Vulnerability in Otrs
CVE-2023-5422
The functions to fetch e-mail via POP3 or IMAP as well as sending e-mail via SMTP use OpenSSL for static SSL or TLS based communication. As the SSL_get_verify_result() function is not used the certificated is trusted always and it can not be ensured that the certificate satisfies all necessary security requirements. This could allow an attacker to use an invalid certificate to claim to be a trusted host, use expired certificates, or conduct other attacks that could be detected if the certificate is properly validated. This issue affects OTRS: from 7.0.X before 7.0.47, from 8.0.X before 8.0.37; ((OTRS)) Community Edition: from 6.0.X through 6.0.34.
Vulnerability class: Improper Certificate Validation
EPSS: 0.003 (19.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.7 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N.
Affected products
- Otrs
- Otrs Ag — versions 7.0.x, 8.0.x
- Otrs Ag ((Otrs)) Community Edition — versions 6.0.x
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@otrs.com (Vendor Advisory)
Frequently asked questions
- What is CVE-2023-5422?
- CVE-2023-5422 is a high-severity vulnerability in Otrs, classified under Improper Certificate Validation. CVSS score: 8.7/10. Published 2023-10-16.
- How severe is CVE-2023-5422?
- High severity. CVSS v3 base score is 8.7 out of 10.
- Is CVE-2023-5422 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.