709"
      },
      {
        "category": "external",
        "summary": "CSCvx18710",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18710"
      },
      {
        "category": "external",
        "summary": "CSCvx19139",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx19139"
      },
      {
        "category": "external",
        "summary": "CSCvx18705",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18705"
      },
      {
        "category": "external",
        "summary": "CSCvx18737",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx18737"
      },
      {
        "category": "external",
        "summary": "CSCvx20991",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx20991"
      },
      {
        "category": "external",
        "summary": "CSCvx49685",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx49685"
      },
      {
        "category": "external",
        "summary": "CSCvx21182",
        "url": "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvx21182"
      },
      {
        "category": "external",
        "summary": "fixed software releases",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
      },
      {
        "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": "Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      }
    ],
    "title": "Sudo Privilege Escalation Vulnerability Affecting Cisco Products: January 2021",
    "tracking": {
      "current_release_date": "2021-03-16T20:43:10+00:00",
      "generator": {
        "date": "2022-10-22T03:10:14+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-sudo-privesc-jan2021-qnYQfcM",
      "initial_release_date": "2021-01-29T21:30:00+00:00",
      "revision_history": [
        {
          "date": "2021-01-29T21:36:53+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        },
        {
          "date": "2021-02-01T21:03:13+00:00",
          "number": "1.1.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable."
        },
        {
          "date": "2021-02-02T21:20:38+00:00",
          "number": "1.2.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable. Note that Cisco FXOS Software was incorrectly listed as vulnerable in a previous version of the advisory; this has been corrected because Cisco has determined that this product is not affected by this vulnerability."
        },
        {
          "date": "2021-02-03T20:08:23+00:00",
          "number": "1.3.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable."
        },
        {
          "date": "2021-02-04T21:03:43+00:00",
          "number": "1.4.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable. Note that Cisco Virtual Topology System (formerly Cisco Virtual Systems Operations Center) - VTSR VM was incorrectly listed as vulnerable in a previous version of the advisory; this has been corrected because Cisco has determined that this product is not affected by this vulnerability."
        },
        {
          "date": "2021-02-05T19:44:53+00:00",
          "number": "1.5.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable."
        },
        {
          "date": "2021-02-08T20:04:13+00:00",
          "number": "1.6.0",
          "summary": "Updated the lists of products under investigation and vulnerable products."
        },
        {
          "date": "2021-02-10T19:49:23+00:00",
          "number": "1.7.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable. Note that Cisco has confirmed that Cisco Firepower Threat Defense (FTD) is not affected by this vulnerability. It was incorrectly listed as vulnerable in a previous version of the advisory."
        },
        {
          "date": "2021-02-11T20:22:13+00:00",
          "number": "1.8.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable."
        },
        {
          "date": "2021-02-16T18:34:25+00:00",
          "number": "1.9.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable."
        },
        {
          "date": "2021-02-19T20:40:52+00:00",
          "number": "1.10.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable."
        },
        {
          "date": "2021-02-22T21:38:52+00:00",
          "number": "1.11.0",
          "summary": "Updated the lists of products under investigation, vulnerable products, and products confirmed not vulnerable. Note that upon further investigation Cisco has confirmed that Cisco Application Policy Infrastructure Controller (APIC) is not affected by this vulnerability. It was incorrectly listed as vulnerable in a previous version of the advisory."
        },
        {
          "date": "2021-02-25T21:48:04+00:00",
          "number": "1.12.0",
          "summary": "Updated the lists of vulnerable products and products confirmed not vulnerable. Removed references to ongoing investigation."
        },
        {
          "date": "2021-03-02T21:17:24+00:00",
          "number": "1.13.0",
          "summary": "Updated the list of vulnerable products."
        },
        {
          "date": "2021-03-11T20:49:19+00:00",
          "number": "1.14.0",
          "summary": "Updated the lists of vulnerable products and products confirmed not vulnerable."
        },
        {
          "date": "2021-03-16T20:43:10+00:00",
          "number": "1.15.0",
          "summary": "Updated the list of vulnerable products."
        }
      ],
      "status": "final",
      "version": "1.15.0"
    }
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2021-3156",
      "notes": [
        {
          "category": "general",
          "text": "No additional information for this vulneraiblity is currently avaialbe.",
          "title": "No Notes"
        }
      ],
      "release_date": "2021-01-29T21:30:00+00:00",
      "remediations": [
        {
          "category": "none_available",
          "details": "No remediation is available at this time."
        }
      ],
      "title": "Sudo  Privilege Escalation Vulnerability Affecting Cisco Products: January 2021"
    }
  ]
}

cve-2021-3156

Vulnerability from cvelistv5

Published

2021-01-26 00:00

Modified

2024-09-18 16:41

Severity ?

