Vulnerability Information
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Vulnerability Title
calibre has IP Ban Bypass via X-Forwarded-For Header Spoofing
Vulnerability Description
calibre is a cross-platform e-book manager for viewing, converting, editing, and cataloging e-books. Prior to version 9.4.0, the calibre Content Server's brute-force protection mechanism uses a ban key derived from both `remote_addr` and the `X-Forwarded-For` header. Since the `X-Forwarded-For` header is read directly from the HTTP request without any validation or trusted-proxy configuration, an attacker can bypass IP-based bans by simply changing or adding this header, rendering the brute-force protection completely ineffective. This is particularly dangerous for calibre servers exposed to the internet, where brute-force protection is the primary defense against credential stuffing and password guessing attacks. Version 9.4.0 contains a fix for the issue.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Vulnerability Type
过多认证尝试的限制不恰当
Vulnerability Title
Calibre 访问控制错误漏洞
Vulnerability Description
Calibre是印度Kovid Goyal个人开发者的一个开源免费的全能电子书阅读管理与格式转换工具。 calibre 9.4.0之前版本存在访问控制错误漏洞，该漏洞源于暴力破解保护机制存在缺陷，可能导致绕过IP封禁，使暴力破解保护完全失效。
CVSS Information
N/A
Vulnerability Type
N/A