CVE-2017-3857 (CNNVD-201703-990)
中文标题:
Cisco IOS和IOS XE Software 安全漏洞
英文标题:
A vulnerability in the Layer 2 Tunneling Protocol (L2TP) parsing function of Cisco IOS (12.0 through...
漏洞描述
中文描述:
Cisco IOS和IOS XE Software都是美国思科(Cisco)公司为其网络设备开发的操作系统。 Cisco IOS 12.0至12.4版本和15.0至15.6版本和Cisco IOS XE 3.1至3.18版本中的Layer 2 Tunneling Protocol(L2TP)解析功能存在安全漏洞,该漏洞源于程序没有充分过滤L2TP数据包。远程攻击者可通过发送大量的数据包利用该漏洞造成拒绝服务(设备重载)。
英文描述:
A vulnerability in the Layer 2 Tunneling Protocol (L2TP) parsing function of Cisco IOS (12.0 through 12.4 and 15.0 through 15.6) and Cisco IOS XE (3.1 through 3.18) could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to insufficient validation of L2TP packets. An attacker could exploit this vulnerability by sending a crafted L2TP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS or Cisco IOS XE Software if the L2TP feature is enabled for the device and the device is configured as an L2TP Version 2 (L2TPv2) or L2TP Version 3 (L2TPv3) endpoint. By default, the L2TP feature is not enabled. Cisco Bug IDs: CSCuy82078.
CWE类型:
标签:
受影响产品
| 厂商 | 产品 | 版本 | 版本范围 | 平台 | CPE |
|---|---|---|---|---|---|
| cisco | ios | * | - | - |
cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*
|
| cisco | ios_xe | * | - | - |
cpe:2.3:o:cisco:ios_xe:*:*:*:*:*:*:*:*
|
解决方案
中文解决方案:
英文解决方案:
临时解决方案:
CVSS评分详情
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
时间信息
利用信息
数据源详情
| 数据源 | 记录ID | 版本 | 提取时间 |
|---|---|---|---|
| CVE | cve_CVE-2017-3857 |
2025-11-11 15:19:27 | 2025-11-11 07:34:47 |
| NVD | nvd_CVE-2017-3857 |
2025-11-11 14:55:27 | 2025-11-11 07:43:24 |
| CNNVD | cnnvd_CNNVD-201703-990 |
2025-11-11 15:09:47 | 2025-11-11 07:52:57 |
版本与语言
安全公告
变更历史
查看详细变更
- vulnerability_type: 未提取 -> 资源管理错误
- cnnvd_id: 未提取 -> CNNVD-201703-990
- data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
查看详细变更
- severity: SeverityLevel.MEDIUM -> SeverityLevel.HIGH
- cvss_score: 未提取 -> 7.5
- cvss_vector: NOT_EXTRACTED -> CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- cvss_version: NOT_EXTRACTED -> 3.1
- affected_products_count: 0 -> 2
- data_sources: ['cve'] -> ['cve', 'nvd']