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CVE-2021-1223— Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability

Quick assessment

Affected
Cisco Cisco Firepower Threat Defense 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 Firepower Threat Defense（FTD）等都是美国思科（Cisco）公司的产品。Cisco Firepower Threat Defense是一套提供下一代防火墙服务的统一软件。Cisco 3000 Series Industrial Security Appliances是3000系列工业防火墙。Cisco Cloud Services Router 1000V Series是一款1000v系列云服务路由软件。 多款Cisco产品存在安全漏洞，该漏洞源于程序允许未经身份验证

AI Predicted 7.5 Difficulty: Easy EPSS 2.03% · P80

Possible ATT&CK Techniques 1 AI

T1071 · Application Layer Protocol
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I. Basic Information for CVE-2021-1223

Vulnerability Information
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Vulnerability Title
Multiple Cisco Products Snort HTTP Detection Engine File Policy Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured file policy for HTTP. The vulnerability is due to incorrect handling of an HTTP range header. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass configured file policy for HTTP packets and deliver a malicious payload.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
保护机制失效
Source: CVE Program / CVE List V5
Vulnerability Title
多款Cisco产品安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Firepower Threat Defense（FTD）等都是美国思科（Cisco）公司的产品。Cisco Firepower Threat Defense是一套提供下一代防火墙服务的统一软件。Cisco 3000 Series Industrial Security Appliances是3000系列工业防火墙。Cisco Cloud Services Router 1000V Series是一款1000v系列云服务路由软件。 多款Cisco产品存在安全漏洞，该漏洞源于程序允许未经身份验证
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 Firepower Threat Defense Software n/a -

II. Public POCs for CVE-2021-1223

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III. Intelligence Information for CVE-2021-1223

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Vendor Advisories for CVE-2021-1223 (1)

Mailing List Discussions for CVE-2021-1223 (1)

Same Patch Batch · Cisco · 2021-01-13 · 96 CVEs total

CVE-2021-1144 8.8 HIGH Cisco Connected Mobile Experiences Privilege Escalation Vulnerability
CVE-2021-1237 7.8 HIGH Cisco AnyConnect Secure Mobility Client for Windows DLL Injection Vulnerability
CVE-2021-1188 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1186 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1187 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1360 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1193 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1194 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1195 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1196 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1192 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1185 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1184 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1183 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1182 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1181 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1180 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1179 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1178 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote
CVE-2021-1177 7.2 HIGH Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote

Showing top 20 of 96 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco Firepower Threat Defense Software
Same vendor: Cisco
Same weakness: CWE-693

V. Comments for CVE-2021-1223

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