{"id":"CVE-2021-1461","state":"PUBLISHED","title":"Cisco SD-WAN Software Signature Verification Bypass Vulnerability","description":"A vulnerability in the Image Signature Verification feature of Cisco&nbsp;SD-WAN Software could allow an authenticated, remote attacker with Administrator-level credentials to install a malicious software patch on an affected device.\r\nThe vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.Cisco&nbsp;has released software updates that address the vulnerability described in this advisory. There are no workarounds that address this vulnerability.","publishedAt":"2024-11-18T15:33:06.681Z","updatedAt":"2024-11-18T15:53:00.942Z","severity":{"score":4.9,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N/RL:X/RC:X/E:X","source":"cisco"},"assigner":"cisco","products":["Cisco Cisco Catalyst SD-WAN Manager","Cisco Cisco SD-WAN vEdge Router"],"affected":[{"vendor":"Cisco","product":"Cisco Catalyst SD-WAN Manager","defaultStatus":"unknown","versions":[{"version":"19.2.1","status":"affected"},{"version":"18.4.4","status":"affected"},{"version":"19.3.0","status":"affected"},{"version":"19.2.2","status":"affected"},{"version":"19.2.099","status":"affected"},{"version":"18.3.6","status":"affected"},{"version":"18.3.7","status":"affected"},{"version":"19.2.0","status":"affected"},{"version":"18.3.8","status":"affected"},{"version":"19.0.0","status":"affected"},{"version":"19.1.0","status":"affected"},{"version":"18.4.302","status":"affected"},{"version":"18.4.303","status":"affected"},{"version":"19.2.097","status":"affected"},{"version":"19.2.098","status":"affected"},{"version":"17.2.10","status":"affected"},{"version":"18.3.6.1","status":"affected"},{"version":"19.0.1a","status":"affected"},{"version":"18.2.0","status":"affected"},{"version":"18.4.3","status":"affected"},{"version":"18.4.1","status":"affected"},{"version":"17.2.8","status":"affected"},{"version":"18.3.3.1","status":"affected"},{"version":"18.4.0","status":"affected"},{"version":"18.3.1","status":"affected"},{"version":"17.2.6","status":"affected"},{"version":"17.2.9","status":"affected"},{"version":"18.3.4","status":"affected"},{"version":"17.2.5","status":"affected"},{"version":"18.3.1.1","status":"affected"},{"version":"18.3.5","status":"affected"},{"version":"18.4.0.1","status":"affected"},{"version":"18.3.3","status":"affected"},{"version":"17.2.7","status":"affected"},{"version":"17.2.4","status":"affected"},{"version":"18.3.0","status":"affected"},{"version":"19.2.3","status":"affected"},{"version":"19.2.929","status":"affected"},{"version":"19.2.31","status":"affected"},{"version":"19.2.32","status":"affected"},{"version":"19.2.4","status":"affected"}]},{"vendor":"Cisco","product":"Cisco SD-WAN vEdge Router","defaultStatus":"unknown","versions":[{"version":"18.4.303","status":"affected"},{"version":"18.3.7","status":"affected"},{"version":"19.3.0","status":"affected"},{"version":"18.2.0","status":"affected"},{"version":"19.2.099","status":"affected"},{"version":"17.2.10","status":"affected"},{"version":"18.3.3","status":"affected"},{"version":"18.3.6","status":"affected"},{"version":"19.0.0","status":"affected"},{"version":"17.2.6","status":"affected"},{"version":"18.4.0","status":"affected"},{"version":"19.1.01","status":"affected"},{"version":"19.2.098","status":"affected"},{"version":"18.3.1","status":"affected"},{"version":"18.4.302","status":"affected"},{"version":"19.2.2","status":"affected"},{"version":"18.3.5","status":"affected"},{"version":"17.2.9","status":"affected"},{"version":"19.1.0","status":"affected"},{"version":"19.2.097","status":"affected"},{"version":"17.2.5","status":"affected"},{"version":"17.2.8","status":"affected"},{"version":"18.3.8","status":"affected"},{"version":"18.3.0","status":"affected"},{"version":"18.4.3","status":"affected"},{"version":"18.4.4","status":"affected"},{"version":"19.2.1","status":"affected"},{"version":"17.2.4","status":"affected"},{"version":"18.3.4","status":"affected"},{"version":"19.0.1a","status":"affected"},{"version":"17.2.7","status":"affected"},{"version":"18.4.1","status":"affected"},{"version":"19.2.0","status":"affected"},{"version":"19.2.3","status":"affected"},{"version":"19.2.929","status":"affected"},{"version":"19.2.31","status":"affected"},{"version":"19.2.32","status":"affected"},{"version":"19.2.4","status":"affected"}]}],"references":["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-sigverbypass-gPYXd6Mk","https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-webui-gQLSFyPM"],"weaknesses":["CWE-347"],"ingestedAt":"2026-10-29T19:47:52.848Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/1xxx/CVE-2021-1461.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-1461","state":"PUBLISHED","datePublished":"2024-11-18T15:33:06.681Z","dateUpdated":"2024-11-18T15:53:00.942Z","assignerShortName":"cisco","assignerOrgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateReserved":"2020-11-13T00:00:00.000Z"},"containers":{"cna":{"title":"Cisco SD-WAN Software Signature Verification Bypass Vulnerability","descriptions":[{"lang":"en","value":"A vulnerability in the Image Signature Verification feature of Cisco&nbsp;SD-WAN Software could allow an authenticated, remote attacker with Administrator-level credentials to install a malicious software patch on an affected device.