All the vulnerabilites related to cisco - asr_9000v-v2
cve-2021-34720
Vulnerability from cvelistv5
Published
2021-09-09 05:01
Modified
2024-11-07 22:00
Severity ?
EPSS score ?
Summary
A vulnerability in the IP Service Level Agreements (IP SLA) responder and Two-Way Active Measurement Protocol (TWAMP) features of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause device packet memory to become exhausted or cause the IP SLA process to crash, resulting in a denial of service (DoS) condition. This vulnerability exists because socket creation failures are mishandled during the IP SLA and TWAMP processes. An attacker could exploit this vulnerability by sending specific IP SLA or TWAMP packets to an affected device. A successful exploit could allow the attacker to exhaust the packet memory, which will impact other processes, such as routing protocols, or crash the IP SLA process.
References
| ▼ | URL | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ipsla-ZA3SRrpP | vendor-advisory, x_refsource_CISCO |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Cisco | Cisco IOS XR Software |
Version: n/a |
|
|
|||
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cve-2021-34721
Vulnerability from cvelistv5
Published
2021-09-09 05:01
Modified
2024-11-07 22:00
Severity ?
EPSS score ?
Summary
Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to gain access to the underlying root shell of an affected device and execute arbitrary commands with root privileges. For more information about these vulnerabilities, see the Details section of this advisory.
References
| ▼ | URL | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-cmd-inj-wbZKvPxc | vendor-advisory, x_refsource_CISCO |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Cisco | Cisco IOS XR Software |
Version: n/a |
|
|
|||
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cve-2021-34718
Vulnerability from cvelistv5
Published
2021-09-09 05:00
Modified
2024-11-07 22:01
Severity ?
EPSS score ?
Summary
A vulnerability in the SSH Server process of Cisco IOS XR Software could allow an authenticated, remote attacker to overwrite and read arbitrary files on the local device. This vulnerability is due to insufficient input validation of arguments that are supplied by the user for a specific file transfer method. An attacker with lower-level privileges could exploit this vulnerability by specifying Secure Copy Protocol (SCP) parameters when authenticating to a device. A successful exploit could allow the attacker to elevate their privileges and retrieve and upload files on a device that they should not have access to.
References
| ▼ | URL | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-scp-inject-QwZOCv2 | vendor-advisory, x_refsource_CISCO |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Cisco | Cisco IOS XR Software |
Version: n/a |
|
|
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cve-2021-34737
Vulnerability from cvelistv5
Published
2021-09-09 05:01
Modified
2024-11-07 22:00
Severity ?
EPSS score ?
Summary
A vulnerability in the DHCP version 4 (DHCPv4) server feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to trigger a crash of the dhcpd process, resulting in a denial of service (DoS) condition. This vulnerability exists because certain DHCPv4 messages are improperly validated when they are processed by an affected device. An attacker could exploit this vulnerability by sending a malformed DHCPv4 message to an affected device. A successful exploit could allow the attacker to cause a NULL pointer dereference, resulting in a crash of the dhcpd process. While the dhcpd process is restarting, which may take up to approximately two minutes, DHCPv4 server services are unavailable on the affected device. This could temporarily prevent network access to clients that join the network during that time period. Note: Only the dhcpd process crashes and eventually restarts automatically. The router does not reload.
References
| ▼ | URL | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-dhcp-dos-pjPVReLU | vendor-advisory, x_refsource_CISCO |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Cisco | Cisco IOS XR Software |
Version: n/a |
|
|
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cve-2022-20677
Vulnerability from cvelistv5
Published
2022-04-15 14:16
Modified
2024-11-06 16:25
Severity ?
EPSS score ?
Summary
Multiple vulnerabilities in the Cisco IOx application hosting environment on multiple Cisco platforms could allow an attacker to inject arbitrary commands into the underlying host operating system, execute arbitrary code on the underlying host operating system, install applications without being authenticated, or conduct a cross-site scripting (XSS) attack against a user of the affected software. For more information about these vulnerabilities, see the Details section of this advisory.
