cisco-sa-qfp-ipsec-gqmqvtqv
Vulnerability from csaf_cisco
Published
2022-04-13 16:00
Modified
2022-04-13 16:00
Summary
Cisco IOS XE Software IPSec Denial of Service Vulnerability
Notes
Summary
A vulnerability in the IPSec decryption routine of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition.
This vulnerability is due to buffer exhaustion that occurs while traffic on a configured IPsec tunnel is being processed. An attacker could exploit this vulnerability by sending traffic to an affected device that has a maximum transmission unit (MTU) of 1800 bytes or greater. A successful exploit could allow the attacker to cause the device to reload.
To exploit this vulnerability, the attacker may need access to the trusted network where the affected device is in order to send specific packets to be processed by the device. All network devices between the attacker and the affected device must support an MTU of 1800 bytes or greater. This access requirement could limit the possibility of a successful exploit.
Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.
This advisory is available at the following link:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-qfp-ipsec-GQmqvtqV ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-qfp-ipsec-GQmqvtqV"]
This advisory is part of the April 2022 release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: April 2022 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication. ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74561"]
Vulnerable Products
At the time of publication, this vulnerability affected the following Cisco products if they were configured to terminate IPsec VPN connections and were running a vulnerable release of Cisco IOS XE Software that was running in autonomous or controller mode:
1000 Series Integrated Services Routers
4221 Integrated Services Routers
4321 Integrated Services Routers
4331 Integrated Services Routers
4351 Integrated Services Routers
Catalyst 8200 Series Edge Platform
Catalyst 8300 Series Edge Platform
For information about which Cisco software releases are vulnerable, see the Fixed Software ["#fs"] section of this advisory.
Determine the Device Configuration
A device that is running Cisco IOS XE Software is configured to terminate IPsec VPN connections. If one of the following conditions match, the device is affected:
A crypto map is configured for at least one interface
The device is configured with IPsec virtual tunnel interfaces (VTIs)
The MTU of the interface that is used for encryption must also be increased to 1800 bytes or greater.
To determine whether a crypto map is configured for at least one interface, use the show running-config | include ^interface|^ crypto map |^ mtu command. The following example shows a crypto map named map-group1 and increased MTU configured on the GigabitEthernet 0/0/0 interface:
Router# show running-config | include ^interface|^ crypto map |^ mtu
interface GigabitEthernet0/0/0
mtu 1800
crypto map map-group1
To determine whether the device is configured with IPsec VTIs, use the show running-config | include ^interface|^ tunnel protection ipsec profile |^ mtu command and verify that the returned output contains tunnel protection ipsec profile configured under at least one tunnel interface and that the MTU has been increased on the physical interface associated to the tunnel. The following example shows VTI interface Tunnel1 and increased MTU on GigabitEthernet0/0/0:
Router# show running-config | include ^interface|^ tunnel protection ipsec profile |^ mtu
interface Tunnel1
tunnel protection ipsec profile vti-1
interface GigabitEthernet0/0/0
mtu 1800
Note: IPsec VPN is not configured by default.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products ["#vp"] section of this advisory are known to be affected by this vulnerability.
Cisco has confirmed that this vulnerability does not affect the following Cisco products:
IOS Software
IOS XR Software
Meraki products
NX-OS Software
Workarounds
There is a workaround that addresses this vulnerability. Lower the MTU to less than 1800 bytes on all IPsec-enabled interfaces on affected devices by using the following command:
Router(config-if)#mtu 1750
Note: This will require changing the MTU on all peers of the IPsec connection.
While this workaround has been deployed and proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.
Fixed Software
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.
Cisco IOS and IOS XE Software
To help customers determine their exposure to vulnerabilities in Cisco IOS and IOS XE Software, Cisco provides the Cisco Software Checker ["https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"] to identify any Cisco Security Advisories that impact a specific software release and the earliest release that fixes the vulnerabilities described in each advisory (“First Fixed”). If applicable, the tool also returns the earliest release that fixes all the vulnerabilities described in all the advisories identified (“Combined First Fixed”).
