cisco-sa-20190925-rawtcp-dos
Vulnerability from csaf_cisco
Published
2019-09-25 16:00
Modified
2019-09-25 16:00
Summary
Cisco IOS XE Software Raw Socket Transport Denial of Service Vulnerability
Notes
Summary
A vulnerability in the Raw Socket Transport feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition.
The vulnerability is due to improper parsing of Raw Socket Transport payloads. An attacker could exploit this vulnerability by establishing a TCP session and then sending a malicious TCP segment via IPv4 to an affected device. This cannot be exploited via IPv6, as the Raw Socket Transport feature does not support IPv6 as a network layer protocol.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
This advisory is part of the September 25, 2019, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 12 Cisco Security Advisories that describe 13 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: September 2019 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication ["https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-72547"].
Vulnerable Products
This vulnerability affects Cisco ASR 900 Series routers that are running Cisco IOS XE Software Release 16.9 and that are configured as a Raw Socket TCP Server. The Raw Socket TCP Server is not enabled in Cisco IOS XE Software by default.
For information about which Cisco IOS XE Software releases are vulnerable, see the Fixed Software ["#fs"] section of this advisory.
Determine Whether a Raw Socket TCP Server is Enabled
To determine whether a Raw Socket TCP Server has been enabled, administrators can use the show raw-socket tcp detail | include Socket|listening command and look for a socket in listening state. The following example shows the output of the show raw-socket tcp detail | include Socket|listening command on a device that has a Raw Socket TCP Server enabled on port 2009 (the listening TCP port is configurable and may vary):
ASR900#show raw-socket tcp detail | include Socket|listening
--------------------------------------------- Socket Mapping -------------------------------------------- Socket status interface tty vrf_name hwidb local_ip_addr local_port dest_ip_addr dest_port [ 0] listening 0/0/8 108 76EE31E8 10.122.161.166 2009 ------ ----
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 Cisco IOS Software, Cisco IOS XR Software, or Cisco NX-OS Software.
Indicators of Compromise
A successful exploit of this vulnerability will cause an affected device to reload and generate a crashinfo file.
A successful exploit of this vulnerability may be confirmed by decoding the stack trace for the device and determining whether the stack trace correlates with this vulnerability.
Contact the Cisco Technical Assistance Center (TAC) to review the crashinfo file and determine whether the device has been compromised by exploitation of this vulnerability.
Workarounds
There are no workarounds that address this vulnerability.
To reduce the attack surface, administrators can use infrastructure access control lists (iACLs) on the interface to which the Raw Socket TCP Server is bound to restrict access to the Raw Socket TCP Server to trusted hosts only. Please refer to the Cisco Guide to Harden Cisco IOS Devices ["https://www.cisco.com/c/en/us/support/docs/ip/access-lists/13608-21.html"] for further information on how to configure iACLs.
Fixed Software
Cisco has released free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:
https://www.cisco.com/c/en/us/products/end-user-license-agreement.html ["https://www.cisco.com/c/en/us/products/end-user-license-agreement.html"]
Additionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.
When considering software upgrades ["https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page ["https://www.cisco.com/go/psirt"], to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
Customers Without Service Contracts
Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC:
https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html ["https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"]
Customers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.
Cisco IOS and IOS XE Software
To help customers determine their exposure to vulnerabilities in Cisco IOS and IOS XE Software, Cisco provides a tool, the Cisco IOS Software Checker ["https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"], that identifies 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 this tool to perform the following tasks:
Initiate a search by choosing one or more releases from a drop-down list or uploading a file from a local system for the tool to parse
Enter the output of the show version command for the tool to parse
Create a custom search by including all previously published Cisco Security Advisories, a specific advisory, or all advisories in the most recent bundled publication
To determine whether a release is affected by any published Cisco Security Advisory, use the Cisco IOS Software Checker ["https://sec.cloudapps.cisco.com/security/center/softwarechecker.x"] on Cisco.com or enter a Cisco IOS or IOS XE Software release—for example, 15.1(4)M2 or 3.13.8S—in the following field:
By default, the Cisco IOS Software Checker includes results only for vulnerabilities that have a Critical or High Security Impact Rating (SIR). To include results for Medium SIR vulnerabilities, use the Cisco IOS Software Checker on Cisco.com and check the Medium check box in the Impact Rating drop-down list.
