bbs-go through 4.4.6 Improper TLS Certificate Validation in SMTP Email Service

Summary

bbs-go through 4.4.6 contains an improper certificate validation vulnerability that allows network-positioned attackers to intercept SMTP traffic because sendEmail() sets InsecureSkipVerify to true. Attackers can present any certificate to capture SMTP PLAIN auth credentials and read or modify outgoing password-reset and verification emails.

Remediation

1. Inventory every mlogclub bbs-go deployment, including staging.
2. No fixed version appears in the public sources yet. Check the references below and the vendor directly.

References

• Patchhttps://github.com/mlogclub/bbs-go/commit/1a06e35fa6314ee2d3ada70685a7afa740baf6f5
• Advisoryhttps://www.vulncheck.com/advisories/bbs-go-through-4.4.6-improper-tls-certificate-validation-in-smtp-email-service
• Referencehttps://github.com/mlogclub/bbs-go/issues/310
• Referencehttps://github.com/mlogclub/bbs-go
• Referencehttps://github.com/mlogclub/bbs-go/blob/v4.4.6/internal/services/email_service.go#L86-L113