\r\nThe vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image.Cisco&nbsp;has released software updates that address the vulnerability described in this advisory. There are no workarounds that address this vulnerability."}],"affected":[{"vendor":"Cisco","product":"Cisco Catalyst SD-WAN Manager","defaultStatus":"unknown","versions":[{"version":"19.2.1","status":"affected"},{"version":"18.4.4","status":"affected"},{"version":"19.3.0","status":"affected"},{"version":"19.2.2","status":"affected"},{"version":"19.2.099","status":"affected"},{"version":"18.3.6","status":"affected"},{"version":"18.3.7","status":"affected"},{"version":"19.2.0","status":"affected"},{"version":"18.3.8","status":"affected"},{"version":"19.0.0","status":"affected"},{"version":"19.1.0","status":"affected"},{"version":"18.4.302","status":"affected"},{"version":"18.4.303","status":"affected"},{"version":"19.2.097","status":"affected"},{"version":"19.2.098","status":"affected"},{"version":"17.2.10","status":"affected"},{"version":"18.3.6.1","status":"affected"},{"version":"19.0.1a","status":"affected"},{"version":"18.2.0","status":"affected"},{"version":"18.4.3","status":"affected"},{"version":"18.4.1","status":"affected"},{"version":"17.2.8","status":"affected"},{"version":"18.3.3.1","status":"affected"},{"version":"18.4.0","status":"affected"},{"version":"18.3.1","status":"affected"},{"version":"17.2.6","status":"affected"},{"version":"17.2.9","status":"affected"},{"version":"18.3.4","status":"affected"},{"version":"17.2.5","status":"affected"},{"version":"18.3.1.1","status":"affected"},{"version":"18.3.5","status":"affected"},{"version":"18.4.0.1","status":"affected"},{"version":"18.3.3","status":"affected"},{"version":"17.2.7","status":"affected"},{"version":"17.2.4","status":"affected"},{"version":"18.3.0","status":"affected"},{"version":"19.2.3","status":"affected"},{"version":"19.2.929","status":"affected"},{"version":"19.2.31","status":"affected"},{"version":"19.2.32","status":"affected"},{"version":"19.2.4","status":"affected"}]},{"vendor":"Cisco","product":"Cisco SD-WAN vEdge Router","defaultStatus":"unknown","versions":[{"version":"18.4.303","status":"affected"},{"version":"18.3.7","status":"affected"},{"version":"19.3.0","status":"affected"},{"version":"18.2.0","status":"affected"},{"version":"19.2.099","status":"affected"},{"version":"17.2.10","status":"affected"},{"version":"18.3.3","status":"affected"},{"version":"18.3.6","status":"affected"},{"version":"19.0.0","status":"affected"},{"version":"17.2.6","status":"affected"},{"version":"18.4.0","status":"affected"},{"version":"19.1.01","status":"affected"},{"version":"19.2.098","status":"affected"},{"version":"18.3.1","status":"affected"},{"version":"18.4.302","status":"affected"},{"version":"19.2.2","status":"affected"},{"version":"18.3.5","status":"affected"},{"version":"17.2.9","status":"affected"},{"version":"19.1.0","status":"affected"},{"version":"19.2.097","status":"affected"},{"version":"17.2.5","status":"affected"},{"version":"17.2.8","status":"affected"},{"version":"18.3.8","status":"affected"},{"version":"18.3.0","status":"affected"},{"version":"18.4.3","status":"affected"},{"version":"18.4.4","status":"affected"},{"version":"19.2.1","status":"affected"},{"version":"17.2.4","status":"affected"},{"version":"18.3.4","status":"affected"},{"version":"19.0.1a","status":"affected"},{"version":"17.2.7","status":"affected"},{"version":"18.4.1","status":"affected"},{"version":"19.2.0","status":"affected"},{"version":"19.2.3","status":"affected"},{"version":"19.2.929","status":"affected"},{"version":"19.2.31","status":"affected"},{"version":"19.2.32","status":"affected"},{"version":"19.2.4","status":"affected"}]}],"references":[{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sdwan-sigverbypass-gPYXd6Mk","name":"cisco-sa-sdwan-sigverbypass-gPYXd6Mk"},{"url":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-webui-gQLSFyPM","name":"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-xss-webui-gQLSFyPM</a></p><p>This advisory is part of the October 2021 release of the Cisco&nbsp;ASA, FTD, and FMC Security Advisory Bundled publication. For a complete list of the advisories and links to them, see <a href=\"https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74773\">Cisco&nbsp;Event Response: October 2021 Cisco&nbsp;ASA, FMC, and FTD Software Security Advisory Bundled Publication"}],"metrics":[{"format":"cvssV3_1","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N/RL:X/RC:X/E:X","baseScore":4.9,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"HIGH","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"HIGH","availabilityImpact":"NONE"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-347","lang":"en","description":"Improper Verification of Cryptographic Signature","type":"cwe"}]}],"providerMetadata":{"shortName":"cisco","orgId":"d1c1063e-7a18-46af-9102-31f8928bc633","dateUpdated":"2024-11-18T15:33:06.681Z"},"exploits":[{"lang":"en","value":"The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."}],"source":{"advisory":"cisco-sa-sdwan-sigverbypass-gPYXd6Mk","discovery":"INTERNAL","defects":["CSCvs92954"]}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-11-18T15:52:43.584510Z","id":"CVE-2021-1461","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-11-18T15:53:00.942Z"}}]}}}