For a mapping of Cisco IOS XE Software releases to Cisco IOS Software releases, refer to the Cisco IOS XE 2 Release Notes ["https://www.cisco.com/c/en/us/td/docs/ios/ios_xe/2/release/notes/rnasr21/rnasr21_gen.html#wp3000032"], Cisco IOS XE 3S Release Notes ["https://www.cisco.com/c/en/us/td/docs/ios/ios_xe/3/release/notes/asr1k_rn_3s_rel_notes/asr1k_rn_3s_sys_req.html#wp3069754"], or Cisco IOS XE 3SG Release Notes ["https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/release/note/OL_24726.html#pgfId-2570252"], depending on the Cisco IOS XE Software release.
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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"text": "A vulnerability in the Raw Socket Transport feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition.\r\n\r\nThe vulnerability is due to improper parsing of Raw Socket Transport payloads. An attacker could exploit this vulnerability by establishing a TCP session and then sending a malicious TCP segment via IPv4 to an affected device. This cannot be exploited via IPv6, as the Raw Socket Transport feature does not support IPv6 as a network layer protocol.\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\n\r\n\r\nThis advisory is part of the September 25, 2019, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 12 Cisco Security Advisories that describe 13 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: September 2019 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication [\"https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-72547\"].",
"title": "Summary"
},
{
"category": "general",
"text": "This vulnerability affects Cisco ASR 900 Series routers that are running Cisco IOS XE Software Release 16.9 and that are configured as a Raw Socket TCP Server. The Raw Socket TCP Server is not enabled in Cisco IOS XE Software by default.\r\n\r\nFor information about which Cisco IOS XE Software releases are vulnerable, see the Fixed Software [\"#fs\"] section of this advisory.\r\n\r\nDetermine Whether a Raw Socket TCP Server is Enabled\r\n\r\nTo determine whether a Raw Socket TCP Server has been enabled, administrators can use the show raw-socket tcp detail | include Socket|listening command and look for a socket in listening state. The following example shows the output of the show raw-socket tcp detail | include Socket|listening command on a device that has a Raw Socket TCP Server enabled on port 2009 (the listening TCP port is configurable and may vary):\r\n\r\n\r\nASR900#show raw-socket tcp detail | include Socket|listening\r\n--------------------------------------------- Socket Mapping -------------------------------------------- Socket status interface tty vrf_name hwidb local_ip_addr local_port dest_ip_addr dest_port [ 0] listening 0/0/8 108 76EE31E8 10.122.161.166 2009 ------ ----",
"title": "Vulnerable Products"
},
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"text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.\r\n Cisco has confirmed that this vulnerability does not affect Cisco IOS Software, Cisco IOS XR Software, or Cisco NX-OS Software.",
"title": "Products Confirmed Not Vulnerable"
},
{
"category": "general",
"text": "A successful exploit of this vulnerability will cause an affected device to reload and generate a crashinfo file.\r\n\r\nA successful exploit of this vulnerability may be confirmed by decoding the stack trace for the device and determining whether the stack trace correlates with this vulnerability.\r\n\r\nContact the Cisco Technical Assistance Center (TAC) to review the crashinfo file and determine whether the device has been compromised by exploitation of this vulnerability.",
"title": "Indicators of Compromise"
},
{
"category": "general",
"text": "There are no workarounds that address this vulnerability.\r\n\r\nTo reduce the attack surface, administrators can use infrastructure access control lists (iACLs) on the interface to which the Raw Socket TCP Server is bound to restrict access to the Raw Socket TCP Server to trusted hosts only. Please refer to the Cisco Guide to Harden Cisco IOS Devices [\"https://www.cisco.com/c/en/us/support/docs/ip/access-lists/13608-21.html\"] for further information on how to configure iACLs.",
"title": "Workarounds"
},
{
"category": "general",