Customers can use the Cisco Software Checker ["https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"] to search advisories in the following ways:
Choose the software and one or more releases
Upload a .txt file that includes a list of specific releases
Enter the output of the show version command
After initiating a search, customers can customize the search to include all Cisco Security Advisories, a specific advisory, or all advisories in the most recent bundled publication.
Customers can also use the following form to determine whether a release is affected by any Cisco Security Advisory by entering a Cisco IOS or IOS XE Software release—for example, 15.1(4)M2 or 3.13.8S:
By default, the Cisco Software Checker ["https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"] includes results only for vulnerabilities that have a Critical or High Security Impact Rating (SIR). To include results for Medium SIR vulnerabilities, customers can use the Cisco Software Checker on Cisco.com and check the Medium check box in the drop-down list under Impact Rating when customizing a search.
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 vulnerability that is described in this advisory.
Source
This vulnerability was found during the resolution of a Cisco TAC support case.
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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"category": "summary",
"text": "A vulnerability in the IPSec decryption routine of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition.\r\n\r\nThis vulnerability is due to buffer exhaustion that occurs while traffic on a configured IPsec tunnel is being processed. An attacker could exploit this vulnerability by sending traffic to an affected device that has a maximum transmission unit (MTU) of 1800 bytes or greater. A successful exploit could allow the attacker to cause the device to reload.\r\n\r\nTo exploit this vulnerability, the attacker may need access to the trusted network where the affected device is in order to send specific packets to be processed by the device. All network devices between the attacker and the affected device must support an MTU of 1800 bytes or greater. This access requirement could limit the possibility of a successful exploit.\r\n\r\nCisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.\r\n\r\nThis advisory is available at the following link:\r\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-qfp-ipsec-GQmqvtqV [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-qfp-ipsec-GQmqvtqV\"]\r\n\r\nThis advisory is part of the April 2022 release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication. For a complete list of the advisories and links to them, see Cisco Event Response: April 2022 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication. [\"https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74561\"]",
"title": "Summary"
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"text": "At the time of publication, this vulnerability affected the following Cisco products if they were configured to terminate IPsec VPN connections and were running a vulnerable release of Cisco IOS XE Software that was running in autonomous or controller mode:\r\n\r\n1000 Series Integrated Services Routers\r\n4221 Integrated Services Routers\r\n4321 Integrated Services Routers\r\n4331 Integrated Services Routers\r\n4351 Integrated Services Routers\r\nCatalyst 8200 Series Edge Platform\r\nCatalyst 8300 Series Edge Platform\r\n\r\nFor information about which Cisco software releases are vulnerable, see the Fixed Software [\"#fs\"] section of this advisory.