CVE-2021-37845 : What You Need to Know
Learn about CVE-2021-37845, a vulnerability in Citadel through webcit-932 that allows attackers to manipulate sessions before a STARTTLS command, potentially leading to unauthorized access to email messages.
An issue was discovered in Citadel through webcit-932 where a meddler-in-the-middle attacker can fixate their own session during the cleartext phase before a STARTTLS command. This could potentially lead to an attacker causing a victim's e-mail messages to be stored into the attacker's IMAP mailbox.
Understanding CVE-2021-37845
This CVE highlights a vulnerability in Citadel through webcit-932, allowing a meddler-in-the-middle attacker to manipulate sessions.
What is CVE-2021-37845?
CVE-2021-37845 is a security issue in Citadel through webcit-932 that enables attackers to fixate their sessions, potentially leading to unauthorized access to victim's email messages.
The Impact of CVE-2021-37845
The impact of this CVE could result in unauthorized access to sensitive email messages, compromising the confidentiality and integrity of communications.
Technical Details of CVE-2021-37845
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows a meddler-in-the-middle attacker to manipulate their session, potentially leading to unauthorized access to victim's email messages.
Affected Systems and Versions
Vendor and product details are not available as of now, however, the vulnerability affects Citadel through webcit-932.
Exploitation Mechanism
Attackers can exploit this vulnerability during the cleartext phase before a STARTTLS command, violating RFC2595 and potentially storing victim's email messages in their own IMAP mailbox.
Mitigation and Prevention
Protecting systems from CVE-2021-37845 requires immediate action and long-term security measures.
Immediate Steps to Take
Immediately update Citadel through webcit-932 to the latest version and ensure secure email protocols are enforced.
Long-Term Security Practices
Regularly monitor and audit email communications for any suspicious activities and enforce strong access controls.
Patching and Updates
Stay informed about security updates for Citadel through webcit-932 and apply patches promptly to mitigate the risk of this vulnerability.