"text": "Cisco has released free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:\r\nhttps://www.cisco.com/c/en/us/products/end-user-license-agreement.html [\"https://www.cisco.com/c/en/us/products/end-user-license-agreement.html\"]\r\n\r\nAdditionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.\r\n\r\nWhen considering software upgrades [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html#fixes\"], customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page [\"https://www.cisco.com/go/psirt\"], to determine exposure and a complete upgrade solution.\r\n\r\nIn all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.\r\n Customers Without Service Contracts\r\nCustomers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC:\r\nhttps://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"]\r\n\r\nCustomers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.\r\n\r\n\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 a tool, the Cisco IOS Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"], that identifies 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 this tool to perform the following tasks:\r\n\r\nInitiate a search by choosing one or more releases from a drop-down list or uploading a file from a local system for the tool to parse\r\nEnter the output of the show version command for the tool to parse\r\nCreate a custom search by including all previously published Cisco Security Advisories, a specific advisory, or all advisories in the most recent bundled publication\r\n\r\nTo determine whether a release is affected by any published Cisco Security Advisory, use the Cisco IOS Software Checker [\"https://sec.cloudapps.cisco.com/security/center/softwarechecker.x\"] on Cisco.com or enter a Cisco IOS or IOS XE Software release\u2014for example, 15.1(4)M2 or 3.13.8S\u2014in the following field:\r\n\r\n\r\n\r\nBy default, the Cisco IOS Software Checker includes results only for vulnerabilities that have a Critical or High Security Impact Rating (SIR). To include results for Medium SIR vulnerabilities, use the Cisco IOS Software Checker on Cisco.com and check the Medium check box in the Impact Rating drop-down list.\r\n\r\n\r\n\r\nFor a mapping of Cisco IOS XE Software releases to Cisco IOS Software releases, refer to the Cisco IOS XE 2 Release Notes [\"https://www.cisco.com/c/en/us/td/docs/ios/ios_xe/2/release/notes/rnasr21/rnasr21_gen.html#wp3000032\"], Cisco IOS XE 3S Release Notes [\"https://www.cisco.com/c/en/us/td/docs/ios/ios_xe/3/release/notes/asr1k_rn_3s_rel_notes/asr1k_rn_3s_sys_req.html#wp3069754\"], or Cisco IOS XE 3SG Release Notes [\"https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/release/note/OL_24726.html#pgfId-2570252\"], depending on the Cisco IOS XE Software release.",
"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"
}
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},
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"url": "https://www.cisco.com/c/en/us/td/docs/ios/ios_xe/3/release/notes/asr1k_rn_3s_rel_notes/asr1k_rn_3s_sys_req.html#wp3069754"
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{
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"url": "https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst4500/release/note/OL_24726.html#pgfId-2570252"
}
],
"title": "Cisco IOS XE Software Raw Socket Transport Denial of Service Vulnerability",
"tracking": {
"current_release_date": "2019-09-25T16:00:00+00:00",
"generator": {
"date": "2024-05-10T22:48:52+00:00",
"engine": {
"name": "TVCE"
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},
"id": "cisco-sa-20190925-rawtcp-dos",
"initial_release_date": "2019-09-25T16:00:00+00:00",
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"date": "2019-09-25T15:51:27+00:00",
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"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"branches": [
{
"category": "service_pack",
"name": "16.9.1",
"product": {
"name": "16.9.1",
"product_id": "CSAFPID-225856"
}
},
{
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},
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}
},
{
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"product_id": "CSAFPID-243362"
}
},
{
"category": "service_pack",
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"product": {
