CVE Catalog

CVE-2020-37248

MediumCVSS 6.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.19%

8th percentile - higher than 8% of all known CVEs

Summary

OfflineIMAP before version 8.0.3 trusts the server's STARTTLS capability prior to authentication, allowing STRIPTLS/man-in-the-middle attacks. An attacker can hijack the connection and extract account credentials in cleartext.

Risk Assessment

An attacker can intercept login credentials (username and password) for the email account, leading to full account takeover and access to sensitive messages.

Recommendation

Update OfflineIMAP to version 8.0.3 or later. Ensure configuration enforces TLS before sending credentials.

Related vulnerabilities

Original NVD description (English source)

OfflineIMAP before 8.0.3 trusts the server with their STARTTLS capability prior to authentication, which allows STRIPTLS/man-in-the-middle attacks, taking over the connection and extracting account credentials in cleartext.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS