Go to homepageCyberStrike

Menu

Star on GitHub · 3.2k
Sign inDownload

CVE-2021-37845

3.7 · LOW

An issue was discovered in Citadel through webcit-932.

Published May 29, 2023EPSS 0.66%

Overview

CVE-2021-37845 is a low-severity vulnerability. It was published on May 29, 2023 and has a CVSS 3.1 base score of 3.7 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

An issue was discovered in Citadel through webcit-932. A meddler-in-the-middle attacker can fixate their own session during the cleartext phase before a STARTTLS command (a violation of "The STARTTLS command is only valid in non-authenticated state." in RFC2595). This potentially allows an attacker to cause a victim's e-mail messages to be stored into an attacker's IMAP mailbox, but depends on details of the victim's client behavior.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refuncensored.citadel.org/dotgoto?room=Citadel%20SecurityRefnostarttls.secvuln.info/Refuncensored.citadel.org/msg/2099264259Refuncensored.citadel.org/dotgoto?room=Citadel%20SecurityRefnostarttls.secvuln.info/Refuncensored.citadel.org/msg/2099264259

How CyberStrike helps

Frequently asked questions

What is CVE-2021-37845?

CVE-2021-37845 is a low-severity vulnerability. It was published on May 29, 2023 and has a CVSS 3.1 base score of 3.7 (LOW).

How severe is CVE-2021-37845?

This vulnerability has a CVSS 3.1 base score of 3.7, rated LOW. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-37845?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-37845?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-37845 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

Related LOW CVEs from 2021

View all
Browse by year2026202520242023202220212020201920182017201620152014201320122011201020092008200720062005200420032002200120001999