CVE-2020-3284— Cisco IOS XR 访问控制错误漏洞
新しい脆弱性情報の通知を購読するログインして購読
I. CVE-2020-3284の基本情報
脆弱性情報
脆弱性についてご質問がありますか？Shenlongの分析が参考になるかご確認ください！
Shenlongの10の質問を表示 ↗ 高度な大規模言語モデル技術を使用していますが、出力には不正確または古い情報が含まれる可能性があります。Shenlongはデータの正確性を確保するよう努めていますが、実際の状況に基づいて検証・判断してください。
脆弱性タイトル
Cisco IOS XR Software Enhanced Preboot eXecution Environment Unsigned Code Execution Vulnerability
ソース: CVE Program / CVE List V5
脆弱性説明
A vulnerability in the enhanced Preboot eXecution Environment (PXE) boot loader for Cisco IOS XR 64-bit Software could allow an unauthenticated, remote attacker to execute unsigned code during the PXE boot process on an affected device. The PXE boot loader is part of the BIOS and runs over the management interface of hardware platforms that are running Cisco IOS XR Software only. The vulnerability exists because internal commands that are issued when the PXE network boot process is loading a software image are not properly verified. An attacker could exploit this vulnerability by compromising the PXE boot server and replacing a valid software image with a malicious one. Alternatively, the attacker could impersonate the PXE boot server and send a PXE boot reply with a malicious file. A successful exploit could allow the attacker to execute unsigned code on the affected device. Note: To fix this vulnerability, both the Cisco IOS XR Software and the BIOS must be upgraded. The BIOS code is included in Cisco IOS XR Software but might require additional installation steps. For further information, see the Fixed Software section of this advisory.
ソース: CVE Program / CVE List V5
CVSS情報
N/A
ソース: CVE Program / CVE List V5
脆弱性タイプ
访问控制不恰当
ソース: CVE Program / CVE List V5
脆弱性タイトル
Cisco IOS XR 访问控制错误漏洞
ソース: CNNVD (China National Vulnerability Database)
脆弱性説明
Cisco IOS XR是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。 Cisco IOS XR 64-bit Preboot eXecution Environment 存在访问控制错误漏洞，该漏洞使攻击者可以通过Cisco IOS XR 64位的Preboot eXecution Environment绕过限制，以提升其特权
ソース: CNNVD (China National Vulnerability Database)
CVSS情報
N/A
ソース: CNNVD (China National Vulnerability Database)
脆弱性タイプ
N/A
ソース: CNNVD (China National Vulnerability Database)
影響を受ける製品
| ベンダー | プロダクト | 影響を受けるバージョン | CPE | 購読 |
|---|---|---|---|---|
| Cisco | Cisco IOS XR Software | n/a | - |
II. CVE-2020-3284の公開POC
| # | POC説明 | ソースリンク | Shenlongリンク |
|---|
AI生成POCプレミアム
公開POCは見つかりませんでした。
ログインしてAI POCを生成III. CVE-2020-3284のインテリジェンス情報
请登录查看更多情报信息。
CVE-2020-3284 厂商安全公告 (1)
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-pxe-unsign-code-exec-qAa78fD2vendor-advisoryx_refsource_CISCO
Same Patch Batch · Cisco · 2020-11-06 · 27 CVEs total
| CVE-2020-3603 | 7.8 HIGH | Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulne |
| CVE-2020-3573 | 7.8 HIGH | Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulne |
| CVE-2020-3593 | 7.8 HIGH | Cisco SD-WAN Software Privilege Escalation Vulnerability |
| CVE-2020-3594 | 7.8 HIGH | Cisco SD-WAN Software Privilege Escalation Vulnerability |
| CVE-2020-3600 | 7.8 HIGH | Cisco SD-WAN Software Privilege Escalation Vulnerability |
| CVE-2020-3604 | 7.8 HIGH | Cisco Webex Network Recording Player and Cisco Webex Player Arbitrary Code Execution Vulne |
| CVE-2020-3595 | 7.8 HIGH | Cisco SD-WAN Software Privilege Escalation Vulnerability |
| CVE-2020-3574 | 7.5 HIGH | Cisco IP Phone TCP Packet Flood Denial of Service Vulnerability |
| CVE-2020-3588 | 7.3 HIGH | Cisco Webex Meetings Desktop App Arbitrary Code Execution Vulnerability |
| CVE-2020-3556 | 7.3 HIGH | Cisco AnyConnect Secure Mobility Client Arbitrary Code Execution Vulnerability |
| CVE-2020-27129 | 6.7 MEDIUM | Cisco SD-WAN vManage Software Command Injection Vulnerability |
| CVE-2020-3592 | 6.5 MEDIUM | Cisco SD-WAN vManage Software Authorization Bypass Vulnerability |
| CVE-2020-26084 | 6.5 MEDIUM | Cisco Edge Fog Fabric Resource Exposure Vulnerability |
| CVE-2020-27128 | 6.5 MEDIUM | Cisco SD-WAN vManage Software Arbitrary File Creation Vulnerability |
| CVE-2020-3590 | 6.4 MEDIUM | Cisco SD-WAN vManage Software Cross-Site Scripting Vulnerability |
| CVE-2020-3587 | 6.4 MEDIUM | Cisco SD-WAN vManage Software Cross-Site Scripting Vulnerability |
| CVE-2020-3371 | 6.3 MEDIUM | Cisco Integrated Management Controller Command Injection Vulnerability |
| CVE-2020-3551 | 6.1 MEDIUM | Cisco Identity Services Engine Cross-Site Scripting Vulnerability |
| CVE-2020-27123 | 5.5 MEDIUM | Cisco AnyConnect Secure Mobility Client for Windows Arbitrary File Read Vulnerability |
| CVE-2020-26083 | 4.8 MEDIUM | Cisco Identity Services Engine Cross-Site Scripting Vulnerability |
Showing 20 of 27 CVEs. View all on vendor page →
IV. 関連脆弱性
同じ製品: Cisco IOS XR Software
- CVE-2026-20118
Cisco IOS-XR NCS 5500 and NCS 5700 Egress Packet Network Int - CVE-2026-20046
Cisco IOS XR Software CLI Privilege Escalation Vulnerability - CVE-2026-20074
Cisco IOS XR Software Multi-Instance Intermediate System-to- - CVE-2026-20040
Cisco IOS XR Software CLI Privilege Escalation Vulnerability - CVE-2025-20340
Cisco IOS XR Address Resolution Protocol Broadcast Storm Vul
同じベンダー: Cisco
- CVE-2026-20313
Cisco Catalyst SD-WAN Security Hardening Release - Memory Co - CVE-2026-20311
Cisco IOS XE Software Web UI Denial of Service Vulnerability - CVE-2026-20289
Cisco RoomOS Logging Subsystem Information Disclosure Vulner - CVE-2026-20312
Cisco Catalyst SD-WAN Security Hardening Release - Informati - CVE-2026-20310
Cisco SD-WAN Software Security Hardening Release - Improper
同じ弱点: CWE-284
- CVE-2026-18993
NousResearch hermes-agent Memory Toolset model_tools.py acce - CVE-2026-10547
Langflow OSS is affected by arbitrary code execution in cust - CVE-2026-70612
Electron: Sandboxed iframes can launch external protocol han - CVE-2026-20304
Cisco Catalyst SD-WAN Security Hardening Release - Access Co - CVE-2026-20267
Cisco IOS XE Software Security Hardening Release
V. CVE-2020-3284へのコメント
まだコメントはありません