\r\n Determine the Device Configuration\r\nA device that is running Cisco IOS XE Software is configured to terminate IPsec VPN connections. If one of the following conditions match, the device is affected:\r\n\r\nA crypto map is configured for at least one interface\r\nThe device is configured with IPsec virtual tunnel interfaces (VTIs)\r\n\r\nThe MTU of the interface that is used for encryption must also be increased to 1800 bytes or greater.\r\n\r\nTo determine whether a crypto map is configured for at least one interface, use the show running-config | include ^interface|^ crypto map |^ mtu command. The following example shows a crypto map named map-group1 and increased MTU configured on the GigabitEthernet 0/0/0 interface:\r\n\r\n\r\nRouter# show running-config | include ^interface|^ crypto map |^ mtu\r\ninterface GigabitEthernet0/0/0\r\nmtu 1800\r\ncrypto map map-group1\r\n\r\nTo determine whether the device is configured with IPsec VTIs, use the show running-config | include ^interface|^ tunnel protection ipsec profile |^ mtu command and verify that the returned output contains tunnel protection ipsec profile configured under at least one tunnel interface and that the MTU has been increased on the physical interface associated to the tunnel. The following example shows VTI interface Tunnel1 and increased MTU on GigabitEthernet0/0/0:\r\n\r\n\r\nRouter# show running-config | include ^interface|^ tunnel protection ipsec profile |^ mtu\r\ninterface Tunnel1\r\n tunnel protection ipsec profile vti-1\r\ninterface GigabitEthernet0/0/0\r\n mtu 1800\r\n\r\nNote: IPsec VPN is not configured by default.",
"title": "Vulnerable Products"
},
{
"category": "general",
"text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.\r\n\r\nCisco has confirmed that this vulnerability does not affect the following Cisco products:\r\n\r\nIOS Software\r\nIOS XR Software\r\nMeraki products\r\nNX-OS Software",
"title": "Products Confirmed Not Vulnerable"
},
{
"category": "general",
"text": "There is a workaround that addresses this vulnerability. Lower the MTU to less than 1800 bytes on all IPsec-enabled interfaces on affected devices by using the following command:\r\n\r\n\r\nRouter(config-if)#mtu 1750\r\n\r\nNote: This will require changing the MTU on all peers of the IPsec connection.\r\n\r\nWhile this workaround has been deployed and proven successful in a test environment, customers should determine the applicability and effectiveness in their own environment and under their own use conditions. Customers should be aware that any workaround or mitigation that is implemented may negatively impact the functionality or performance of their network based on intrinsic customer deployment scenarios and limitations. Customers should not deploy any workarounds or mitigations before first evaluating the applicability to their own environment and any impact to such environment.",
"title": "Workarounds"
},
{
"category": "general",
"text": "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.\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 Cisco IOS and IOS XE Software\r\nTo help customers determine their exposure to vulnerabilities in Cisco IOS and IOS XE Software, Cisco provides the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] to identify any Cisco Security Advisories that impact a specific software release and the earliest release that fixes the vulnerabilities described in each advisory (\u201cFirst Fixed\u201d). If applicable, the tool also returns the earliest release that fixes all the vulnerabilities described in all the advisories identified (\u201cCombined First Fixed\u201d).