References
| ▼ | URL | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iox-yuXQ6hFj | vendor-advisory, x_refsource_CISCO |
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cve-2023-20064
Vulnerability from cvelistv5
Published
2023-03-09 00:00
Modified
2024-10-25 16:03
Severity ?
EPSS score ?
Summary
A vulnerability in the GRand Unified Bootloader (GRUB) for Cisco IOS XR Software could allow an unauthenticated attacker with physical access to the device to view sensitive files on the console using the GRUB bootloader command line. This vulnerability is due to the inclusion of unnecessary commands within the GRUB environment that allow sensitive files to be viewed. An attacker could exploit this vulnerability by being connected to the console port of the Cisco IOS XR device when the device is power-cycled. A successful exploit could allow the attacker to view sensitive files that could be used to conduct additional attacks against the device.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Cisco | Cisco IOS XR Software |
Version: n/a |
|
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cve-2023-20049
Vulnerability from cvelistv5
Published
2023-03-09 00:00
Modified
2024-10-28 16:33
Severity ?
EPSS score ?
Summary
A vulnerability in the bidirectional forwarding detection (BFD) hardware offload feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unauthenticated, remote attacker to cause a line card to reset, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of malformed BFD packets that are received on line cards where the BFD hardware offload feature is enabled. An attacker could exploit this vulnerability by sending a crafted IPv4 BFD packet to an affected device. A successful exploit could allow the attacker to cause line card exceptions or a hard reset, resulting in loss of traffic over that line card while the line card reloads.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Cisco | Cisco IOS XR Software |
Version: n/a |
|
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cve-2021-34722
Vulnerability from cvelistv5
Published
2021-09-09 05:01
Modified
2024-11-07 22:00
Severity ?
EPSS score ?
Summary
Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to gain access to the underlying root shell of an affected device and execute arbitrary commands with root privileges. For more information about these vulnerabilities, see the Details section of this advisory.
References
| ▼ | URL | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-cmd-inj-wbZKvPxc | vendor-advisory, x_refsource_CISCO |
Impacted products
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|---|---|---|---|
| ▼ | Cisco | Cisco IOS XR Software |
Version: n/a |
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cve-2021-34713
Vulnerability from cvelistv5
Published
2021-09-09 05:00
Modified
2024-11-07 22:01
Severity ?
EPSS score ?
Summary
A vulnerability in the Layer 2 punt code of Cisco IOS XR Software running on Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to cause the affected line card to reboot. This vulnerability is due to incorrect handling of specific Ethernet frames that cause a spin loop that can make the network processors unresponsive. An attacker could exploit this vulnerability by sending specific types of Ethernet frames on the segment where the affected line cards are attached. A successful exploit could allow the attacker to cause the affected line card to reboot.
References
| ▼ | URL | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-npspin-QYpwdhFD | vendor-advisory, x_refsource_CISCO |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Cisco | Cisco IOS XR Software |
Version: n/a |
|
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cve-2021-34728
Vulnerability from cvelistv5
Published
2021-09-09 05:01
Modified
2024-11-07 22:00
Severity ?
EPSS score ?
Summary
Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker with a low-privileged account to elevate privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
References
| ▼ | URL | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-privescal-dZYMrKf | vendor-advisory, x_refsource_CISCO |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Cisco | Cisco IOS XR Software |
Version: n/a |
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cve-2021-34719
Vulnerability from cvelistv5
Published
2021-09-09 05:00
Modified
2024-11-07 22:00
Severity ?
EPSS score ?
Summary
Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker with a low-privileged account to elevate privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
References
| ▼ | URL | Tags |
|---|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-privescal-dZYMrKf | vendor-advisory, x_refsource_CISCO |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Cisco | Cisco IOS XR Software |
Version: n/a |
|
|
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Vulnerability from fkie_nvd
Published
2021-09-09 05:15
Modified
2024-11-21 06:11
Severity ?
