CVE-2021-34559 : Exploit Details and Defense Strategies
Discover the impact and mitigation steps for CVE-2021-34559 affecting WirelessHART-Gateway <= 3.0.8. Learn about the security risk and protective measures.
A vulnerability in WirelessHART-Gateway <= 3.0.8 may allow remote attackers to rewrite links and URLs in cached pages to arbitrary strings.
Understanding CVE-2021-34559
This CVE identifies a security flaw in PEPPERL+FUCHS WirelessHART-Gateway version 3.0.8 and earlier that could permit malicious actors to manipulate links and URLs within cached pages.
What is CVE-2021-34559?
The vulnerability in WirelessHART-Gateway <= 3.0.8 could be exploited by remote attackers to modify links and URLs in cached pages to arbitrary values, potentially leading to further attacks.
The Impact of CVE-2021-34559
With a CVSS base score of 5.4 (Medium severity), this vulnerability poses a threat to confidentiality and integrity, requiring immediate attention to prevent potential exploitation.
Technical Details of CVE-2021-34559
This section provides a deeper insight into the specific aspects of the CVE.
Vulnerability Description
In PEPPERL+FUCHS WirelessHART-Gateway version 3.0.8 and below, attackers can tamper with links and URLs stored in cached pages.
Affected Systems and Versions
- Product: WHA-GW-F2D2-0-AS- Z2-ETH
- Vendor: Phoenix Contact
- Affected Version: 3.0.8 (custom version)
- Product: WHA-GW-F2D2-0-AS- Z2-ETH.EIP
- Vendor: Phoenix Contact
- Affected Version: 3.0.8 (custom version)
Exploitation Mechanism
The vulnerability allows remote threat actors to manipulate links and URLs within cached pages, potentially leading to various malicious activities.
Mitigation and Prevention
Protective measures and practices to mitigate the risks associated with CVE-2021-34559.
Immediate Steps to Take
Implement external protective measures such as minimizing network exposure, isolating affected products, and using secure remote access methods like VPNs.
Long-Term Security Practices
Ensure continuous monitoring, regular security assessments, and staff training to enhance overall cybersecurity posture.
Patching and Updates
As of now, there is no available update to address this vulnerability.