\r\n\r\nCustomers can use the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] to search advisories in the following ways:\r\n\r\nChoose the software and one or more releases\r\nUpload a .txt file that includes a list of specific releases\r\nEnter the output of the show version command\r\n\r\nAfter initiating a search, customers can customize the search to include all Cisco Security Advisories, a specific advisory, or all advisories in the most recent bundled publication.\r\n\r\nCustomers can also use the following form to determine whether a release is affected by any Cisco Security Advisory by entering a Cisco IOS or IOS XE Software release\u2014for example, 15.1(4)M2 or 3.13.8S:\r\n\r\n\r\n\r\nBy default, the Cisco Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] includes results only for vulnerabilities that have a Critical or High Security Impact Rating (SIR). To include results for Medium SIR vulnerabilities, customers can use the Cisco Software Checker on Cisco.com and check the Medium check box in the drop-down list under Impact Rating when customizing a search.",
"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 vulnerability that is described in this advisory.",
"title": "Exploitation and Public Announcements"
},
{
"category": "general",
"text": "This vulnerability was found during the resolution of a Cisco TAC support case.",
"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",
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"category": "external",
"summary": "Cisco\u0026nbsp;Event Response: April 2022 Semiannual Cisco\u0026nbsp;IOS and IOS XE Software Security Advisory Bundled Publication.",
"url": "https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-74561"
},
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"url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"
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"url": "https://www.cisco.com/go/psirt"
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"url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"
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"url": "https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"
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"title": "Cisco IOS XE Software IPSec Denial of Service Vulnerability",
"tracking": {
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"category": "service_pack",
"name": "16.12.1c",
"product": {
"name": "16.12.1c",
"product_id": "CSAFPID-267110"
}
},
{
"category": "service_pack",
"name": "16.12.2",
"product": {
"name": "16.12.2",
"product_id": "CSAFPID-267605"
}
},
{
"category": "service_pack",
"name": "16.12.3",
"product": {
"name": "16.12.3",
"product_id": "CSAFPID-273445"
}
},
{
"category": "service_pack",
"name": "16.12.2s",
"product": {
"name": "16.12.2s",
"product_id": "CSAFPID-273509"
}
},
{
"category": "service_pack",
"name": "16.12.2t",
"product": {
"name": "16.12.2t",
"product_id": "CSAFPID-275538"
}
},
{
"category": "service_pack",
"name": "16.12.4",
"product": {
"name": "16.12.4",
"product_id": "CSAFPID-277147"
}
},
{
"category": "service_pack",
"name": "16.12.3s",
"product": {
"name": "16.12.3s",
"product_id": "CSAFPID-277255"
}
},
{
"category": "service_pack",
"name": "16.12.5",
"product": {
"name": "16.12.5",
"product_id": "CSAFPID-280463"
}
},
{
"category": "service_pack",
"name": "16.12.6",
"product": {
"name": "16.12.6",
"product_id": "CSAFPID-280937"
}
}
],
"category": "product_version",
"name": "16.12"
},
{
"branches": [
{
"category": "service_pack",
"name": "17.1.1",
"product": {
"name": "17.1.1",
"product_id": "CSAFPID-245377"
}
},
{
"category": "service_pack",
"name": "17.1.1s",
"product": {
"name": "17.1.1s",
"product_id": "CSAFPID-274818"
}
},
{
"category": "service_pack",
"name": "17.1.2",
"product": {
"name": "17.1.2",
"product_id": "CSAFPID-277338"
}
},
{
"category": "service_pack",
"name": "17.1.1t",
