Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2021-1288— Cisco IOS XR Software Enf Broker Denial of Service Vulnerability

Quick assessment

Affected
Cisco Cisco IOS XR Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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 中的Enf代理存在资源管理错误漏洞。该漏洞是由于受影响的设备处理Telnet协议数据包时发生的逻辑错误。攻击者可以通过将特定的数据包流发送到受影响的设备来利用此漏洞。成功的利用可能使攻击者导致enf_broker进程崩溃，这可能导致系统不稳定以及无法通过受影响的设备处理或转发流量。

CVSS 8.6 · High EPSS 1.95% · P80

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-1288

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Cisco IOS XR Software Enf Broker Denial of Service Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple vulnerabilities in the ingress packet processing function of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
资源管理错误
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco IOS XR 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
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 中的Enf代理存在资源管理错误漏洞。该漏洞是由于受影响的设备处理Telnet协议数据包时发生的逻辑错误。攻击者可以通过将特定的数据包流发送到受影响的设备来利用此漏洞。成功的利用可能使攻击者导致enf_broker进程崩溃，这可能导致系统不稳定以及无法通过受影响的设备处理或转发流量。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco IOS XR Software n/a -

II. Public POCs for CVE-2021-1288

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-1288

请登录查看更多情报信息。

Vendor Advisories for CVE-2021-1288 (1)

Same Patch Batch · Cisco · 2021-02-04 · 56 CVEs total

CVE-2021-1289 9.8 CRITICAL Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Exec
CVE-2021-1290 9.8 CRITICAL Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Exec
CVE-2021-1291 9.8 CRITICAL Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Exec
CVE-2021-1292 9.8 CRITICAL Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Exec
CVE-2021-1293 9.8 CRITICAL Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Exec
CVE-2021-1294 9.8 CRITICAL Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Exec
CVE-2021-1295 9.8 CRITICAL Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Remote Code Exec
CVE-2021-1313 8.6 HIGH Cisco IOS XR Software Enf Broker Denial of Service Vulnerability
CVE-2021-1296 7.5 HIGH Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Arbitrary File W
CVE-2021-1297 7.5 HIGH Cisco Small Business RV160, RV160W, RV260, RV260P, and RV260W VPN Routers Arbitrary File W
CVE-2021-1268 7.4 HIGH Cisco IOS XR Software IPv6 Flood Denial of Service Vulnerability
CVE-2021-1327 7.2 HIGH Cisco Small Business RV Series Routers Management Interface Remote Command Execution and D
CVE-2021-1323 7.2 HIGH Cisco Small Business RV Series Routers Management Interface Remote Command Execution and D
CVE-2021-1324 7.2 HIGH Cisco Small Business RV Series Routers Management Interface Remote Command Execution and D
CVE-2021-1325 7.2 HIGH Cisco Small Business RV Series Routers Management Interface Remote Command Execution and D
CVE-2021-1326 7.2 HIGH Cisco Small Business RV Series Routers Management Interface Remote Command Execution and D
CVE-2021-1329 7.2 HIGH Cisco Small Business RV Series Routers Management Interface Remote Command Execution and D
CVE-2021-1330 7.2 HIGH Cisco Small Business RV Series Routers Management Interface Remote Command Execution and D
CVE-2021-1322 7.2 HIGH Cisco Small Business RV Series Routers Management Interface Remote Command Execution and D
CVE-2021-1328 7.2 HIGH Cisco Small Business RV Series Routers Management Interface Remote Command Execution and D

Showing top 20 of 56 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco IOS XR Software
Same vendor: Cisco
Same weakness: CWE-399

V. Comments for CVE-2021-1288

No comments yet

Leave a comment