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to gain access to the underlying root shell of an affected device and execute arbitrary commands with root privileges. For more information about these vulnerabilities, see the Details section of this advisory.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | asr_9000v-v2 | - | |
| cisco | asr_9001 | - | |
| cisco | asr_9006 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9901 | - | |
| cisco | asr_9902 | - | |
| cisco | asr_9903 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9906 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ios_xrv | - | |
| cisco | ios_xrv_9000 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_520 | - | |
| cisco | ncs_540 | - | |
| cisco | ncs_540_fronthaul | - | |
| cisco | ncs_560-4 | - | |
| cisco | ncs_560-7 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_5001 | - | |
| cisco | ncs_5002 | - | |
| cisco | ncs_5011 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_5501 | - | |
| cisco | ncs_5501-se | - | |
| cisco | ncs_5502 | - | |
| cisco | ncs_5502-se | - | |
| cisco | ncs_5508 | - | |
| cisco | ncs_5516 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_6000 | - | |
| cisco | ncs_6008 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_1001 | - | |
| cisco | ncs_1002 | - | |
| cisco | ncs_1004 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | 8101-32fh | - | |
| cisco | 8101-32h | - | |
| cisco | 8102-64h | - | |
| cisco | 8201 | - | |
| cisco | 8201-32fh | - | |
| cisco | 8202 | - | |
| cisco | 8804 | - | |
| cisco | 8808 | - | |
| cisco | 8812 | - | |
| cisco | 8818 | - |
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Vulnerability from fkie_nvd
Published
2023-03-09 22:15
Modified
2024-11-21 07:40
Severity ?
4.6 (Medium) - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.6 (Medium) - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.6 (Medium) - CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
A vulnerability in the GRand Unified Bootloader (GRUB) for Cisco IOS XR Software could allow an unauthenticated attacker with physical access to the device to view sensitive files on the console using the GRUB bootloader command line. This vulnerability is due to the inclusion of unnecessary commands within the GRUB environment that allow sensitive files to be viewed. An attacker could exploit this vulnerability by being connected to the console port of the Cisco IOS XR device when the device is power-cycled. A successful exploit could allow the attacker to view sensitive files that could be used to conduct additional attacks against the device.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cisco | ios_xr | * | |
| cisco | asr_9000v-v2 | - | |
| cisco | asr_9001 | - | |
| cisco | asr_9006 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9901 | - | |
| cisco | asr_9902 | - | |
| cisco | asr_9903 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9906 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - | |
| cisco | ios_xrv_9000 | - | |
| cisco | ncs_1001 | - | |
| cisco | ncs_1002 | - | |
| cisco | ncs_1004 | - | |
| cisco | ios_xr | * | |
| cisco | nc57-18dd-se | - | |
| cisco | nc57-24dd | - | |
| cisco | nc57-36h-se | - | |
| cisco | nc57-36h6d-s | - | |
| cisco | ncs_540 | - | |
| cisco | ncs_540_fronthaul | - | |
| cisco | ncs_5501 | - | |
| cisco | ncs_5501-se | - | |
| cisco | ncs_5502 | - | |
| cisco | ncs_5502-se | - | |
| cisco | ncs_5508 | - | |
| cisco | ncs_5516 | - | |
| cisco | ncs_560-4 | - | |
| cisco | ncs_560-7 | - | |
| cisco | ncs_57b1-5dse-sys | - | |
| cisco | ncs_57b1-6d24-sys | - | |
| cisco | ncs_57c1-48q6-sys | - | |
| cisco | ncs_57c3-mod-sys | - | |
| cisco | ncs_57c3-mods-sys | - | |
| cisco | ios_xr | * | |
| cisco | ncs_5001 | - | |
| cisco | ncs_5002 | - | |
| cisco | ncs_5011 | - | |
| cisco | ios_xr | * | |
| cisco | ncs_6000 | - |
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Vulnerability from fkie_nvd
Published
2021-09-09 05:15
Modified
2024-11-21 06:11
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker with a low-privileged account to elevate privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
References
Impacted products
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"value": "Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker with a low-privileged account to elevate privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory."
