PT-2023-12330 · Citadel · Citadel

Published 2023-05-29 · Updated 2025-01-14 · CVE-2021-37845

Positive Technologies (AI Summary)

CVSS v3.1

3.7

Low

Base vector

AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Name of the Vulnerable Software and Affected Versions Citadel through webcit-932

Description An issue was discovered that allows a meddler-in-the-middle attacker to fixate their own session during the cleartext phase before a STARTTLS command, violating the RFC2595 standard. This potentially enables an attacker to cause a victim's e-mail messages to be stored into the attacker's IMAP mailbox, depending on the victim's client behavior.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2021-37845

Affected Products

Citadel

References · 10

• 🔥 https://uncensored.citadel.org/msg/2099264259 · Exploit
• https://cve.org/CVERecord?id=CVE-2021-37845 · Security Note
• https://osv.dev/vulnerability/CVE-2021-37845 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-37845 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-37845 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-37845 · Vendor Advisory
• https://t.me/cvenotify/51758 · Telegram Post
• http://uncensored.citadel.org/dotgoto?room=Citadel%20Security · Note
• https://nostarttls.secvuln.info · Note
• https://uncensored.citadel.org/readfwd?go=Citadel · Note