"name": "16.9.1s",
"product_id": "CSAFPID-244530"
}
},
{
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"name": "16.9.1c",
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"product_id": "CSAFPID-245375"
}
},
{
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"product_id": "CSAFPID-248242"
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},
{
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},
{
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"name": "16.9.2a",
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}
},
{
"category": "service_pack",
"name": "16.9.2s",
"product": {
"name": "16.9.2s",
"product_id": "CSAFPID-252272"
}
},
{
"category": "service_pack",
"name": "16.9.3h",
"product": {
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"product_id": "CSAFPID-258229"
}
},
{
"category": "service_pack",
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"product_id": "CSAFPID-262390"
}
},
{
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"name": "16.9.3s",
"product": {
"name": "16.9.3s",
"product_id": "CSAFPID-262549"
}
},
{
"category": "service_pack",
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"product": {
"name": "16.9.3a",
"product_id": "CSAFPID-263804"
}
},
{
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"product": {
"name": "16.9.4c",
"product_id": "CSAFPID-268921"
}
},
{
"category": "service_pack",
"name": "16.9.5",
"product": {
"name": "16.9.5",
"product_id": "CSAFPID-271798"
}
},
{
"category": "service_pack",
"name": "16.9.5f",
"product": {
"name": "16.9.5f",
"product_id": "CSAFPID-276837"
}
},
{
"category": "service_pack",
"name": "16.9.6",
"product": {
"name": "16.9.6",
"product_id": "CSAFPID-277945"
}
},
{
"category": "service_pack",
"name": "16.9.7",
"product": {
"name": "16.9.7",
"product_id": "CSAFPID-280651"
}
},
{
"category": "service_pack",
"name": "16.9.8",
"product": {
"name": "16.9.8",
"product_id": "CSAFPID-280938"
}
},
{
"category": "service_pack",
"name": "16.9.8a",
"product": {
"name": "16.9.8a",
"product_id": "CSAFPID-290562"
}
},
{
"category": "service_pack",
"name": "16.9.8b",
"product": {
"name": "16.9.8b",
"product_id": "CSAFPID-290669"
}
}
],
"category": "product_version",
"name": "16.9"
}
],
"category": "product_family",
"name": "Cisco IOS XE Software"
}
],
"category": "vendor",
"name": "Cisco"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2019-12653",
"ids": [
{
"system_name": "Cisco Bug ID",
"text": "CSCvj91021"
}
],
"notes": [
{
"category": "other",
"text": "Complete.",
"title": "Affected Product Comprehensiveness"
}
],
"product_status": {
"known_affected": [
"CSAFPID-225856",
"CSAFPID-232008",
"CSAFPID-242308",
"CSAFPID-243362",
"CSAFPID-244530",
"CSAFPID-245375",
"CSAFPID-248242",
"CSAFPID-251075",
"CSAFPID-251166",
"CSAFPID-252272",
"CSAFPID-258229",
"CSAFPID-262390",
"CSAFPID-262549",
"CSAFPID-263804",
"CSAFPID-268921",
"CSAFPID-271798",
"CSAFPID-276837",
"CSAFPID-277945",
"CSAFPID-280651",
"CSAFPID-280938",
"CSAFPID-290562",
"CSAFPID-290669"
]
},
"release_date": "2019-09-25T16:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"details": "Cisco has released software updates that address this vulnerability.",
"product_ids": [
"CSAFPID-225856",
"CSAFPID-232008",
"CSAFPID-242308",
"CSAFPID-243362",
"CSAFPID-244530",
"CSAFPID-245375",
"CSAFPID-248242",
"CSAFPID-251075",
"CSAFPID-251166",
"CSAFPID-252272",
"CSAFPID-258229",
"CSAFPID-262390",
"CSAFPID-262549",
"CSAFPID-263804",
"CSAFPID-268921",
"CSAFPID-271798",
"CSAFPID-276837",
"CSAFPID-277945",
"CSAFPID-280651",
"CSAFPID-280938",
"CSAFPID-290562",
"CSAFPID-290669"
],
"url": "https://software.cisco.com"
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 8.6,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"version": "3.0"
},
"products": [
"CSAFPID-225856",
"CSAFPID-232008",
"CSAFPID-242308",
"CSAFPID-243362",
"CSAFPID-244530",
"CSAFPID-245375",
"CSAFPID-248242",
"CSAFPID-251075",
"CSAFPID-251166",
"CSAFPID-252272",
"CSAFPID-258229",
"CSAFPID-262390",
"CSAFPID-262549",
"CSAFPID-263804",
"CSAFPID-268921",
"CSAFPID-271798",
"CSAFPID-276837",
"CSAFPID-277945",
"CSAFPID-280651",
"CSAFPID-280938",
"CSAFPID-290562",
"CSAFPID-290669"
]
}
],
"title": "Cisco IOS XE Software Raw Socket Transport 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.