CVE-2021-23853— Improper Input Validation of HTTP Headers
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I. Basic Information for CVE-2021-23853
Vulnerability Information
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Vulnerability Title
Improper Input Validation of HTTP Headers
Source: NVD (National Vulnerability Database)
Vulnerability Description
In Bosch IP cameras, improper validation of the HTTP header allows an attacker to inject arbitrary HTTP headers through crafted URLs.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
Vulnerability Title
Bosch IP cameras 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Bosch IP cameras是德国（Bosch）的网络相机 Bosch IP cameras存在安全漏洞，该漏洞源于对 HTTP 请求头的不正确验证。攻击者可以通过精心设计的 URL 注入任意 HTTP 请求头。
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 |
|---|---|---|---|---|
| Bosch | CPP Firmware | all | - |
II. Public POCs for CVE-2021-23853
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://psirt.bosch.com/security-advisories/bosch-sa-478243-bt.htmlx_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-23853
Same Patch Batch · Bosch · 2021-06-09 · 5 CVEs total
| CVE-2021-23847 | 9.8 CRITICAL | Unauthenticated Information Extraction Vulnerability |
| CVE-2021-23848 | 8.3 HIGH | Reflected XSS in URL handler |
| CVE-2021-23854 | 8.3 HIGH | Reflected XSS in page parameter |
| CVE-2021-23852 | 4.9 MEDIUM | Denial of Service (DoS) due to invalid web parameter |
IV. Related Vulnerabilities
Same product: CPP Firmware
- CVE-2021-23851
Buffer Overflow vulnerability in the recovery image web-base - CVE-2021-23850
Buffer Overflow vulnerability in the recovery image telnet s - CVE-2021-23849
Cross Site Request Forgery (CSRF) vulnerability in web based - CVE-2021-23854
Reflected XSS in page parameter - CVE-2021-23847
Unauthenticated Information Extraction Vulnerability
Same vendor: Bosch
- CVE-2024-33618
Bosch VMS Central Server 安全漏洞 - CVE-2025-32063
Enabling SSH server on Infotainment ECU - CVE-2025-32062
Stack Buffer Overflow leading to RCE in Bluetooth stack of I - CVE-2025-32061
Stack Buffer Overflow leading to RCE in Bluetooth stack of I - CVE-2025-32060
Absence of Kernel Module Signature Verification on Linux Sys
Same weakness: CWE-20
V. Comments for CVE-2021-23853
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