SSL Certificates are not checked for E-Mail Handling
CVE-2023-5422

9.1CRITICAL

Key Information:

Vendor

OTRS AG

Status
OTRS
((OTRS)) Community Edition
Vendor
CVE Published:
16 October 2023

What is CVE-2023-5422?

A vulnerability in OTRS and (OTRS) Community Edition allows for insecure email communication due to improper handling of SSL/TLS certificate validation. The affected email functions using OpenSSL for POP3, IMAP, and SMTP do not verify the results of SSL_get_verify_result(). As a result, it leads to a scenario where untrusted or expired certificates may be accepted, enabling potential attackers to impersonate trusted hosts or exploit various security weaknesses. This lack of robust certificate verification creates significant risks to the integrity and confidentiality of email communications.

Affected Version(s)

((OTRS)) Community Edition 6.0.x <= 6.0.34

OTRS 7.0.x

OTRS 7.0.x < 7.0.47

References

https://otrs.com/release-notes/otrs-security-advisory-202...

CVSS V3.1

Score:
9.1
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Special thanks to Matthias Terlinde for reporting these vulnerability.
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