Summary

Sudo before 1.9.5p2 contains an off-by-one error that can result in a heap-based buffer overflow, which allows privilege escalation to root via "sudoedit -s" and a command-line argument that ends with a single backslash character.

References

▼	URL	Tags
	https://lists.debian.org/debian-lts-announce/2021/01/msg00022.html	mailing-list
	http://seclists.org/fulldisclosure/2021/Jan/79	mailing-list
	http://www.openwall.com/lists/oss-security/2021/01/26/3	mailing-list
	https://security.gentoo.org/glsa/202101-33	vendor-advisory
	https://www.debian.org/security/2021/dsa-4839	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LHXK6ICO5AYLGFK2TAX5MZKUXTUKWOJY/	vendor-advisory
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CALA5FTXIQBRRYUA2ZQNJXB6OQMAXEII/	vendor-advisory
	http://www.openwall.com/lists/oss-security/2021/01/27/1	mailing-list
	http://www.openwall.com/lists/oss-security/2021/01/27/2	mailing-list
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sudo-privesc-jan2021-qnYQfcM	vendor-advisory
	https://www.kb.cert.org/vuls/id/794544	third-party-advisory
	http://seclists.org/fulldisclosure/2021/Feb/42	mailing-list
	http://www.openwall.com/lists/oss-security/2021/02/15/1	mailing-list
	https://www.oracle.com//security-alerts/cpujul2021.html
	https://www.sudo.ws/stable.html#1.9.5p2
	https://www.openwall.com/lists/oss-security/2021/01/26/3
	http://packetstormsecurity.com/files/161160/Sudo-Heap-Based-Buffer-Overflow.html
	https://security.netapp.com/advisory/ntap-20210128-0002/
	https://security.netapp.com/advisory/ntap-20210128-0001/
	http://packetstormsecurity.com/files/161230/Sudo-Buffer-Overflow-Privilege-Escalation.html
	http://packetstormsecurity.com/files/161270/Sudo-1.9.5p1-Buffer-Overflow-Privilege-Escalation.html
	http://packetstormsecurity.com/files/161293/Sudo-1.8.31p2-1.9.5p1-Buffer-Overflow.html
	https://support.apple.com/kb/HT212177
	https://kc.mcafee.com/corporate/index?page=content&id=SB10348
	https://www.beyondtrust.com/blog/entry/security-advisory-privilege-management-for-unix-linux-pmul-basic-and-privilege-management-for-mac-pmm-affected-by-sudo-vulnerability
	https://www.synology.com/security/advisory/Synology_SA_21_02
	http://www.openwall.com/lists/oss-security/2021/09/14/2	mailing-list
	https://www.oracle.com/security-alerts/cpuoct2021.html
	https://www.oracle.com/security-alerts/cpuapr2022.html
	http://www.openwall.com/lists/oss-security/2024/01/30/8	mailing-list
	http://www.openwall.com/lists/oss-security/2024/01/30/6	mailing-list
	http://packetstormsecurity.com/files/176932/glibc-syslog-Heap-Based-Buffer-Overflow.html
	http://seclists.org/fulldisclosure/2024/Feb/3	mailing-list
	https://www.vicarius.io/vsociety/posts/sudoedit-pwned-cve-2021-3156

Impacted products

▼	Vendor	Product
	n/a	n/a

Show details on NVD website

JSON

To clipboard

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    "assignerShortName": "mitre",
    "cveId": "CVE-2021-3156",
    "datePublished": "2021-01-26T00:00:00",
    "dateReserved": "2021-01-15T00:00:00",
    "dateUpdated": "2024-09-18T16:41:27.031257",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

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

Action not permitted

cisco-sa-sudo-privesc-jan2021-qnyqfcm

Vulnerability from csaf_cisco

cve-2021-3156

Vulnerability from cvelistv5

Tags

Sightings

Nomenclature