},
{
"lang": "es",
"value": "M\u00faltiples vulnerabilidades en la CLI de Cisco IOS XR Software podr\u00edan permitir a un atacante local autenticado con una cuenta de bajo privilegio elevar los privilegios en un dispositivo afectado. Para conseguir m\u00e1s informaci\u00f3n sobre estas vulnerabilidades, consulte la secci\u00f3n Details de este aviso"
}
],
"id": "CVE-2021-34728",
"lastModified": "2024-11-21T06:11:03.867",
"metrics": {
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Vulnerability from fkie_nvd
Published
2021-09-09 05:15
Modified
2024-11-21 06:11
Severity ?
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker to gain access to the underlying root shell of an affected device and execute arbitrary commands with root privileges. For more information about these vulnerabilities, see the Details section of this advisory.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | asr_9000v-v2 | - | |
| cisco | asr_9001 | - | |
| cisco | asr_9006 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9901 | - | |
| cisco | asr_9902 | - | |
| cisco | asr_9903 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9906 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ios_xrv | - | |
| cisco | ios_xrv_9000 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_520 | - | |
| cisco | ncs_540 | - | |
| cisco | ncs_540_fronthaul | - | |
| cisco | ncs_560-4 | - | |
| cisco | ncs_560-7 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_5001 | - | |
| cisco | ncs_5002 | - | |
| cisco | ncs_5011 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_5501 | - | |
| cisco | ncs_5501-se | - | |
| cisco | ncs_5502 | - | |
| cisco | ncs_5502-se | - | |
| cisco | ncs_5508 | - | |
| cisco | ncs_5516 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_6000 | - | |
| cisco | ncs_6008 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_1001 | - | |
| cisco | ncs_1002 | - | |
| cisco | ncs_1004 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | 8101-32fh | - | |
| cisco | 8101-32h | - | |
| cisco | 8102-64h | - | |
| cisco | 8201 | - | |
| cisco | 8201-32fh | - | |
| cisco | 8202 | - | |
| cisco | 8804 | - | |
| cisco | 8808 | - | |
| cisco | 8812 | - | |
| cisco | 8818 | - |
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Vulnerability from fkie_nvd
Published
2021-09-09 05:15
Modified
2024-11-21 06:11
Severity ?
8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Summary
A vulnerability in the IP Service Level Agreements (IP SLA) responder and Two-Way Active Measurement Protocol (TWAMP) features of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause device packet memory to become exhausted or cause the IP SLA process to crash, resulting in a denial of service (DoS) condition. This vulnerability exists because socket creation failures are mishandled during the IP SLA and TWAMP processes. An attacker could exploit this vulnerability by sending specific IP SLA or TWAMP packets to an affected device. A successful exploit could allow the attacker to exhaust the packet memory, which will impact other processes, such as routing protocols, or crash the IP SLA process.
References
Impacted products
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},
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}
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Vulnerability from fkie_nvd
Published
2023-03-09 22:15
Modified
2024-11-21 07:40
Severity ?
8.6 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
A vulnerability in the bidirectional forwarding detection (BFD) hardware offload feature of Cisco IOS XR Software for Cisco ASR 9000 Series Aggregation Services Routers, ASR 9902 Compact High-Performance Routers, and ASR 9903 Compact High-Performance Routers could allow an unauthenticated, remote attacker to cause a line card to reset, resulting in a denial of service (DoS) condition. This vulnerability is due to the incorrect handling of malformed BFD packets that are received on line cards where the BFD hardware offload feature is enabled. An attacker could exploit this vulnerability by sending a crafted IPv4 BFD packet to an affected device. A successful exploit could allow the attacker to cause line card exceptions or a hard reset, resulting in loss of traffic over that line card while the line card reloads.
