SB2023102809 - SSRF in Calibre

Description

This security bulletin contains information about 1 security vulnerability.

1) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2023-46303)

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input within the ink_to_local_path() function in ebooks/conversion/plugins/html_input.py. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.

Remediation

Install update from vendor's website.

References

• https://github.com/0x1717/ssrf-via-img
• https://github.com/kovidgoyal/calibre/compare/v6.18.1...v6.19.0