"product": {
"name": "17.1.1t",
"product_id": "CSAFPID-277348"
}
},
{
"category": "service_pack",
"name": "17.1.3",
"product": {
"name": "17.1.3",
"product_id": "CSAFPID-280652"
}
}
],
"category": "product_version",
"name": "17.1"
},
{
"branches": [
{
"category": "service_pack",
"name": "17.2.1",
"product": {
"name": "17.2.1",
"product_id": "CSAFPID-251225"
}
},
{
"category": "service_pack",
"name": "17.2.1r",
"product": {
"name": "17.2.1r",
"product_id": "CSAFPID-277194"
}
},
{
"category": "service_pack",
"name": "17.2.1v",
"product": {
"name": "17.2.1v",
"product_id": "CSAFPID-278002"
}
},
{
"category": "service_pack",
"name": "17.2.2",
"product": {
"name": "17.2.2",
"product_id": "CSAFPID-278504"
}
},
{
"category": "service_pack",
"name": "17.2.3",
"product": {
"name": "17.2.3",
"product_id": "CSAFPID-280939"
}
}
],
"category": "product_version",
"name": "17.2"
},
{
"branches": [
{
"category": "service_pack",
"name": "17.3.1",
"product": {
"name": "17.3.1",
"product_id": "CSAFPID-254712"
}
},
{
"category": "service_pack",
"name": "17.3.2",
"product": {
"name": "17.3.2",
"product_id": "CSAFPID-277099"
}
},
{
"category": "service_pack",
"name": "17.3.3",
"product": {
"name": "17.3.3",
"product_id": "CSAFPID-278019"
}
},
{
"category": "service_pack",
"name": "17.3.1a",
"product": {
"name": "17.3.1a",
"product_id": "CSAFPID-279338"
}
},
{
"category": "service_pack",
"name": "17.3.4",
"product": {
"name": "17.3.4",
"product_id": "CSAFPID-282028"
}
},
{
"category": "service_pack",
"name": "17.3.4a",
"product": {
"name": "17.3.4a",
"product_id": "CSAFPID-284178"
}
}
],
"category": "product_version",
"name": "17.3"
},
{
"branches": [
{
"category": "service_pack",
"name": "17.4.1",
"product": {
"name": "17.4.1",
"product_id": "CSAFPID-262588"
}
},
{
"category": "service_pack",
"name": "17.4.2",
"product": {
"name": "17.4.2",
"product_id": "CSAFPID-278020"
}
},
{
"category": "service_pack",
"name": "17.4.1a",
"product": {
"name": "17.4.1a",
"product_id": "CSAFPID-280770"
}
},
{
"category": "service_pack",
"name": "17.4.1b",
"product": {
"name": "17.4.1b",
"product_id": "CSAFPID-280899"
}
}
],
"category": "product_version",
"name": "17.4"
},
{
"branches": [
{
"category": "service_pack",
"name": "17.5.1",
"product": {
"name": "17.5.1",
"product_id": "CSAFPID-262590"
}
},
{
"category": "service_pack",
"name": "17.5.1a",
"product": {
"name": "17.5.1a",
"product_id": "CSAFPID-282046"
}
},
{
"category": "service_pack",
"name": "17.5.1b",
"product": {
"name": "17.5.1b",
"product_id": "CSAFPID-290596"
}
}
],
"category": "product_version",
"name": "17.5"
},
{
"branches": [
{
"category": "service_pack",
"name": "17.6.1",
"product": {
"name": "17.6.1",
"product_id": "CSAFPID-262592"
}
},
{
"category": "service_pack",
"name": "17.6.1a",
"product": {
"name": "17.6.1a",
"product_id": "CSAFPID-284179"
}
}
],
"category": "product_version",
"name": "17.6"
}
],
"category": "product_family",
"name": "Cisco IOS XE Software"
},
{
"category": "product_family",
"name": "Cisco IOS XE Software",
"product": {
"name": "Cisco IOS XE Software ",
"product_id": "CSAFPID-93036"
}
}
],
"category": "vendor",
"name": "Cisco"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2022-20679",
"ids": [
{
"system_name": "Cisco Bug ID",
"text": "CSCvz55575"
}
],
"notes": [
{
"category": "other",
"text": "Complete.",
"title": "Affected Product Comprehensiveness"
}
],
"product_status": {
"known_affected": [
"CSAFPID-218905",
"CSAFPID-225856",
"CSAFPID-225858",
"CSAFPID-227918",
"CSAFPID-227920",
"CSAFPID-232008",
"CSAFPID-236834",
"CSAFPID-244071",
"CSAFPID-244530",
"CSAFPID-245377",
"CSAFPID-250629",
"CSAFPID-251075",
"CSAFPID-251225",
"CSAFPID-252045",
"CSAFPID-252271",
"CSAFPID-252272",
