PT-2020-13223 · Ciphermail · Ciphermail Community Gateway Virtual Appliances+2

Pablo A. Zurro · Published 2020-06-11 · Updated 2020-06-22 · CVE-2020-12714

Positive Technologies (AI Summary)

CVSS v3.1

5.9

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions CipherMail Community Gateway Virtual Appliances versions 1.0.1 through 4.7.1-0 CipherMail Professional/Enterprise Gateway Virtual Appliances versions 1.0.1 through 4.7.1-0 CipherMail Webmail Messenger Virtual Appliances versions 1.1.1 through 3.1.1-0

Description An issue was discovered in CipherMail products where a Diffie-Hellman parameter of insufficient size could allow man-in-the-middle compromise of communications between CipherMail products and external SMTP clients.

Recommendations For CipherMail Community Gateway Virtual Appliances versions 1.0.1 through 4.7.1-0, update to a version with a secure Diffie-Hellman parameter size. For CipherMail Professional/Enterprise Gateway Virtual Appliances versions 1.0.1 through 4.7.1-0, update to a version with a secure Diffie-Hellman parameter size. For CipherMail Webmail Messenger Virtual Appliances versions 1.1.1 through 3.1.1-0, update to a version with a secure Diffie-Hellman parameter size. As a temporary workaround, consider restricting access to external SMTP clients until a secure version is available.

Exploit

Fix

Inadequate Encryption Strength

Weakness Enumeration

CWE-326

Related Identifiers

CVE-2020-12714

Affected Products

Ciphermail Community Gateway Virtual Appliances

Ciphermail Professional/Enterprise Gateway Virtual Appliances

Ciphermail Webmail Messenger Virtual Appliances

References · 9

• 🔥 https://packetstormsecurity.com/files/158001/CipherMail-Community-Virtual-Appliance-4.6.2-Code-Execution.html · Exploit
• 🔥 https://coresecurity.com/core-labs/advisories/ciphermail-multiple-vulnerabilities · Exploit
• https://ciphermail.com/blog/ciphermail-cve-2020-12713_2020-12714.html · Vendor Advisory
• https://ciphermail.com/secure-webmail.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-12714 · Vendor Advisory
• https://ciphermail.com/gateway.html · Vendor Advisory
• https://ciphermail.com/news.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-12714 · Security Note
• https://t.me/cvenotify/4297 · Telegram Post