References
Impacted products
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Vulnerability from fkie_nvd
Published
2022-04-15 15:15
Modified
2024-11-21 06:43
Severity ?
5.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:N
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
6.7 (Medium) - CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
Multiple vulnerabilities in the Cisco IOx application hosting environment on multiple Cisco platforms could allow an attacker to inject arbitrary commands into the underlying host operating system, execute arbitrary code on the underlying host operating system, install applications without being authenticated, or conduct a cross-site scripting (XSS) attack against a user of the affected software. For more information about these vulnerabilities, see the Details section of this advisory.
References
Impacted products
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Vulnerability from fkie_nvd
Published
2021-09-09 05:15
Modified
2024-11-21 06:11
Severity ?
7.4 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
7.4 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
7.4 (High) - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Summary
A vulnerability in the Layer 2 punt code of Cisco IOS XR Software running on Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, adjacent attacker to cause the affected line card to reboot. This vulnerability is due to incorrect handling of specific Ethernet frames that cause a spin loop that can make the network processors unresponsive. An attacker could exploit this vulnerability by sending specific types of Ethernet frames on the segment where the affected line cards are attached. A successful exploit could allow the attacker to cause the affected line card to reboot.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | asr_9000 | - | |
| cisco | asr_9000v-v2 | - | |
| cisco | asr_9001 | - | |
| cisco | asr_9006 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9901 | - | |
| cisco | asr_9902 | - | |
| cisco | asr_9903 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9906 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - |
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Vulnerability from fkie_nvd
Published
2021-09-09 05:15
Modified
2024-11-21 06:11
Severity ?
5.8 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
A vulnerability in the DHCP version 4 (DHCPv4) server feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to trigger a crash of the dhcpd process, resulting in a denial of service (DoS) condition. This vulnerability exists because certain DHCPv4 messages are improperly validated when they are processed by an affected device. An attacker could exploit this vulnerability by sending a malformed DHCPv4 message to an affected device. A successful exploit could allow the attacker to cause a NULL pointer dereference, resulting in a crash of the dhcpd process. While the dhcpd process is restarting, which may take up to approximately two minutes, DHCPv4 server services are unavailable on the affected device. This could temporarily prevent network access to clients that join the network during that time period. Note: Only the dhcpd process crashes and eventually restarts automatically. The router does not reload.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | asr_9000v-v2 | - | |
| cisco | asr_9001 | - | |
| cisco | asr_9006 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9901 | - | |
| cisco | asr_9902 | - | |
| cisco | asr_9903 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9906 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ios_xrv_9000 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs540-12z20g-sys-a | - | |
| cisco | ncs540-12z20g-sys-d | - | |
| cisco | ncs540-24z8q2c-m | - | |
| cisco | ncs540-24z8q2c-sys | - | |
| cisco | ncs540-28z4c-sys-a | - | |
| cisco | ncs540-28z4c-sys-d | - | |
| cisco | ncs540-acc-sys | - | |
| cisco | ncs540x-12z16g-sys-a | - | |
| cisco | ncs540x-12z16g-sys-d | - | |
| cisco | ncs540x-16z4g8q2c-a | - | |
| cisco | ncs540x-16z4g8q2c-d | - | |
| cisco | ncs540x-acc-sys | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_5001 | - | |
| cisco | ncs_5002 | - | |
| cisco | ncs_5011 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_560-4 | - | |
| cisco | ncs_560-7 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_5501 | - | |
| cisco | ncs_5501-se | - | |
| cisco | ncs_5502 | - | |
| cisco | ncs_5502-se | - | |
| cisco | ncs_5508 | - | |
| cisco | ncs_5516 | - |
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"value": "Una vulnerabilidad en la funci\u00f3n de servidor DHCP versi\u00f3n 4 (DHCPv4) de Cisco IOS XR Software podr\u00eda permitir a un atacante remoto no autenticado desencadenar un bloqueo del proceso dhcpd, resultando en una condici\u00f3n de denegaci\u00f3n de servicio (DoS). Esta vulnerabilidad se presenta porque determinados mensajes DHCPv4 se comprueban inapropiadamente cuando son procesados por un dispositivo afectado. Un atacante podr\u00eda explotar esta vulnerabilidad enviando un mensaje DHCPv4 malformado a un dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar una desreferencia del puntero NULL, resultando en un bloqueo del proceso dhcpd. Mientras el proceso dhcpd se reinicia, lo que puede tardar hasta aproximadamente dos minutos, los servicios del servidor DHCPv4 no est\u00e1n disponibles en el dispositivo afectado. Esto podr\u00eda impedir temporalmente el acceso a la red a los clientes que se unan a ella durante ese periodo de tiempo. Nota: S\u00f3lo el proceso dhcpd se bloquea y finalmente se reinicia autom\u00e1ticamente. El router no se recarga"
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"id": "CVE-2021-34737",
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"type": "Primary"
}
]
}
Vulnerability from fkie_nvd
Published
2021-09-09 05:15
Modified
2024-11-21 06:11
Severity ?
