CVE-2021-34561— A vulnerability in WirelessHART-Gateway <= 3.0.8 allows to bypass any IP or firewall based access restrictions through DNS rebinding
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I. Basic Information for CVE-2021-34561
Vulnerability Information
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Vulnerability Title
A vulnerability in WirelessHART-Gateway <= 3.0.8 allows to bypass any IP or firewall based access restrictions through DNS rebinding
Source: NVD (National Vulnerability Database)
Vulnerability Description
In PEPPERL+FUCHS WirelessHART-Gateway <= 3.0.8 serious issue exists, if the application is not externally accessible or uses IP-based access restrictions. Attackers can use DNS Rebinding to bypass any IP or firewall based access restrictions that may be in place, by proxying through their target's browser.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不恰当地信任反向DNS
Source: NVD (National Vulnerability Database)
Vulnerability Title
Pepperl Fuchs WirelessHART-Gateway安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Pepperl Fuchs WirelessHART-Gateway是德国Pepperl Fuchs公司的一款网关设备。 Pepperl Fuchs WirelessHART-Gateway 3.0.8及之前版本存在安全漏洞，攻击者可利用该漏洞使用DNS重新绑定绕过可能存在的任何基于IP或防火墙的访问限制
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 |
|---|---|---|---|---|
| Phoenix Contact | WHA-GW-F2D2-0-AS- Z2-ETH | 3.0.8 ~ 3.0.8 | - | |
| Phoenix Contact | WHA-GW-F2D2-0-AS- Z2-ETH.EIP | 3.0.8 ~ 3.0.8 | - |
II. Public POCs for CVE-2021-34561
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|---|
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- https://cert.vde.com/en-us/advisories/vde-2021-027x_refsource_CONFIRM
- https://nvd.nist.gov/vuln/detail/CVE-2021-34561
Same Patch Batch · Phoenix Contact · 2021-08-31 · 8 CVEs total
| CVE-2021-34565 | 9.8 CRITICAL | In WirelessHART-Gateway versions 3.0.7 to 3.0.9 hard-coded credentials have been found |
| CVE-2021-33555 | 7.5 HIGH | A vulnerability may allow remote attackers to read arbitrary files on the server of the Wi |
| CVE-2021-34564 | 5.5 MEDIUM | In WirelessHART-Gateway versions 3.0.9 a vulnerability allows to read and write sensitive |
| CVE-2021-34560 | 5.5 MEDIUM | A vulnerability in WirelessHART-Gateway <= 3.0.9 could lead to information exposure of sen |
| CVE-2021-34562 | 5.4 MEDIUM | A vulnerability in WirelessHART-Gateway 3.0.8 it is possible to inject arbitrary JavaScrip |
| CVE-2021-34559 | 5.4 MEDIUM | A vulnerability in WirelessHART-Gateway <= 3.0.8 may allow remote attackers to rewrite lin |
| CVE-2021-34563 | 3.3 LOW | In WirelessHART-Gateway versions 3.0.8 and 3.0.9 the HttpOnly flag is missing in a cookie |
IV. Related Vulnerabilities
Same product: WHA-GW-F2D2-0-AS- Z2-ETH
- CVE-2021-34565
In WirelessHART-Gateway versions 3.0.7 to 3.0.9 hard-coded c - CVE-2021-34564
In WirelessHART-Gateway versions 3.0.9 a vulnerability allow - CVE-2021-34563
In WirelessHART-Gateway versions 3.0.8 and 3.0.9 the HttpOnl - CVE-2021-34562
A vulnerability in WirelessHART-Gateway 3.0.8 it is possible - CVE-2021-34560
A vulnerability in WirelessHART-Gateway <= 3.0.9 could lead
Same vendor: Phoenix Contact
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Phoenix Contact: Improper removal of sensitive information i - CVE-2026-22323
Cross‑Site Request Forgery in Link Aggregation Configuration - CVE-2026-22322
Stored Cross‑Site Scripting in Link Aggregation Name Handlin - CVE-2026-22321
Stack-Based Buffer Overflow in CLI Login Username Handling o - CVE-2026-22320
Stack-Based Buffer Overflow in TFTP File-Transfer Command Ha
Same weakness: CWE-350
- CVE-2026-6874
ericc-ch copilot-api Header token dns rebinding - CVE-2026-24281
Apache ZooKeeper: Reverse-DNS fallback enables hostname veri - CVE-2026-28271
Kiteworks Core is vulnerable to Server-Side Request Forgery - CVE-2026-1490
Spam protection, Honeypot, Anti-Spam by CleanTalk <= 6.71 - - CVE-2025-59956
AgentAPI exposed user chat history via a DNS rebinding attac
V. Comments for CVE-2021-34561
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