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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2021-27791

Quick assessment

Affected
n/a Brocade Fabric OS
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.

Brocade Fabric OS（FOS）是美国博科（Brocade）公司的一套使用在交换机和路由器等设备中的嵌入式操作系统。 Brocade Fabric OS 存在缓冲区错误漏洞，攻击者可利用该漏洞可以通过Brocade Fabric OS的Authentication Header强制读取无效地址，以触发拒绝服务，或获取敏感信息。

AI Predicted 9.8 Difficulty: Easy EPSS 0.60% · P47
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-27791

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The function that is used to parse the Authentication header in Brocade Fabric OS Web application service before Brocade Fabric OS v9.0.1a and v8.2.3a fails to properly process a malformed authentication header from the client, resulting in reading memory addresses outside the intended range. An unauthenticated attacker could discover a request, which could bypass the authentication process.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Brocade Fabric OS 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Brocade Fabric OS（FOS）是美国博科（Brocade）公司的一套使用在交换机和路由器等设备中的嵌入式操作系统。 Brocade Fabric OS 存在缓冲区错误漏洞，攻击者可利用该漏洞可以通过Brocade Fabric OS的Authentication Header强制读取无效地址，以触发拒绝服务，或获取敏感信息。
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
- Brocade Fabric OS Brocade Fabric OS before Brocade Fabric OS v9.0.1a and v8.2.3a -

II. Public POCs for CVE-2021-27791

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-27791

请登录查看更多情报信息。

Vendor Advisories for CVE-2021-27791 (1)

Other References for CVE-2021-27791 (1)

Same Patch Batch · n/a · 2021-08-12 · 58 CVEs total

CVE-2020-20975 Gxlcms SQL注入漏洞
CVE-2020-28165 Nature Easy Soft Network Technology ZenTao 代码问题漏洞
CVE-2021-38592 Wasm3 缓冲区错误漏洞
CVE-2021-37222 RCDCAP 安全漏洞
CVE-2020-24576 Netskope Client 安全漏洞
CVE-2020-22403 express-cart 跨站请求伪造漏洞
CVE-2021-38597 wolfSSL 数据伪造问题漏洞
CVE-2021-27790 Brocade Fabric OS 缓冲区错误漏洞
CVE-2021-35955 Contao 跨站脚本漏洞
CVE-2021-20314 libspf2 缓冲区错误漏洞
CVE-2021-27794 Brocade Fabric OS 授权问题漏洞
CVE-2020-20977 UK CMS 跨站脚本漏洞
CVE-2020-20979 LJCMS 代码问题漏洞
CVE-2020-20981 Metinfo MetInfo SQL注入漏洞
CVE-2021-38599 WAL-G 代码问题漏洞
CVE-2021-38604 GNU C Library 代码问题漏洞
CVE-2021-38606 reNgine 安全特征问题漏洞
CVE-2020-18445 YUNUCMS 跨站脚本漏洞
CVE-2020-18446 YUNUCMS 跨站脚本漏洞
CVE-2020-18449 UKCMS 跨站脚本漏洞

Showing top 20 of 58 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Brocade Fabric OS
Same vendor: n/a

V. Comments for CVE-2021-27791

No comments yet

Leave a comment