CVE-2021-27132 : Vulnerability Insights and Analysis

SerComm AG Combo VD625 AGSOT_2.1.0 devices are vulnerable to CRLF injection (HTTP header injection) in the download function through the Content-Disposition header.

Understanding CVE-2021-27132

This CVE identifies a security flaw in SerComm AG Combo VD625 AGSOT_2.1.0 devices that allows attackers to perform CRLF injection in the download function, potentially leading to various security risks.

What is CVE-2021-27132?

CVE-2021-27132 highlights the vulnerability in SerComm AG Combo VD625 AGSOT_2.1.0 devices that enables malicious actors to inject HTTP headers using CRLF techniques during file downloads via the Content-Disposition header.

The Impact of CVE-2021-27132

Exploitation of this vulnerability can lead to unauthorized access, data manipulation, and potential security breaches on affected devices. Attackers could inject malicious headers to trigger unexpected behaviors or perform further attacks.

Technical Details of CVE-2021-27132

The technical specifics of CVE-2021-27132 include details on the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows threat actors to inject CRLF sequences in HTTP headers during file downloads, potentially manipulating server responses or initiating further attacks.

Affected Systems and Versions

SerComm AG Combo VD625 AGSOT_2.1.0 devices are confirmed to be impacted by this vulnerability, potentially exposing devices running this specific software version to exploitation.

Exploitation Mechanism

Attackers can abuse the CRLF injection flaw via the Content-Disposition header during file downloads, injecting malicious headers to manipulate server responses.

Mitigation and Prevention

To address CVE-2021-27132, immediate steps, long-term security practices, and the importance of patching and updates are crucial.

Immediate Steps to Take

System administrators should restrict access to potentially vulnerable devices, monitor network traffic for suspicious activity, and consider implementing temporary mitigations until a patch is available.

Long-Term Security Practices

Establishing robust network security policies, conducting regular security audits, and ensuring timely software updates are essential for mitigating similar vulnerabilities in the future.

Patching and Updates

Users of SerComm AG Combo VD625 AGSOT_2.1.0 devices should apply patches provided by the vendor promptly to eliminate the CRLF injection vulnerability and enhance the overall security posture of the devices.