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
8.1 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Summary
A vulnerability in the SSH Server process of Cisco IOS XR Software could allow an authenticated, remote attacker to overwrite and read arbitrary files on the local device. This vulnerability is due to insufficient input validation of arguments that are supplied by the user for a specific file transfer method. An attacker with lower-level privileges could exploit this vulnerability by specifying Secure Copy Protocol (SCP) parameters when authenticating to a device. A successful exploit could allow the attacker to elevate their privileges and retrieve and upload files on a device that they should not have access to.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | asr_9000v-v2 | - | |
| cisco | asr_9001 | - | |
| cisco | asr_9006 | - | |
| cisco | asr_9010 | - | |
| cisco | asr_9901 | - | |
| cisco | asr_9902 | - | |
| cisco | asr_9903 | - | |
| cisco | asr_9904 | - | |
| cisco | asr_9906 | - | |
| cisco | asr_9910 | - | |
| cisco | asr_9912 | - | |
| cisco | asr_9922 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ios_xrv | - | |
| cisco | ios_xrv_9000 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_520 | - | |
| cisco | ncs_540 | - | |
| cisco | ncs_540_fronthaul | - | |
| cisco | ncs_560-4 | - | |
| cisco | ncs_560-7 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_5001 | - | |
| cisco | ncs_5002 | - | |
| cisco | ncs_5011 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_4009 | - | |
| cisco | ncs_4016 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_5501 | - | |
| cisco | ncs_5501-se | - | |
| cisco | ncs_5502 | - | |
| cisco | ncs_5502-se | - | |
| cisco | ncs_5508 | - | |
| cisco | ncs_5516 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_6000 | - | |
| cisco | ncs_6008 | - | |
| cisco | ios_xr | * | |
| cisco | ios_xr | * | |
| cisco | ncs_1001 | - | |
| cisco | ncs_1002 | - | |
| cisco | ncs_1004 | - |
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}
Vulnerability from fkie_nvd
Published
2021-09-09 05:15
Modified
2024-11-21 06:11
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker with a low-privileged account to elevate privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
References
Impacted products
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"value": "Multiple vulnerabilities in the CLI of Cisco IOS XR Software could allow an authenticated, local attacker with a low-privileged account to elevate privileges on an affected device. For more information about these vulnerabilities, see the Details section of this advisory."
},
{
"lang": "es",
"value": "M\u00faltiples vulnerabilidades en la CLI de Cisco IOS XR Software podr\u00edan permitir a un atacante local autenticado con una cuenta de bajo privilegio elevar los privilegios en un dispositivo afectado. Para conseguir m\u00e1s informaci\u00f3n sobre estas vulnerabilidades, consulte la secci\u00f3n Details de este aviso"
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"id": "CVE-2021-34719",
"lastModified": "2024-11-21T06:11:02.477",
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