"CSAFPID-252913",
"CSAFPID-254712",
"CSAFPID-257955",
"CSAFPID-257984",
"CSAFPID-260917",
"CSAFPID-261240",
"CSAFPID-261465",
"CSAFPID-262390",
"CSAFPID-262549",
"CSAFPID-262588",
"CSAFPID-262590",
"CSAFPID-262592",
"CSAFPID-264096",
"CSAFPID-265735",
"CSAFPID-265841",
"CSAFPID-267110",
"CSAFPID-267605",
"CSAFPID-271798",
"CSAFPID-273112",
"CSAFPID-273445",
"CSAFPID-273509",
"CSAFPID-274818",
"CSAFPID-275538",
"CSAFPID-277099",
"CSAFPID-277147",
"CSAFPID-277194",
"CSAFPID-277255",
"CSAFPID-277338",
"CSAFPID-277348",
"CSAFPID-277945",
"CSAFPID-278002",
"CSAFPID-278019",
"CSAFPID-278020",
"CSAFPID-278504",
"CSAFPID-279338",
"CSAFPID-280463",
"CSAFPID-280651",
"CSAFPID-280652",
"CSAFPID-280770",
"CSAFPID-280899",
"CSAFPID-280937",
"CSAFPID-280938",
"CSAFPID-280939",
"CSAFPID-282028",
"CSAFPID-282046",
"CSAFPID-284178",
"CSAFPID-284179",
"CSAFPID-290562",
"CSAFPID-290596",
"CSAFPID-93036"
]
},
"release_date": "2022-04-13T16:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Cisco has released software updates that address this vulnerability.",
"product_ids": [
"CSAFPID-218905",
"CSAFPID-225856",
"CSAFPID-225858",
"CSAFPID-227918",
"CSAFPID-227920",
"CSAFPID-232008",
"CSAFPID-236834",
"CSAFPID-244071",
"CSAFPID-244530",
"CSAFPID-245377",
"CSAFPID-250629",
"CSAFPID-251075",
"CSAFPID-251225",
"CSAFPID-252045",
"CSAFPID-252271",
"CSAFPID-252272",
"CSAFPID-252913",
"CSAFPID-254712",
"CSAFPID-257955",
"CSAFPID-257984",
"CSAFPID-260917",
"CSAFPID-261240",
"CSAFPID-261465",
"CSAFPID-262390",
"CSAFPID-262549",
"CSAFPID-262588",
"CSAFPID-262590",
"CSAFPID-262592",
"CSAFPID-264096",
"CSAFPID-265735",
"CSAFPID-265841",
"CSAFPID-267110",
"CSAFPID-267605",
"CSAFPID-271798",
"CSAFPID-273112",
"CSAFPID-273445",
"CSAFPID-273509",
"CSAFPID-274818",
"CSAFPID-275538",
"CSAFPID-277099",
"CSAFPID-277147",
"CSAFPID-277194",
"CSAFPID-277255",
"CSAFPID-277338",
"CSAFPID-277348",
"CSAFPID-277945",
"CSAFPID-278002",
"CSAFPID-278019",
"CSAFPID-278020",
"CSAFPID-278504",
"CSAFPID-279338",
"CSAFPID-280463",
"CSAFPID-280651",
"CSAFPID-280652",
"CSAFPID-280770",
"CSAFPID-280899",
"CSAFPID-280937",
"CSAFPID-280938",
"CSAFPID-280939",
"CSAFPID-282028",
"CSAFPID-282046",
"CSAFPID-284178",
"CSAFPID-284179",
"CSAFPID-290562",
"CSAFPID-290596",
"CSAFPID-93036"
],
"url": "https://software.cisco.com"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
"CSAFPID-218905",
"CSAFPID-225856",
"CSAFPID-225858",
"CSAFPID-227918",
"CSAFPID-227920",
"CSAFPID-232008",
"CSAFPID-236834",
"CSAFPID-244071",
"CSAFPID-244530",
"CSAFPID-245377",
"CSAFPID-250629",
"CSAFPID-251075",
"CSAFPID-251225",
"CSAFPID-252045",
"CSAFPID-252271",
"CSAFPID-252272",
"CSAFPID-252913",
"CSAFPID-254712",
"CSAFPID-257955",
"CSAFPID-257984",
"CSAFPID-260917",
"CSAFPID-261240",
"CSAFPID-261465",
"CSAFPID-262390",
"CSAFPID-262549",
"CSAFPID-262588",
"CSAFPID-262590",
"CSAFPID-262592",
"CSAFPID-264096",
"CSAFPID-265735",
"CSAFPID-265841",
"CSAFPID-267110",
"CSAFPID-267605",
"CSAFPID-271798",
"CSAFPID-273112",
"CSAFPID-273445",
"CSAFPID-273509",
"CSAFPID-274818",
"CSAFPID-275538",
"CSAFPID-277099",
"CSAFPID-277147",
"CSAFPID-277194",
"CSAFPID-277255",
"CSAFPID-277338",
"CSAFPID-277348",
"CSAFPID-277945",
"CSAFPID-278002",
"CSAFPID-278019",
"CSAFPID-278020",
"CSAFPID-278504",
"CSAFPID-279338",
"CSAFPID-280463",
"CSAFPID-280651",
"CSAFPID-280652",
"CSAFPID-280770",
"CSAFPID-280899",
"CSAFPID-280937",
"CSAFPID-280938",
"CSAFPID-280939",
"CSAFPID-282028",
"CSAFPID-282046",
"CSAFPID-284178",
"CSAFPID-284179",
"CSAFPID-290562",
"CSAFPID-290596",
"CSAFPID-93036"
]
}
],
"title": "Cisco IOS XE Software IPSEC Denial of Service 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.
- 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.